{"id":1587,"date":"2026-05-26T22:52:45","date_gmt":"2026-05-26T22:52:45","guid":{"rendered":"https:\/\/lean-app.com\/?p=1587"},"modified":"2026-09-05T10:52:52","modified_gmt":"2026-09-05T10:52:52","slug":"metabolisme-de-base","status":"publish","type":"post","link":"https:\/\/lean-app.com\/nl\/metabolisme-de-base\/","title":{"rendered":"Basaal metabolisme: alles wat je moet weten om het precies te berekenen (BMR uitgelegd)"},"content":{"rendered":"<link rel=\"preload\" as=\"image\" href=\"https:\/\/lean-app.com\/wp-content\/uploads\/2026\/05\/lvm-screen_depense.webp\" fetchpriority=\"low\">\n<link rel=\"preload\" as=\"image\" href=\"https:\/\/lean-app.com\/wp-content\/uploads\/2026\/05\/lvm-screen_bilan.webp\" fetchpriority=\"low\">\n<link rel=\"preload\" as=\"image\" href=\"https:\/\/lean-app.com\/wp-content\/uploads\/2026\/05\/lvm-screen_kcal.webp\" fetchpriority=\"low\">\n<link rel=\"preload\" as=\"image\" 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.k{font-family:var(--font-mono);font-size:10px;text-transform:uppercase;letter-spacing:.08em;opacity:.75}\n#lvm-shell .pyramid .l1{background:#0E0E10;width:100%}\n#lvm-shell .pyramid .l2{background:#1D1D1F;width:84%}\n#lvm-shell .pyramid .l3{background:#3a3a3c;width:68%}\n#lvm-shell .pyramid .l4{background:var(--pink);width:52%}\n#lvm-shell .pyramid-cap{text-align:center;font-size:13px;color:var(--muted);margin-top:14px}\n\n\/* Section 7 honnetete : scorecard horizontal bars *\/\n#lvm-shell .scorecard{margin:30px 0 10px;border:1px solid var(--rule);border-radius:20px;padding:28px 26px;background:#fff}\n#lvm-shell .scorecard-head{display:grid;grid-template-columns:1.4fr 1fr 1fr;column-gap:28px;align-items:center;padding-bottom:18px;margin-bottom:8px;border-bottom:1px solid var(--rule-soft)}\n#lvm-shell .scorecard-head .h-crit{font-family:var(--font-mono);font-size:11px;font-weight:500;text-transform:uppercase;letter-spacing:.08em;color:var(--muted)}\n#lvm-shell .scorecard-head .h-brand{display:flex;align-items:center;gap:8px;font-family:var(--font-display);font-size:14px;font-weight:600;color:var(--ink)}\n#lvm-shell .scorecard-head .h-brand img{width:22px;height:22px;border-radius:5px;object-fit:cover}\n#lvm-shell .scorecard-row{display:grid;grid-template-columns:1.4fr 1fr 1fr;column-gap:28px;align-items:center;padding:14px 0;border-bottom:1px solid var(--rule-soft)}\n#lvm-shell .scorecard-row:last-child{border-bottom:0}\n#lvm-shell .scorecard-row .crit{font-size:14px;color:var(--ink);font-weight:500;padding-right:14px}\n#lvm-shell .scorecard-row .bar{display:flex;flex-direction:row-reverse;align-items:center;gap:10px}\n#lvm-shell .scorecard-row .bar .b{flex:1;height:8px;border-radius:99px;background:var(--rule-soft);overflow:hidden;position:relative}\n#lvm-shell .scorecard-row .bar .b > i{display:block;height:100%;border-radius:99px;transition:width 1s cubic-bezier(.22,.61,.36,1)}\n#lvm-shell .scorecard-row .bar.lean .b > i{background:var(--pink)}\n#lvm-shell .scorecard-row .bar.mfp .b > i{background:var(--mfp)}\n#lvm-shell .scorecard-row .bar .v{font-family:var(--font-mono);font-size:12px;font-weight:600;color:var(--ink);min-width:32px;text-align:left}\n\n\/* Section 8 pour qui : persona checklist *\/\n#lvm-shell .persona{margin:28px 0 10px;display:grid;grid-template-columns:1fr;gap:14px}\n#lvm-shell .persona-it{display:grid;grid-template-columns:54px 1fr;gap:16px;padding:22px 24px;background:#fff;border:1px solid var(--rule);border-radius:18px;align-items:center}\n#lvm-shell .persona-it.match{background:var(--pink-soft);border-color:rgba(255,45,110,.25)}\n#lvm-shell .persona-it .pic{width:54px;height:54px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:var(--rule-soft);position:relative;font-family:var(--font-mono);font-size:13px;font-weight:600;color:var(--ink)}\n#lvm-shell .persona-it.match .pic{background:var(--pink);color:#fff}\n#lvm-shell .persona-it .pic svg{width:24px;height:24px}\n#lvm-shell .persona-it h4{margin:0 0 4px;font-size:17px;letter-spacing:-.01em}\n#lvm-shell .persona-it p{margin:0;font-size:14px;color:var(--muted);line-height:1.55}\n#lvm-shell .persona-it.match h4{color:var(--ink)}\n\n\/* Section 9 migration : timeline steps *\/\n#lvm-shell .steps{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;margin:28px 0;position:relative}\n#lvm-shell .steps::before{content:\"\";position:absolute;top:14px;left:7px;right:calc(20% - 18px);height:1px;background:linear-gradient(90deg,var(--pink) 0%,var(--rule-soft) 100%);z-index:0}\n#lvm-shell .step{position:relative;padding-top:24px;z-index:1}\n#lvm-shell .step::before{content:\"\";position:absolute;top:8px;left:0;width:14px;height:14px;border-radius:50%;background:var(--pink);border:3px solid #fff;box-shadow:0 0 0 1px var(--rule)}\n#lvm-shell .step .sn{font-family:var(--font-mono);font-size:11px;color:var(--pink);font-weight:600;letter-spacing:.08em}\n#lvm-shell .step h4{margin:6px 0 6px;font-size:15px;letter-spacing:-.01em}\n#lvm-shell .step p{font-size:13px;color:var(--muted);line-height:1.5;margin:0}\n\n\/* Section 10 debloque : feature stack numbered XL *\/\n#lvm-shell .feat-stack{margin:30px 0 10px;border-top:1px solid var(--rule)}\n#lvm-shell .feat-it{display:grid;grid-template-columns:auto 1fr auto;gap:24px;padding:26px 0;border-bottom:1px solid var(--rule);align-items:center}\n#lvm-shell .feat-it .fn{font-family:var(--font-display);font-size:48px;font-weight:600;color:var(--pink);line-height:1;letter-spacing:-.04em;width:74px}\n#lvm-shell .feat-it .ft{font-family:var(--font-display);font-size:22px;font-weight:600;color:var(--ink);letter-spacing:-.015em;line-height:1.25;margin-bottom:6px}\n#lvm-shell .feat-it .fd{font-size:15px;color:var(--muted);line-height:1.55;margin:0}\n#lvm-shell .feat-it .fc{font-family:var(--font-mono);font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);font-weight:500}\n#lvm-shell .feat-it:last-child{border-bottom:0}\n\n#lvm-shell .faq{margin:22px 0}\n#lvm-shell .faq details{border-bottom:1px solid var(--rule);padding:20px 0}\n#lvm-shell .faq details:first-of-type{border-top:1px solid var(--rule)}\n#lvm-shell .faq summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:18px;font-family:var(--font-display);font-size:20px;font-weight:500;letter-spacing:-.015em;color:var(--ink)}\n#lvm-shell .faq summary::-webkit-details-marker{display:none}\n#lvm-shell .faq summary::after{content:\"+\";font-size:24px;color:var(--muted);font-weight:300;line-height:1;transition:transform .25s, color .25s}\n#lvm-shell .faq details[open] summary::after{transform:rotate(45deg);color:var(--pink)}\n#lvm-shell .faq details[open] summary{color:var(--pink)}\n#lvm-shell .faq .ans{margin-top:14px;font-size:16px;color:var(--muted);line-height:1.65}\n\n#lvm-shell .get-band{background:var(--paper-2);border-radius:24px;padding:48px 36px;margin:60px 0 40px;text-align:center}\n#lvm-shell .get-band .kicker{font-family:var(--font-mono);font-size:11px;text-transform:uppercase;color:var(--pink);font-weight:600;letter-spacing:.1em;margin-bottom:14px}\n#lvm-shell .get-band h3{font-size:36px;margin:0 0 14px;letter-spacing:-.025em}\n#lvm-shell .get-band p{font-size:16px;color:var(--muted);max-width:480px;margin:0 auto 26px}\n#lvm-shell .get-band .stores{display:flex;justify-content:center;gap:14px;flex-wrap:wrap}\n#lvm-shell .get-band .stores a{line-height:0;transition:transform .15s}\n#lvm-shell .get-band .stores a:hover{transform:translateY(-3px)}\n#lvm-shell .get-band .stores img{height:60px;width:auto;border-radius:11px}\n\n#lvm-shell .sources{font-size:14px;color:var(--muted);line-height:1.7}\n#lvm-shell .sources ol{padding-left:22px}\n#lvm-shell .sources li{margin-bottom:8px}\n\n#lvm-shell footer{padding:50px 0 60px;border-top:1px solid var(--rule);margin-top:40px}\n#lvm-shell footer .row{display:flex;justify-content:space-between;align-items:center;gap:18px;flex-wrap:wrap}\n#lvm-shell footer .kicker{font-family:var(--font-mono);font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:var(--pink);font-weight:600}\n#lvm-shell footer p{font-size:13px;color:var(--muted);margin:8px 0 0}\n#lvm-shell footer .stores{display:flex;gap:8px}\n#lvm-shell footer .stores img{height:34px;width:auto;border-radius:6px}\n\n#lvm-shell .rev{opacity:0;transform:translateY(12px);transition:opacity .8s cubic-bezier(.22,.61,.36,1),transform .8s cubic-bezier(.22,.61,.36,1)}\n#lvm-shell .rev.on{opacity:1;transform:translateY(0)}\n@media (prefers-reduced-motion:reduce){#lvm-shell .rev{transition:none;opacity:1;transform:none}}\n\n@media (max-width:760px){\n  #lvm-shell .nav-row{padding:8px 18px;gap:8px}\n  #lvm-shell .nav-link{display:none}\n  #lvm-shell .nav-stores img{height:24px}\n  #lvm-shell .wrap{padding:0 22px}\n  #lvm-shell .hero{padding:34px 0 0}\n  #lvm-shell h1{font-size:46px;letter-spacing:-.035em}\n  #lvm-shell h1 .alt{font-size:.55em;margin-top:10px}\n  #lvm-shell .dek{font-size:20px}\n  #lvm-shell .hero-stores img{height:42px}\n  #lvm-shell .hero-bottom{grid-template-columns:1fr;gap:28px;margin:30px 0 40px;padding-top:24px;align-items:stretch}\n  #lvm-shell .phone-wrap{order:-1}\n  #lvm-shell .phone{width:240px}\n  #lvm-shell .tap-hint.desktop{display:none}\n  #lvm-shell .tap-hint.mobile{display:block;position:relative;left:auto;top:auto;text-align:center;margin:0 auto 10px;width:100%}\n  #lvm-shell .tap-hint.mobile .th-arrow{position:relative;display:block;margin:6px auto 0;width:34px;height:34px;transform:none;color:var(--pink)}\n  #lvm-shell .snippet{padding:24px 22px}\n  #lvm-shell .snippet p{font-size:18px}\n  #lvm-shell section{padding:48px 0}\n  #lvm-shell h2{font-size:34px;letter-spacing:-.03em}\n  #lvm-shell h3{font-size:24px}\n  #lvm-shell .section-label{margin-bottom:22px}\n  #lvm-shell .statement{padding:24px 0;margin:32px 0}\n  #lvm-shell .statement .num{font-size:44px}\n  #lvm-shell .statement .lbl{font-size:19px}\n  #lvm-shell .fig{padding:20px 14px 14px;border-radius:16px}\n  #lvm-shell .cv-wrap{height:310px}\n  #lvm-shell .method{grid-template-columns:1fr;gap:20px}\n  #lvm-shell .method.flip{grid-template-columns:1fr}\n  #lvm-shell .method.flip .m-phone{order:0}\n  #lvm-shell .mini-row{grid-template-columns:repeat(3,1fr);gap:10px}\n  #lvm-shell .mini-phone{padding:3px;border-radius:18px;border-width:1px;max-width:110px}\n  #lvm-shell .mini-phone .notch{width:42px;height:11px;border-radius:0 0 8px 8px}\n  #lvm-shell .mini-phone .scr{border-radius:15px}\n  #lvm-shell .mini-cap{font-size:10px}\n  #lvm-shell .mini-cap strong{font-size:13px}\n  #lvm-shell .duo-row{grid-template-columns:repeat(2,1fr);gap:12px}\n  #lvm-shell .duo-row .mini-phone{max-width:130px}\n  #lvm-shell .steps{grid-template-columns:1fr;gap:18px}\n  #lvm-shell .steps::before{display:none}\n  #lvm-shell .step{padding-top:0;padding-left:24px}\n  #lvm-shell .step::before{top:6px;left:0}\n  #lvm-shell .table-row{grid-template-columns:1.4fr .9fr .9fr}\n  #lvm-shell .table-row > .crit{padding:13px 12px;font-size:13px}\n  #lvm-shell .table-row > .cell{padding:13px 10px;font-size:12px;gap:8px}\n  #lvm-shell .table-row.head > div{padding:14px 12px;font-size:10px;gap:7px}\n  #lvm-shell .table-row.head .brand-cell img{width:20px;height:20px}\n  #lvm-shell .get-band{padding:36px 22px;border-radius:18px;margin:40px 0 30px}\n  #lvm-shell .get-band h3{font-size:28px}\n  #lvm-shell .get-band .stores img{height:50px}\n  #lvm-shell .cta-band{padding:22px;gap:14px}\n  #lvm-shell .cta-band .l{font-size:16px;min-width:0}\n  #lvm-shell .cta-band .stores img{height:38px}\n  #lvm-shell .faq summary{font-size:18px;gap:14px}\n  #lvm-shell .pyramid{max-width:100%}\n  #lvm-shell .pyramid .level{padding:11px 14px;font-size:14px}\n  #lvm-shell .scorecard{padding:20px 16px;border-radius:16px}\n  #lvm-shell .scorecard-head{grid-template-columns:1.2fr 1fr 1fr;column-gap:14px}\n  #lvm-shell .scorecard-head .h-brand{font-size:12px;gap:5px}\n  #lvm-shell .scorecard-head .h-brand img{width:18px;height:18px}\n  #lvm-shell .scorecard-row{grid-template-columns:1.2fr 1fr 1fr;column-gap:14px;padding:12px 0}\n  #lvm-shell .scorecard-row .crit{font-size:13px;padding-right:8px}\n  #lvm-shell .scorecard-row .bar{gap:6px}\n  #lvm-shell .scorecard-row .bar .v{font-size:11px;min-width:26px}\n  #lvm-shell .persona-it{grid-template-columns:44px 1fr;gap:12px;padding:16px 16px;border-radius:14px}\n  #lvm-shell .persona-it .pic{width:44px;height:44px;font-size:12px}\n  #lvm-shell .persona-it h4{font-size:15px}\n  #lvm-shell .persona-it p{font-size:13px}\n  #lvm-shell .feat-it{grid-template-columns:auto 1fr;gap:14px;padding:20px 0}\n  #lvm-shell .feat-it .fn{font-size:36px;width:54px}\n  #lvm-shell .feat-it .ft{font-size:18px}\n  #lvm-shell .feat-it .fd{font-size:13px}\n  #lvm-shell .feat-it .fc{display:none}\n}\n@media (max-width:480px){\n  #lvm-shell .phone-tabs{gap:5px}\n  #lvm-shell .phone-tabs button{padding:5px 8px;font-size:10px}\n  #lvm-shell .nav-stores{gap:4px}\n  #lvm-shell .nav-stores img{height:22px}\n  #lvm-shell .hero-stores img{height:40px}\n  #lvm-shell .crumb{font-size:12px}\n  #lvm-shell .table-row{grid-template-columns:1.3fr .85fr .85fr}\n  #lvm-shell .table-row > .crit{padding:11px 9px;font-size:12px}\n  #lvm-shell .table-row > .cell{padding:11px 8px;font-size:11px;gap:6px}\n  #lvm-shell .table-row.head > div{padding:11px 9px;font-size:9px;gap:5px}\n}\n\n\/* Calculator-specific styles, scoped #lvm-shell *\/\n#lvm-shell .calc-board{display:grid;grid-template-columns:1fr;gap:18px;margin:32px 0}\n@media(min-width:780px){#lvm-shell .calc-board{grid-template-columns:1fr 1fr;gap:24px}}\n#lvm-shell .calc-inputs{background:#FAF7F2;border-radius:14px;padding:22px;border:1px solid var(--rule-soft)}\n#lvm-shell .calc-inputs h3{font-family:var(--font-display);font-size:18px;font-weight:600;margin:0 0 16px;color:var(--ink);letter-spacing:-.01em}\n#lvm-shell .calc-row{margin:0 0 14px}\n#lvm-shell .calc-row label{display:block;font-size:13px;color:var(--muted);margin-bottom:6px;font-weight:500}\n#lvm-shell .calc-row input,#lvm-shell .calc-row select{width:100%;padding:11px 13px;border:1px solid var(--rule);border-radius:9px;font-size:16px;background:#fff;color:var(--ink);font-family:var(--font-text);box-sizing:border-box}\n#lvm-shell .calc-row input:focus,#lvm-shell .calc-row select:focus{outline:2px solid var(--pink);outline-offset:1px;border-color:var(--pink)}\n#lvm-shell .calc-sex{display:flex;gap:8px}\n#lvm-shell .calc-sex label{flex:1;display:flex;align-items:center;justify-content:center;gap:6px;padding:11px 8px;background:#fff;border:1px solid var(--rule);border-radius:9px;cursor:pointer;margin:0;font-size:14px;font-weight:500;color:var(--ink)}\n#lvm-shell .calc-sex input{display:none}\n#lvm-shell .calc-sex input:checked + span{color:var(--pink);font-weight:600}\n#lvm-shell .calc-sex label:has(input:checked){border-color:var(--pink);background:var(--pink-soft)}\n#lvm-shell .calc-bf{display:flex;align-items:center;gap:10px}\n#lvm-shell .calc-bf input[type=range]{flex:1;accent-color:var(--pink);height:6px}\n#lvm-shell .calc-bf .bf-val{font-weight:600;color:var(--pink);min-width:42px;font-family:var(--font-mono);font-size:15px}\n#lvm-shell .calc-results{display:grid;grid-template-columns:1fr;gap:12px}\n#lvm-shell .calc-card{background:#fff;border:1px solid var(--rule);border-radius:14px;padding:18px 20px}\n#lvm-shell .calc-card.lean{border-left:4px solid var(--pink);background:linear-gradient(90deg,var(--pink-soft),#fff 30%)}\n#lvm-shell .calc-card .label{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);font-family:var(--font-mono)}\n#lvm-shell .calc-card .formula{font-size:13px;color:var(--dim);margin-top:2px}\n#lvm-shell .calc-card .result{font-family:var(--font-display);font-size:34px;font-weight:600;letter-spacing:-.025em;margin-top:8px;color:var(--ink);line-height:1}\n#lvm-shell .calc-card .result .unit{font-size:14px;font-weight:500;color:var(--muted);margin-left:6px;letter-spacing:0}\n#lvm-shell .calc-card.lean .result{color:var(--pink)}\n#lvm-shell .calc-delta{margin-top:10px;padding:12px 14px;background:#fff;border:1px dashed var(--pink);border-radius:10px;font-size:14px;color:var(--ink)}\n#lvm-shell .calc-delta b{color:var(--pink);font-family:var(--font-mono)}\n#lvm-shell .calc-note{margin-top:14px;font-size:13px;color:var(--muted);line-height:1.5}\n#lvm-shell .calc-note a{color:var(--pink);text-decoration:underline}\n\n\/* Statement block *\/\n#lvm-shell .statement{margin:54px 0;padding:48px 32px;background:#FAF7F2;border-radius:18px;text-align:center}\n#lvm-shell .statement p{font-family:var(--font-display);font-size:34px;line-height:1.2;font-weight:500;letter-spacing:-.025em;color:var(--ink);margin:0;max-width:680px;margin-inline:auto}\n#lvm-shell .statement .accent{color:var(--pink)}\n@media(max-width:640px){#lvm-shell .statement{padding:38px 22px}#lvm-shell .statement p{font-size:24px}}\n\n\/* Profil cards (no scrollable table) *\/\n#lvm-shell .profile-grid{display:grid;grid-template-columns:1fr;gap:16px;margin:32px 0}\n#lvm-shell .profile-card{background:#fff;border:1px solid var(--rule);border-radius:14px;padding:20px 22px}\n#lvm-shell .profile-card h4{font-family:var(--font-display);font-size:17px;font-weight:600;margin:0 0 4px;color:var(--ink)}\n#lvm-shell .profile-card .meta{font-size:13px;color:var(--muted);margin-bottom:14px}\n#lvm-shell .profile-card .rows{display:grid;grid-template-columns:1fr;gap:6px}\n#lvm-shell .profile-card .rw{display:grid;grid-template-columns:1fr auto;gap:10px;padding:8px 12px;background:#FAF7F2;border-radius:8px;font-size:14px;align-items:center}\n#lvm-shell .profile-card .rw .v{font-family:var(--font-mono);font-weight:600;color:var(--ink);font-size:13px}\n#lvm-shell .profile-card .rw.lean{background:var(--pink-soft);border-left:3px solid var(--pink)}\n#lvm-shell .profile-card .rw.lean .v{color:var(--pink)}\n#lvm-shell .profile-card .delta{font-size:12px;color:var(--dim);margin-top:8px}\n\n\/* Comparator cards (3 formulas pros\/cons) *\/\n#lvm-shell .compar-grid{display:grid;grid-template-columns:1fr;gap:16px;margin:24px 0}\n#lvm-shell .compar-card{background:#fff;border:1px solid var(--rule);border-radius:14px;padding:22px}\n#lvm-shell .compar-card.lean{border-left:4px solid var(--pink)}\n#lvm-shell .compar-card h4{font-family:var(--font-display);font-size:18px;font-weight:600;margin:0 0 4px;color:var(--ink)}\n#lvm-shell .compar-card .year{font-size:12px;color:var(--muted);font-family:var(--font-mono);margin-bottom:14px;letter-spacing:.04em}\n#lvm-shell .compar-card .desc{font-size:14px;line-height:1.55;color:var(--ink-2);margin:0 0 12px}\n#lvm-shell .compar-card .pros,#lvm-shell .compar-card .cons{margin:6px 0;font-size:13px;line-height:1.5}\n#lvm-shell .compar-card .pros{color:var(--green)}\n#lvm-shell .compar-card .cons{color:var(--red)}\n#lvm-shell .compar-card .pros b,#lvm-shell .compar-card .cons b{display:inline-block;width:18px}\n\n\/* Pyramide section *\/\n#lvm-shell .pyramide-illust{margin:40px auto 8px;display:flex;flex-direction:column;align-items:center;gap:14px;max-width:220px}\n#lvm-shell .pyramide-illust img{width:100%;border-radius:18px;box-shadow:0 12px 32px rgba(20,20,40,.12)}\n#lvm-shell .pyramide-cap{font-size:13px;color:var(--muted);text-align:center;line-height:1.5}\n#lvm-shell .pyramide-cap b{display:block;color:var(--ink);font-weight:600;margin-bottom:3px}\n\n\/* FAQ details *\/\n#lvm-shell details.faq{background:#fff;border:1px solid var(--rule);border-radius:10px;margin:8px 0;overflow:hidden}\n#lvm-shell details.faq summary{padding:16px 20px;font-weight:600;font-size:16px;color:var(--ink);cursor:pointer;list-style:none;position:relative;padding-right:48px;font-family:var(--font-display);letter-spacing:-.01em}\n#lvm-shell details.faq summary::-webkit-details-marker{display:none}\n#lvm-shell details.faq summary::after{content:\"+\";position:absolute;right:20px;top:50%;transform:translateY(-50%);color:var(--pink);font-size:22px;font-weight:300;line-height:1}\n#lvm-shell details.faq[open] summary::after{content:\"\u2212\"}\n#lvm-shell details.faq .faq-body{padding:0 20px 18px;font-size:15px;line-height:1.65;color:var(--ink-2)}\n#lvm-shell details.faq .faq-body p{margin:0 0 8px}\n\n\/* Sources *\/\n#lvm-shell .sources{margin:48px 0 32px;padding:24px;background:#FAF7F2;border-radius:14px;font-size:13px;line-height:1.6;color:var(--muted)}\n#lvm-shell .sources h4{font-family:var(--font-display);font-size:14px;font-weight:600;margin:0 0 10px;color:var(--ink);text-transform:uppercase;letter-spacing:.06em}\n#lvm-shell .sources a{color:var(--pink);text-decoration:none}\n#lvm-shell .sources a:hover{text-decoration:underline}\n#lvm-shell .sources ol{margin:0;padding-left:22px}\n#lvm-shell .sources li{margin:4px 0}\n\n\/* BodyScan illust *\/\n#lvm-shell .bodyscan-illust{margin:40px auto 8px;display:flex;flex-direction:column;align-items:center;gap:14px;max-width:220px}\n#lvm-shell .bodyscan-illust .mini-phone{max-width:200px;padding:3px;border:1px solid rgba(255,255,255,.07);border-radius:22px;background:linear-gradient(145deg,#2a2a2a,#0e0e0e);box-shadow:0 18px 36px rgba(0,0,0,.14);position:relative}\n#lvm-shell .bodyscan-illust .mini-phone .notch{position:absolute;top:0;left:50%;transform:translateX(-50%);width:40px;height:11px;background:#0a0a0a;border-radius:0 0 7px 7px;z-index:5}\n#lvm-shell .bodyscan-illust .mini-phone .scr{border-radius:18px;overflow:hidden;background:#FAF0E6;aspect-ratio:9\/19.5}\n#lvm-shell .bodyscan-illust .mini-phone .scr img{width:100%;height:100%;object-fit:cover;display:block}\n#lvm-shell .bodyscan-cap{font-size:13px;color:var(--muted);text-align:center;line-height:1.5}\n#lvm-shell .bodyscan-cap b{display:block;color:var(--ink);font-weight:600;margin-bottom:3px}\n\n\/* Body copy paragraphs *\/\n#lvm-shell h2.sect{font-family:var(--font-display);font-size:34px;font-weight:600;letter-spacing:-.03em;margin:64px 0 16px;line-height:1.15;color:var(--ink)}\n#lvm-shell h2.sect .num{font-family:var(--font-mono);font-size:13px;font-weight:500;color:var(--pink);display:block;text-transform:uppercase;letter-spacing:.08em;margin-bottom:6px;-webkit-font-smoothing:antialiased}\n#lvm-shell h3.sub{font-family:var(--font-display);font-size:22px;font-weight:600;margin:32px 0 12px;color:var(--ink);letter-spacing:-.015em}\n#lvm-shell .body p{margin:0 0 18px;font-size:17px;line-height:1.7;color:var(--ink-2)}\n#lvm-shell .body p b{color:var(--ink);font-weight:600}\n\n\/* CTA band *\/\n#lvm-shell .get-band{margin:48px 0 24px;padding:42px 32px;background:linear-gradient(135deg,#fff,#FAF7F2);border:1px solid var(--rule);border-radius:18px;text-align:center}\n#lvm-shell .get-band h3{font-family:var(--font-display);font-size:30px;font-weight:600;margin:0 0 6px;color:var(--ink);letter-spacing:-.025em}\n#lvm-shell .get-band p{margin:0 0 22px;font-size:16px;color:var(--muted);line-height:1.5}\n#lvm-shell .get-band .stores{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;align-items:center}\n#lvm-shell .get-band .stores img{height:54px;width:auto;border-radius:10px}\n@media(max-width:640px){#lvm-shell .get-band h3{font-size:22px}}\n\n#lvm-shell .micro-cta{margin:24px 0;padding:18px 22px;background:var(--pink-soft);border-left:3px solid var(--pink);border-radius:0 10px 10px 0;font-size:15px;line-height:1.55}\n#lvm-shell .micro-cta a{color:var(--pink);font-weight:600;text-decoration:none}\n#lvm-shell .micro-cta a:hover{text-decoration:underline}\n<\/style>\n<style id=\"lvm-collision-reset\">\n\/* Hard reset for global theme styles that collide with our content *\/\nbody.postid-1587 #lvm-shell .hero{display:block!important;align-items:initial!important;justify-content:initial!important;text-align:left!important;flex-direction:initial!important;padding:54px 0 0!important}\nbody.postid-1587 #lvm-shell .wrap,\nbody.postid-1587 #lvm-shell main.wrap{display:block!important;max-width:760px!important;margin-left:auto!important;margin-right:auto!important;padding-left:28px!important;padding-right:28px!important}\n@media (max-width:820px){\n  body.postid-1587 #lvm-shell .wrap,\n  body.postid-1587 #lvm-shell main.wrap{padding-left:18px!important;padding-right:18px!important}\n}\nhtml, body{overflow-x:hidden!important}\nbody.postid-1587 #lvm-shell{overflow-x:hidden;max-width:100vw}\nbody.postid-1587 #lvm-shell *{max-width:100%}\nbody.postid-1587 #lvm-shell .nav-row{max-width:100vw;box-sizing:border-box}\nbody.postid-1587 #lvm-shell.force-show .rev{opacity:1!important;transform:none!important}\n\n\/* === A.1 PHONE BACKGROUND CLASSES === *\/\nbody.postid-1587 #lvm-shell .phone-bg{position:absolute;inset:0;width:100%;height:100%;background-size:cover;background-position:center top;background-repeat:no-repeat;transition:opacity .28s ease;background-color:#FAF0E6}\nbody.postid-1587 #lvm-shell .phone-bg.tab-depense{background-image:url(https:\/\/lean-app.com\/wp-content\/uploads\/2026\/05\/lvm-screen_depense.webp)}\nbody.postid-1587 #lvm-shell .phone-bg.tab-bilan{background-image:url(https:\/\/lean-app.com\/wp-content\/uploads\/2026\/05\/lvm-screen_bilan.webp)}\nbody.postid-1587 #lvm-shell .phone-bg.tab-kcal{background-image:url(https:\/\/lean-app.com\/wp-content\/uploads\/2026\/05\/lvm-screen_kcal.webp)}\nbody.postid-1587 #lvm-shell .phone-bg.tab-strategie{background-image:url(https:\/\/lean-app.com\/wp-content\/uploads\/2026\/05\/lvm-screen_strategie.webp)}\nbody.postid-1587 #lvm-shell .phone-bg.sub-BMR{background-image:url(https:\/\/lean-app.com\/wp-content\/uploads\/2026\/05\/lvm-screen_BMR.webp)}\nbody.postid-1587 #lvm-shell .phone-bg.sub-NEAT{background-image:url(https:\/\/lean-app.com\/wp-content\/uploads\/2026\/05\/lvm-screen_NEAT.webp)}\nbody.postid-1587 #lvm-shell .phone-bg.sub-EAT{background-image:url(https:\/\/lean-app.com\/wp-content\/uploads\/2026\/05\/lvm-screen_EAT.webp)}\nbody.postid-1587 #lvm-shell .phone-bg.sub-TEF{background-image:url(https:\/\/lean-app.com\/wp-content\/uploads\/2026\/05\/lvm-screen_TEF.webp)}\n\n\/* === v11.3 CTA BANDS MOBILE (badges plus gros + centrage) === *\/\n@media (max-width:760px){\n  body.postid-1587 #lvm-shell .cta-band{flex-direction:column!important;align-items:center!important;text-align:center!important;padding:26px 22px!important;gap:20px!important}\n  body.postid-1587 #lvm-shell .cta-band .l{min-width:0!important;width:100%!important;font-size:16px!important;line-height:1.5!important;text-align:center!important}\n  body.postid-1587 #lvm-shell .cta-band .stores{width:100%!important;justify-content:center!important;flex-wrap:nowrap!important;gap:10px!important}\n  body.postid-1587 #lvm-shell .cta-band .stores a{flex:1!important;max-width:170px!important;display:flex!important;justify-content:center!important}\n  body.postid-1587 #lvm-shell .cta-band .stores picture{width:100%!important;display:block!important}\n  body.postid-1587 #lvm-shell .cta-band .stores img{height:56px!important;width:100%!important;max-width:170px!important;object-fit:contain!important;object-position:center!important;border-radius:10px!important}\n  body.postid-1587 #lvm-shell .get-band{padding:38px 22px!important}\n  body.postid-1587 #lvm-shell .get-band .stores{justify-content:center!important;flex-wrap:nowrap!important;gap:10px!important}\n  body.postid-1587 #lvm-shell .get-band .stores a{flex:1!important;max-width:170px!important;display:flex!important;justify-content:center!important}\n  body.postid-1587 #lvm-shell .get-band .stores picture{width:100%!important;display:block!important}\n  body.postid-1587 #lvm-shell .get-band .stores img{height:56px!important;width:100%!important;max-width:170px!important;object-fit:contain!important;object-position:center!important;border-radius:10px!important}\n  body.postid-1587 #lvm-shell .get-band h3{font-size:26px!important;line-height:1.2!important}\n  body.postid-1587 #lvm-shell .get-band p{font-size:15px!important}\n}\n\n\/* === v11.2 BRAND BANNER above table responsive === *\/\n@media (max-width:760px){\n  body.postid-1587 #lvm-shell .brand-banner img{width:54px!important;height:54px!important}\n  body.postid-1587 #lvm-shell .brand-banner > div{padding:16px 12px!important;gap:8px!important}\n  body.postid-1587 #lvm-shell .brand-banner > div > div{font-size:15px!important}\n}\n\n\/* === v11.4 SCORECARD partie 7: redesign mobile === *\/\n@media (max-width:760px){\n  body.postid-1587 #lvm-shell .scorecard{padding:18px 16px!important;border-radius:16px!important}\n  body.postid-1587 #lvm-shell .scorecard-head{display:none!important}\n  body.postid-1587 #lvm-shell .scorecard-row{\n    display:block!important;\n    padding:14px 0!important;\n    border-bottom:1px solid #E8E2D6!important;\n  }\n  body.postid-1587 #lvm-shell .scorecard-row .crit{\n    display:block!important;\n    font-size:13px!important;\n    font-weight:600!important;\n    color:#0E0E10!important;\n    margin-bottom:10px!important;\n    padding-right:0!important;\n  }\n  body.postid-1587 #lvm-shell .scorecard-row .bar{\n    display:grid!important;\n    grid-template-columns:54px 1fr 32px!important;\n    column-gap:8px!important;\n    align-items:center!important;\n    padding:5px 0!important;\n    flex-direction:initial!important;\n    position:relative!important;\n  }\n  body.postid-1587 #lvm-shell .scorecard-row .bar::before{\n    content:attr(data-brand)!important;\n    font-family:-apple-system,'SF Pro Display',sans-serif!important;\n    font-size:11px!important;\n    font-weight:600!important;\n    text-transform:uppercase!important;\n    letter-spacing:.05em!important;\n    color:#0E0E10!important;\n  }\n  body.postid-1587 #lvm-shell .scorecard-row .bar.lean::before{color:#FF2D6E!important}\n  body.postid-1587 #lvm-shell .scorecard-row .bar.mfp::before{color:#5B7FFF!important}\n  body.postid-1587 #lvm-shell .scorecard-row .bar .b{\n    height:10px!important;\n    width:100%!important;\n    border-radius:99px!important;\n    position:relative!important;\n    background:#EFEAE0!important;\n    overflow:hidden!important;\n  }\n  body.postid-1587 #lvm-shell .scorecard-row .bar .b > i{\n    display:block!important;\n    height:100%!important;\n    border-radius:99px!important;\n  }\n  body.postid-1587 #lvm-shell .scorecard-row .bar .v{\n    font-family:-apple-system,'SF Pro Display',sans-serif!important;\n    font-size:12px!important;\n    font-weight:700!important;\n    color:#0E0E10!important;\n    min-width:0!important;\n    text-align:right!important;\n  }\n}\n\n\/* === A.2 CHARTS MOBILE === *\/\n@media (max-width:760px){\n  \/* v13: charts FULL WIDTH (less card padding) + plus hauts pour vraie respiration *\/\n  body.postid-1587 #lvm-shell .cv-wrap{height:380px!important;min-height:360px!important;max-height:420px!important;width:100%!important}\n  body.postid-1587 #lvm-shell .cv-wrap canvas{width:100%!important;height:100%!important;display:block!important}\n  body.postid-1587 #lvm-shell .fig{padding:16px 4px 14px!important;margin:24px -4px 14px!important;overflow:visible!important}\n  body.postid-1587 #lvm-shell .fig-head{padding:0 12px!important;flex-wrap:wrap!important;gap:6px!important;margin-bottom:10px!important}\n  body.postid-1587 #lvm-shell .fig-body{padding:0 2px!important}\n  body.postid-1587 #lvm-shell .fig-cap{padding:0 12px!important;font-size:13px!important;margin-top:10px!important}\n}\n@media (max-width:480px){\n  body.postid-1587 #lvm-shell .cv-wrap{height:360px!important;min-height:340px!important;max-height:380px!important}\n  body.postid-1587 #lvm-shell .fig{padding:14px 2px 12px!important;margin:20px -6px 12px!important;border-radius:14px!important}\n  body.postid-1587 #lvm-shell .fig-body{padding:0!important}\n}\n\n\/* === v11.2 TABLEAU MOBILE STACKED CARDS avec mini-tags Lean\/MFP === *\/\n@media (max-width:760px){\n  body.postid-1587 #lvm-shell .table{border-radius:14px!important}\n  body.postid-1587 #lvm-shell .table-row.head{display:none!important}\n  body.postid-1587 #lvm-shell .table-row{\n    display:grid!important;\n    grid-template-columns:1fr 1fr!important;\n    grid-template-areas:\"crit crit\" \"lean mfp\"!important;\n    gap:0!important;\n    min-height:0!important;\n  }\n  body.postid-1587 #lvm-shell .table-row > .crit{\n    grid-area:crit!important;background:#0E0E10!important;color:#fff!important;\n    padding:11px 14px!important;font-size:13px!important;font-weight:600!important;\n    letter-spacing:-0.1px!important;border-right:0!important;line-height:1.35!important;\n    font-family:-apple-system,BlinkMacSystemFont,'SF Pro Display',sans-serif!important;text-transform:none!important;\n  }\n  body.postid-1587 #lvm-shell .table-row > .cell.lean{\n    grid-area:lean!important;border-right:1px solid #E8E2D6!important;\n    position:relative!important;background:#FFF1F5!important;padding-top:30px!important;\n  }\n  body.postid-1587 #lvm-shell .table-row > .cell:not(.lean):not(.crit){\n    grid-area:mfp!important;background:#F5F5F7!important;padding-top:30px!important;\n    position:relative!important;\n  }\n  body.postid-1587 #lvm-shell .table-row > .cell.lean::before{\n    content:\"LEAN\"!important;position:absolute!important;top:8px!important;left:12px!important;\n    right:auto!important;bottom:auto!important;width:auto!important;height:auto!important;\n    background:transparent!important;\n    font-family:-apple-system,'SF Pro Display',sans-serif!important;\n    font-size:10px!important;font-weight:700!important;letter-spacing:.07em!important;\n    color:#FF2D6E!important;\n  }\n  body.postid-1587 #lvm-shell .table-row > .cell:not(.lean):not(.crit)::before{\n    content:\"CRONOMETER\"!important;position:absolute!important;top:8px!important;left:12px!important;\n    font-family:-apple-system,'SF Pro Display',sans-serif!important;\n    font-size:10px!important;font-weight:700!important;letter-spacing:.07em!important;\n    color:#E15822!important;\n  }\n  body.postid-1587 #lvm-shell .table-row > .cell{\n    padding:12px 12px!important;font-size:13px!important;line-height:1.4!important;\n    align-items:flex-start!important;gap:7px!important;\n  }\n  body.postid-1587 #lvm-shell .icn{flex-shrink:0!important;margin-top:1px!important}\n}\n\n\/* === A.5 MINI-LOGOS partie 7 (triplet NEAT\/EAT\/TEF) === *\/\n@media (max-width:760px){\n  body.postid-1587 #lvm-shell .mini-row{gap:6px!important;margin:24px 0!important;grid-template-columns:repeat(3,1fr)!important}\n  body.postid-1587 #lvm-shell .mini-phone{max-width:100px!important;padding:2px!important;border-radius:14px!important;border-width:1px!important}\n  body.postid-1587 #lvm-shell .mini-phone.tiny{max-width:96px!important;padding:2px!important;border-radius:13px!important}\n  body.postid-1587 #lvm-shell .mini-phone .notch{width:30px!important;height:8px!important;border-radius:0 0 5px 5px!important}\n  body.postid-1587 #lvm-shell .mini-phone .scr{border-radius:11px!important}\n  body.postid-1587 #lvm-shell .mini-cap{font-size:10px!important;margin-top:8px!important}\n  body.postid-1587 #lvm-shell .mini-cap strong{font-size:12px!important;margin-top:2px!important}\n}\n\n\/* === MOCKUP TAP HINT MOBILE === *\/\n@media (max-width:760px){\n  body.postid-1587 #lvm-shell .tap-hint.mobile{position:relative!important;width:100%!important;left:auto!important;top:auto!important;text-align:center!important;margin:0 auto 14px!important;display:block!important}\n  body.postid-1587 #lvm-shell .tap-hint.desktop{display:none!important}\n  body.postid-1587 #lvm-shell .tap-hint.hidden{display:none!important;height:0!important;margin:0!important;padding:0!important}\n}\n\n\/* === A.6 BODYSCAN ILLUST partie BMR (override mobile mini-phone) === *\/\nbody.postid-1587 #lvm-shell .bodyscan-illust{margin:40px auto 8px!important;display:flex!important;flex-direction:column!important;align-items:center!important;gap:14px!important;max-width:220px!important}\nbody.postid-1587 #lvm-shell .bodyscan-illust .mini-phone{max-width:200px!important;padding:3px!important;border-radius:22px!important;border-width:1px!important}\nbody.postid-1587 #lvm-shell .bodyscan-illust .mini-phone .notch{width:40px!important;height:11px!important;border-radius:0 0 7px 7px!important}\nbody.postid-1587 #lvm-shell .bodyscan-illust .mini-phone .scr{border-radius:18px!important}\n@media (max-width:760px){\n  body.postid-1587 #lvm-shell .bodyscan-illust{max-width:180px!important}\n  body.postid-1587 #lvm-shell .bodyscan-illust .mini-phone{max-width:160px!important;padding:3px!important;border-radius:20px!important}\n  body.postid-1587 #lvm-shell .bodyscan-illust .mini-phone .notch{width:34px!important;height:9px!important;border-radius:0 0 6px 6px!important}\n  body.postid-1587 #lvm-shell .bodyscan-illust .mini-phone .scr{border-radius:16px!important}\n}\n\n\/* Fix CompressX picture wrappers \u2014 images ne doivent pas exploser *\/\n#lvm-shell picture{display:block;max-width:100%}\n#lvm-shell picture img{display:block;max-width:100%;height:auto}\n#lvm-shell .bodyscan-illust .mini-phone .scr picture{display:block;width:100%;height:100%}\n#lvm-shell .bodyscan-illust .mini-phone .scr picture img{width:100%!important;height:100%!important;object-fit:cover!important}\n#lvm-shell .pyramide-illust picture{display:block;width:100%}\n#lvm-shell .pyramide-illust picture img{width:100%!important;height:auto!important;border-radius:18px}\n\/* BodyScan illust: no dark phone frame (plain screenshot display) *\/\n#lvm-shell .bodyscan-illust .mini-phone{background:transparent;padding:0;border:none;box-shadow:none;border-radius:0}\n#lvm-shell .bodyscan-illust .mini-phone .notch{display:none}<\/style>\n\n<div id=\"lvm-shell\" class=\"force-show\">\n\n<nav class=\"nav\"><div class=\"nav-row\">\n  <a class=\"nav-brand\" href=\"https:\/\/lean-app.com\/nl\/\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/lean-app.com\/wp-content\/uploads\/2026\/05\/lvm-logo-lean-square-scaled.webp\" alt=\"Lean\" width=\"28\" height=\"28\"><span>Lean<\/span><\/a>\n  <div class=\"nav-spacer\"><\/div>\n  <a class=\"nav-link\" href=\"https:\/\/lean-app.com\/nl\/\">Home<\/a>\n  <div class=\"nav-stores\">\n    <a href=\"https:\/\/apps.apple.com\/fr\/app\/lean-calorie-ai-podometre\/id6738668646?utm_source=seo&#038;utm_medium=blog&#038;utm_campaign=pillar-bmr\" target=\"_blank\" rel=\"noopener\" aria-label=\"App Store\"><img decoding=\"async\" src=\"https:\/\/lean-app.com\/wp-content\/uploads\/2026\/05\/lvm-appstore-official.webp\" alt=\"App Store\"><\/a>\n    <a href=\"https:\/\/play.google.com\/store\/apps\/details?id=com.lean.testsqflite&#038;utm_source=seo&#038;utm_medium=blog&#038;utm_campaign=pillar-bmr\" target=\"_blank\" rel=\"noopener\" aria-label=\"Google Play\"><img decoding=\"async\" src=\"https:\/\/lean-app.com\/wp-content\/uploads\/2026\/05\/lvm-googleplay-official.webp\" alt=\"Google Play\"><\/a>\n  <\/div>\n<\/div><\/nav>\n<div class=\"progress\"><i><\/i><\/div>\n<main class=\"wrap\">\n\n<section class=\"hero\" aria-labelledby=\"title\">\n  <div class=\"crumb\"><a href=\"https:\/\/lean-app.com\/nl\/\">Home<\/a> &nbsp;\/&nbsp; Basaal metabolisme<\/div>\n  <div class=\"eyebrow\">Pijler &middot; Wetenschap van het metabolisme<\/div>\n  <h1 id=\"title\">Basaal metabolisme.\n    <span class=\"alt\">Alles wat je moet weten om het precies te berekenen: BMR uitgelegd.<\/span>\n  <\/h1>\n  <p class=\"dek\">Het basaal metabolisme (BMR) is de basis van je TDEE en van elke geslaagde cut. Maar het is alleen nauwkeurig als je echte vetvrije massa bekend is. Dit is waarom.<\/p>\n  <div class=\"byline\">\n    <img class=\"by-logo\" src=\"https:\/\/lean-app.com\/wp-content\/uploads\/2026\/05\/lvm-logo-lean-square-scaled.webp\" alt=\"\" width=\"512\" height=\"512\" loading=\"lazy\" decoding=\"async\" \/>\n    <span><strong>Het Lean-team<\/strong> &middot; Leestijd 11&nbsp;min &middot; Bijgewerkt op 26 mei 2026<\/span>\n  <\/div>\n  <div class=\"hero-stores\">\n    <a href=\"https:\/\/apps.apple.com\/fr\/app\/lean-calorie-ai-podometre\/id6738668646?utm_source=seo&#038;utm_medium=blog&#038;utm_campaign=pillar-bmr\" target=\"_blank\" rel=\"noopener\">\n      <img src=\"https:\/\/lean-app.com\/wp-content\/uploads\/2026\/05\/lvm-appstore-official.webp\" alt=\"T\u00e9l\u00e9charger sur l'App Store\" width=\"413\" height=\"122\" loading=\"lazy\" decoding=\"async\" \/>\n    <\/a>\n    <a href=\"https:\/\/play.google.com\/store\/apps\/details?id=com.lean.testsqflite&#038;utm_source=seo&#038;utm_medium=blog&#038;utm_campaign=pillar-bmr\" target=\"_blank\" rel=\"noopener\">\n      <img src=\"https:\/\/lean-app.com\/wp-content\/uploads\/2026\/05\/lvm-googleplay-official.webp\" alt=\"Disponible sur Google Play\" width=\"315\" height=\"95\" loading=\"lazy\" decoding=\"async\" \/>\n    <\/a>\n    <span class=\"or\">Gratis download<\/span>\n  <\/div>\n\n  <div class=\"hero-bottom\">\n    <div class=\"hero-lead\">\n      De BMR (Basal Metabolic Rate, basaal metabolisme) is de energie die je lichaam in rust verbrandt om je hart, je hersenen en je nieren te laten werken. Het vertegenwoordigt 60 tot 75&nbsp;% van je totale verbruik. Toch berekenen de meeste apps het op gewicht+leeftijd+geslacht, en zitten er dus 200 tot 500&nbsp;kcal\/dag naast bij gespierde of zittende profielen.\n    <\/div>\n    <div class=\"phone-wrap rev\">\n      <div class=\"phone-stage\">\n        <div class=\"tap-hint mobile\" id=\"tapHintMobile\" aria-hidden=\"true\">\n          <span class=\"th-pill\"><small>Interactieve demo<\/small>Tik op het scherm om de app te verkennen<\/span>\n          <svg class=\"th-arrow\" viewbox=\"0 0 24 24\" fill=\"none\" aria-hidden=\"true\">\n            <path d=\"M12 4 L12 20 M5 13 L12 20 L19 13\" stroke=\"currentColor\" stroke-width=\"2.4\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\/>\n          <\/svg>\n        <\/div>\n        <div class=\"tap-hint desktop\" id=\"tapHintDesktop\" aria-hidden=\"true\">\n          <span class=\"th-pill\"><small>Interactieve demo<\/small>Tik op het scherm<br>om de app te verkennen<\/span>\n          <svg class=\"th-arrow\" viewbox=\"0 0 104 34\" fill=\"none\" aria-hidden=\"true\">\n            <path d=\"M4 9 C 34 1, 64 20, 94 27\" stroke=\"currentColor\" stroke-width=\"2.6\" fill=\"none\" stroke-linecap=\"round\"\/>\n            <path d=\"M86 20 L 94 27 L 84 30\" stroke=\"currentColor\" stroke-width=\"2.6\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\/>\n          <\/svg>\n        <\/div>\n        <div class=\"phone\" id=\"phone\" role=\"img\" aria-label=\"Aper\u00e7u de l'application Lean avec drilldown du TDEE\">\n          <div class=\"notch\"><\/div>\n          <div class=\"phone-screen\">\n            <button class=\"phone-back\" id=\"phoneBack\" aria-label=\"Terug\">&#8249;<\/button>\n            <div id=\"phoneImg\" class=\"phone-bg tab-depense\" role=\"img\" aria-label=\"Aper\u00e7u Lean, onglet D\u00e9pense\"><\/div>\n            <div class=\"phone-zones\" id=\"phoneZones\">\n              <div class=\"z\" data-sub=\"BMR\"  style=\"top:11%;height:21%\" role=\"button\" tabindex=\"0\" aria-label=\"D\u00e9tail BMR\"><\/div>\n              <div class=\"z\" data-sub=\"NEAT\" style=\"top:33%;height:16%\" role=\"button\" tabindex=\"0\" aria-label=\"D\u00e9tail NEAT\"><\/div>\n              <div class=\"z\" data-sub=\"EAT\"  style=\"top:50%;height:16%\" role=\"button\" tabindex=\"0\" aria-label=\"D\u00e9tail EAT\"><\/div>\n              <div class=\"z\" data-sub=\"TEF\"  style=\"top:67%;height:16%\" role=\"button\" tabindex=\"0\" aria-label=\"D\u00e9tail TEF\"><\/div>\n            <\/div>\n            <div class=\"phone-navbar\" id=\"phoneNav\" aria-hidden=\"false\">\n              <button data-tab=\"bilan\"     type=\"button\" aria-label=\"Onglet Bilan\"><\/button>\n              <button data-tab=\"kcal\"      type=\"button\" aria-label=\"Onglet Calories\"><\/button>\n              <button data-tab=\"depense\"   type=\"button\" aria-label=\"Tabblad Verbruik\"><\/button>\n              <button data-tab=\"strategie\" type=\"button\" aria-label=\"Onglet Strat\u00e9gie\"><\/button>\n            <\/div>\n          <\/div>\n        <\/div>\n        <div class=\"phone-tabs\" role=\"tablist\" aria-label=\"Naviguer dans l'app Lean\">\n          <button data-tab=\"bilan\"     type=\"button\">Balans<\/button>\n          <button data-tab=\"kcal\"      type=\"button\">Calorie\u00ebn<\/button>\n          <button data-tab=\"depense\"   type=\"button\" class=\"on\">Verbruik<\/button>\n          <button data-tab=\"strategie\" type=\"button\">Strategie<\/button>\n        <\/div>\n      <\/div>\n    <\/div>\n  <\/div>\n\n  <div class=\"snippet rev\">\n    <div class=\"lbl\">Snel antwoord<\/div>\n    <p>Het basaal metabolisme (BMR) is de energie die je lichaam in rust verbruikt. Het vertegenwoordigt 60 tot 75&nbsp;% van je totale verbruik (TDEE). De nauwkeurigheid hangt af van de <b>echte vetvrije massa<\/b>, dus van je vetpercentage. Harris-Benedict 1919 en Mifflin-St Jeor 1990 schatten het zonder vetpercentage, met een foutmarge van 200 tot 500&nbsp;kcal\/dag. Lean meet je vetpercentage via de AI BodyScan en past vervolgens een <b>gepatenteerd eigen model<\/b> toe dat je BMR berekent op je echte vetvrije massa. <a href=\"https:\/\/lean-app.com\/nl\/calcul-metabolisme-de-base\/\" style=\"color:var(--pink);text-decoration:underline\">Wil je gewoon je cijfer? Gebruik de speciale calculator.<\/a><\/p>\n  <\/div>\n<\/section>\n\n<main class=\"wrap\">\n\n\n<h2 class=\"sect\"><span class=\"num\">02 &middot; Definitie<\/span>De BMR, de eerste bouwsteen van de TDEE<\/h2>\n\n<div class=\"body\">\n<p id=\"bmr-signification\"><b>BMR staat voor Basal Metabolic Rate<\/b>, in het Nederlands \u00ab&nbsp;basaal metabolisme&nbsp;\u00bb (letterlijk \u00ab&nbsp;basale stofwisselingssnelheid&nbsp;\u00bb). Drie letters voor \u00e9\u00e9n idee: het minimale aantal kcal dat je lichaam elke dag in volledige rust verbrandt, alleen om je in leven te houden.<\/p>\n<p>Le <b>BMR (Basal Metabolic Rate)<\/b>, of basaal metabolisme, is de minimale energie die je lichaam in rust verbrandt om je vitale functies draaiende te houden: ademhaling, bloedsomloop, werking van hersenen, nieren en lever, handhaving van de lichaamstemperatuur. Gemeten nuchter, liggend, in thermische neutraliteit. <b>Het is het vaste verbruik van je organisme, los van wat je overdag doet.<\/b><\/p>\n<p>In de canonieke vergelijking van het totale energieverbruik is de BMR de eerste bouwsteen:<\/p>\n<\/div>\n\n<div class=\"statement\" style=\"margin:28px 0\"><p><b style=\"color:var(--pink);font-variant-numeric:tabular-nums\">TDEE = BMR + NEAT + EAT + TEF<\/b><\/p><\/div>\n\n<div class=\"body\">\n<p>Concreet vertegenwoordigt je BMR <b>60 tot 75&nbsp;%<\/b> van je TDEE bij de meeste volwassenen (de rest is verdeeld over NEAT, EAT en TEF). Het is veruit de grootste verbruikspost. Als je 150&nbsp;kcal naast je BMR zit, is je TDEE 150&nbsp;kcal fout. Je tekort is 150&nbsp;kcal fout. Je cutplan is 150&nbsp;kcal fout. <b>Alles begint daar.<\/b><\/p>\n<p>De metabole adaptatie komt daarna als <b>vermenigvuldigingsco\u00ebffici\u00ebnt van de BMR<\/b> bij een langdurig calorietekort (Lean-conventie: 100&nbsp;% = optimaal, 90&nbsp;% = 10&nbsp;% opgebouwde adaptatie, dus een BMR die 10&nbsp;% lager ligt). Ze komt <b>Stappen<\/b> in de TDEE-som: ze moduleert de BMR.<\/p>\n<\/div>\n\n<div class=\"micro-cta\">\n  Wil je de details van de 4 bouwstenen? <a href=\"https:\/\/lean-app.com\/nl\/calculateur-tdee\/\">Volledige TDEE-calculator<\/a> &middot; <a href=\"https:\/\/lean-app.com\/nl\/neat-depense-non-sportive\/\">NEAT (stappen)<\/a> &middot; <a href=\"https:\/\/lean-app.com\/nl\/eat\/\">EAT (sport)<\/a> &middot; <a href=\"https:\/\/lean-app.com\/nl\/effet-thermique-des-aliments\/\">TEF (vertering)<\/a>.\n<\/div>\n\n<!-- Diagramme TDEE Franck ID 876 \u2014 paysage max-width:580px -->\n<div style=\"margin:36px auto;max-width:580px;text-align:center\">\n  <img src=\"https:\/\/lean-app.com\/wp-content\/uploads\/2025\/08\/diagramme-circulaire-composants-tdee-bmr-neat-eat-tef-1024x680.png\" alt=\"Diagramme circulaire TDEE : BMR 57%, NEAT 27%, EAT 6%, TEF 10%\" width=\"1024\" height=\"680\" style=\"width:100%;height:auto;border-radius:12px;box-shadow:0 4px 20px rgba(0,0,0,0.08)\" loading=\"lazy\" decoding=\"async\">\n  <p style=\"margin:10px 0 0;font-size:13px;color:var(--muted);text-align:center\">Typische verdeling van de TDEE: de BMR vertegenwoordigt 57&nbsp;% van het totale verbruik.<\/p>\n<\/div>\n\n<h2 class=\"sect\"><span class=\"num\">03 &middot; De motoren van de BMR<\/span>Welke organen verbranden wat in rust?<\/h2>\n\n<div class=\"body\">\n<p>Je basaal metabolisme is geen abstract gemiddelde. Het komt overeen met de som van de energiebehoeften van elk orgaan. Dit is de verdeling zoals gemeten in de fysiologische literatuur:<\/p>\n<\/div>\n\n<!-- Tableau organes converti en cards stacked (z\u00e9ro tableau scrollable) -->\n<div style=\"margin:28px 0;display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:12px\">\n  <div style=\"display:flex;align-items:center;justify-content:space-between;padding:14px 18px;background:var(--paper);border-radius:10px;border-left:3px solid var(--pink)\">\n    <span style=\"font-weight:600;color:var(--ink-2)\">Spieren<\/span>\n    <span style=\"font-family:var(--font-mono);font-size:15px;font-weight:700;color:var(--pink)\">30&nbsp;%<\/span>\n  <\/div>\n  <div style=\"display:flex;align-items:center;justify-content:space-between;padding:14px 18px;background:var(--paper);border-radius:10px;border-left:3px solid var(--pink)\">\n    <span style=\"font-weight:600;color:var(--ink-2)\">Lever<\/span>\n    <span style=\"font-family:var(--font-mono);font-size:15px;font-weight:700;color:var(--pink)\">25&nbsp;%<\/span>\n  <\/div>\n  <div style=\"display:flex;align-items:center;justify-content:space-between;padding:14px 18px;background:var(--paper);border-radius:10px;border-left:3px solid var(--pink)\">\n    <span style=\"font-weight:600;color:var(--ink-2)\">Hersenen<\/span>\n    <span style=\"font-family:var(--font-mono);font-size:15px;font-weight:700;color:var(--pink)\">20&nbsp;%<\/span>\n  <\/div>\n  <div style=\"display:flex;align-items:center;justify-content:space-between;padding:14px 18px;background:var(--paper);border-radius:10px;border-left:3px solid #C8A019\">\n    <span style=\"font-weight:600;color:var(--ink-2)\">Hart<\/span>\n    <span style=\"font-family:var(--font-mono);font-size:15px;font-weight:700;color:#C8A019\">10&nbsp;%<\/span>\n  <\/div>\n  <div style=\"display:flex;align-items:center;justify-content:space-between;padding:14px 18px;background:var(--paper);border-radius:10px;border-left:3px solid var(--muted)\">\n    <span style=\"font-weight:600;color:var(--ink-2)\">Nieren<\/span>\n    <span style=\"font-family:var(--font-mono);font-size:15px;font-weight:700;color:var(--muted)\">5&nbsp;%<\/span>\n  <\/div>\n  <div style=\"display:flex;align-items:center;justify-content:space-between;padding:14px 18px;background:var(--paper);border-radius:10px;border-left:3px solid var(--muted)\">\n    <span style=\"font-weight:600;color:var(--ink-2)\">Vetweefsel (vet)<\/span>\n    <span style=\"font-family:var(--font-mono);font-size:15px;font-weight:700;color:var(--muted)\">3&nbsp;%<\/span>\n  <\/div>\n  <div style=\"display:flex;align-items:center;justify-content:space-between;padding:14px 18px;background:var(--paper);border-radius:10px;border-left:3px solid var(--dim)\">\n    <span style=\"font-weight:600;color:var(--ink-2)\">Rest (huid, darmen&hellip;)<\/span>\n    <span style=\"font-family:var(--font-mono);font-size:15px;font-weight:700;color:var(--dim)\">7&nbsp;%<\/span>\n  <\/div>\n<\/div>\n\n<div class=\"body\">\n<p>Wat deze tabel meteen zegt: <b>spieren vertegenwoordigen 30&nbsp;% van de BMR<\/b>, tegenover slechts 3&nbsp;% voor vet. Spiermassa opbouwen verhoogt rechtstreeks je basaal metabolisme. Spier verliezen (bij een slecht uitgevoerde cut) laat het dalen. Het is het meest onderschatte mechanisme in gewichtsbeheer op de lange termijn.<\/p>\n<p>Belangrijk gevolg: een hogere BMR verhoogt indirect je NEAT en je EAT. Concreet voorbeeld: een strongman met een BMR van 1&thinsp;800&nbsp;kcal verbrandt ongeveer 0,08&nbsp;kcal per stap, tegenover 0,02&nbsp;kcal voor een vrouw van 50&nbsp;kg. Dezelfde activiteit geeft een heel ander metabool resultaat, afhankelijk van de vetvrije massa waarmee je begint.<\/p>\n<\/div>\n\n<h2 class=\"sect\"><span class=\"num\">04 &middot; Geschiedenis<\/span>Vier BMR-formules, 105 jaar evolutie<\/h2>\n<p>Vier vergelijkingen domineren al een eeuw de wetenschappelijke literatuur over de berekening van de BMR. Elk beantwoordt aan een tijdperk, een steekproef, een bedoeling. Dit is wat ze echt zeggen en waar hun grenzen liggen.<\/p>\n\n<div class=\"compar-grid\">\n  <div class=\"compar-card\">\n    <h4>Harris-Benedict<\/h4>\n    <div class=\"year\">1919, herzien 1984 &middot; 136 proefpersonen<\/div>\n    <p class=\"desc\">De grote voorouder. Schat de BMR op basis van gewicht, lengte, leeftijd en geslacht. Wordt nog steeds standaard gebruikt door veel online calculators en sommige consumentenapps.<\/p>\n    <p class=\"pros\"><b>+<\/b> Overal geciteerd, vergelijkbaar van calculator tot calculator.<\/p>\n    <p class=\"cons\"><b>&minus;<\/b> Gekalibreerd op een honderd jaar oude populatie. Overschat de BMR met 5 tot 10&nbsp;% bij moderne profielen.<\/p>\n  <\/div>\n\n  <div class=\"compar-card\">\n    <h4>Mifflin-St Jeor<\/h4>\n    <div class=\"year\">1990 &middot; 498 proefpersonen<\/div>\n    <p class=\"desc\">Opnieuw gekalibreerd op een Amerikaanse populatie eind jaren 80. Door klinisch di\u00ebtisten beschouwd als de \u00abmoderne referentie zonder vetpercentage\u00bb. Nauwkeurig tot &plusmn;10&nbsp;% bij het gemiddelde profiel.<\/p>\n    <p class=\"pros\"><b>+<\/b> Nauwkeuriger dan Harris-Benedict bij 70&nbsp;% van de profielen.<\/p>\n    <p class=\"cons\"><b>&minus;<\/b> Houdt geen rekening met het vetpercentage. Foutmarge van 200 tot 400 kcal bij gespierde of zittende profielen.<\/p>\n  <\/div>\n\n  <div class=\"compar-card\">\n    <h4>Vergelijkingen op vetvrije massa<\/h4>\n    <div class=\"year\">Jaren 1980 en later &middot; fysiologische literatuur<\/div>\n    <p class=\"desc\">Familie van vergelijkingen die uitgaan van de <b>vetvrije massa (FFM)<\/b> in plaats van het totale gewicht. Typische publieke vorm: 370 + 21,6 &times; FFM (kg). Wetenschappelijk nauwkeuriger, maar je moet je vetpercentage kennen.<\/p>\n    <p class=\"pros\"><b>+<\/b> Betere nauwkeurigheid bij alle profielen, ook gespierde en zittende.<\/p>\n    <p class=\"cons\"><b>&minus;<\/b> Vereist een precieze meting van het vetpercentage (bio-impedantie, DEXA of AI BodyScan). Historisch weinig toegankelijk.<\/p>\n  <\/div>\n\n  <div class=\"compar-card lean\">\n    <h4>gepatenteerde eigen model van Lean<\/h4>\n    <div class=\"year\">2024 &middot; gekalibreerd op 10&thinsp;000+ gebruikers<\/div>\n    <p class=\"desc\">Steunt op de <b>echte vetvrije massa<\/b> gemeten via AI BodyScan, integreert een functie voor metabole adaptatie bij een tekort, past een fijne leeftijdscorrectie toe en herkalibreert zich week na week via de weging en de BodyScan. <b>Geen papieren formule: een model dat leert van jouw data.<\/b><\/p>\n    <p class=\"pros\"><b>+<\/b> Precisie &plusmn;3&nbsp;% bij gespierde, zittende, menopauzale en postnatale profielen. Continue herkalibratie.<\/p>\n    <p class=\"cons\"><b>&minus;<\/b> Vereist een initi\u00eble AI BodyScan (5 seconden, gratis in Lean) en regelmatige gewichtsgegevens.<\/p>\n  <\/div>\n<\/div>\n\n<h2 class=\"sect\"><span class=\"num\">05 &middot; De hefboom<\/span>Waarom het vetpercentage alles verandert aan de BMR<\/h2>\n\n<div class=\"statement\"><p>Twee mannen van 80&nbsp;kg hebben niet dezelfde BMR. <span class=\"accent\">Spier verbrandt in rust 3 keer meer dan vet.<\/span><\/p><\/div>\n\n<div class=\"body\">\n<p>De vetvrije massa (organen + spieren + botten + water) is de metabole motor. De vetmassa is energetisch bijna inert. Concreet: <b>1&nbsp;kg spier verbrandt in rust ongeveer 13&nbsp;kcal\/dag, 1&nbsp;kg vet ongeveer 4&nbsp;kcal\/dag<\/b> (Heymsfield, M\u00fcller, Hall). De verhouding is 3 tegen 1.<\/p>\n<p>Neem twee mannen van 80&nbsp;kg en 180&nbsp;cm. De eerste zit op 12&nbsp;% vet (sportief, vetvrije massa 70,4&nbsp;kg). De tweede op 28&nbsp;% (zittend, vetvrije massa 57,6&nbsp;kg). Bij een BMR berekend via een vergelijking op vetvrije massa is het verschil in de orde van <b>275 kcal\/dag<\/b>. Mifflin-St Jeor geeft hun nochtans hetzelfde cijfer: 1&thinsp;780 kcal. Dat is de structurele fout die maandenlang onopgemerkt blijft tijdens een mislukte cut.<\/p>\n<p>Erger nog: bij een langdurig tekort daalt je BMR niet alleen omdat je minder weegt (Hall 2008, M\u00fcller 2015). Hij daalt ook omdat je lichaam een <b>metabole adaptatie<\/b> activeert: 5 tot 25&nbsp;% minder, afhankelijk van het tekort en de duur ervan. Zonder vetpercentage EN zonder gemodelleerde adaptatie vaar je blind.<\/p>\n<\/div>\n\n<!-- BodyScan r\u00e9sultat bodyfat 11% homme \u2014 ID 808, portrait max-width:220px -->\n<div class=\"bodyscan-illust\" style=\"margin:40px auto 8px;display:flex;flex-direction:column;align-items:center;gap:14px;max-width:220px\">\n  <img src=\"https:\/\/lean-app.com\/wp-content\/uploads\/2025\/07\/resultat-bodyfat-ia-homme-lean-app-1-514x1024.png\" alt=\"r\u00e9sultat bodyfat IA homme Lean, taux 11%\" width=\"514\" height=\"1024\" style=\"width:100%;height:auto;border-radius:24px;box-shadow:0 8px 32px rgba(0,0,0,0.15)\" loading=\"lazy\" decoding=\"async\">\n  <p class=\"bodyscan-cap\" style=\"max-width:220px;font-size:13px;line-height:1.5;text-align:center\"><b>AI BodyScan<\/b> : resultaat vetpercentage 11&nbsp;%, nauwkeurig tot op 2&nbsp;%. Foto, 5 seconden.<\/p>\n<\/div>\n\n<div class=\"body\">\n<p>De wetenschappelijke aanpak om een nauwkeurigere BMR te berekenen als je het vetpercentage hebt, steunt op de <b>vetvrije massa (FFM, Fat-Free Mass)<\/b>. De publieke vorm van deze vergelijking, sinds de jaren 80 geciteerd in de fysiologische literatuur, geeft ongeveer 370 + 21,6 &times; vetvrije massa (kg). Het <b>gepatenteerde eigen model van Lean<\/b> gaat verder: het integreert een functie voor metabole adaptatie, het lichaamswater, het glycogeen, en herkalibreert zich via de AI BodyScan bij elke weging.<\/p>\n<\/div>\n\n<div class=\"micro-cta\">\n  Wil je de 3 formules vergelijken op je eigen cijfers? <a href=\"https:\/\/lean-app.com\/nl\/calcul-metabolisme-de-base\/\">Gebruik de Lean-calculator voor basaal metabolisme<\/a> (Harris-Benedict, Mifflin-St Jeor, aanpak op vetvrije massa).\n<\/div>\n\n<h2 class=\"sect\"><span class=\"num\">06 &middot; Drie profielen, drie waarheden<\/span>Het verschil Mifflin tegenover Lean groeit met je samenstelling<\/h2>\n<p>Drie mannen met verschillende lichaamstypes, vergeleken berekeningen. De cijfers komen van de drie formules op 80&nbsp;kg \/ 180&nbsp;cm \/ 32&nbsp;jaar, met alleen het vetpercentage aangepast. Je ziet meteen waar Harris-Benedict en Mifflin-St Jeor zich vergissen.<\/p>\n\n<div class=\"profile-grid\">\n  <div class=\"profile-card\">\n    <h4>Sportief profiel<\/h4>\n    <div class=\"meta\">32 jaar &middot; 80&nbsp;kg &middot; 180&nbsp;cm &middot; 12&nbsp;% vet &middot; vetvrije massa 70,4&nbsp;kg<\/div>\n    <div class=\"rows\">\n      <div class=\"rw\"><span>Harris-Benedict 1919<\/span><span class=\"v\">1&thinsp;855 kcal<\/span><\/div>\n      <div class=\"rw\"><span>Mifflin-St Jeor 1990<\/span><span class=\"v\">1&thinsp;780 kcal<\/span><\/div>\n      <div class=\"rw lean\"><span>Lean-aanpak (vetvrije massa)<\/span><span class=\"v\">1&thinsp;873 kcal<\/span><\/div>\n    <\/div>\n    <div class=\"delta\">Verschil Lean vs Mifflin: <b style=\"color:var(--pink)\">+93 kcal\/dag<\/b>. Over 90 dagen is dat bijna 10&thinsp;000 kcal \u00abvergeten\u00bb door de klassieke formules.<\/div>\n  <\/div>\n\n  <div class=\"profile-card\">\n    <h4>Gemiddeld profiel<\/h4>\n    <div class=\"meta\">32 jaar &middot; 80&nbsp;kg &middot; 180&nbsp;cm &middot; 20&nbsp;% vet &middot; vetvrije massa 64&nbsp;kg<\/div>\n    <div class=\"rows\">\n      <div class=\"rw\"><span>Harris-Benedict 1919<\/span><span class=\"v\">1&thinsp;855 kcal<\/span><\/div>\n      <div class=\"rw\"><span>Mifflin-St Jeor 1990<\/span><span class=\"v\">1&thinsp;780 kcal<\/span><\/div>\n      <div class=\"rw lean\"><span>Lean-aanpak (vetvrije massa)<\/span><span class=\"v\">1&thinsp;735 kcal<\/span><\/div>\n    <\/div>\n    <div class=\"delta\">Verschil Lean vs Mifflin: <b style=\"color:var(--pink)\">&minus;45 kcal\/dag<\/b>. Bij dit gemiddelde profiel klopt Mifflin goed (het is het profiel waarop de formule in 1990 is gekalibreerd). Elke afwijking van dat profiel vergroot de fout.<\/div>\n  <\/div>\n\n  <div class=\"profile-card\">\n    <h4>Zittend profiel<\/h4>\n    <div class=\"meta\">32 jaar &middot; 80&nbsp;kg &middot; 180&nbsp;cm &middot; 28&nbsp;% vet &middot; vetvrije massa 57,6&nbsp;kg<\/div>\n    <div class=\"rows\">\n      <div class=\"rw\"><span>Harris-Benedict 1919<\/span><span class=\"v\">1&thinsp;855 kcal<\/span><\/div>\n      <div class=\"rw\"><span>Mifflin-St Jeor 1990<\/span><span class=\"v\">1&thinsp;780 kcal<\/span><\/div>\n      <div class=\"rw lean\"><span>Lean-aanpak (vetvrije massa)<\/span><span class=\"v\">1&thinsp;597 kcal<\/span><\/div>\n    <\/div>\n    <div class=\"delta\">Verschil Lean vs Mifflin: <b style=\"color:var(--pink)\">&minus;183 kcal\/dag<\/b>. Mifflin overschat zijn BMR met 166 kcal. Dat is precies waarom zoveel profielen met overgewicht \u00abniet afvallen ondanks het berekende tekort\u00bb.<\/div>\n  <\/div>\n<\/div>\n\n<h2 class=\"sect\"><span class=\"num\">07 &middot; De Lean-motor<\/span>Hoe Lean je BMR berekent (gepatenteerd eigen model)<\/h2>\n\n<div class=\"body\">\n<p>Lean gebruikt een gepatenteerd eigen model om je BMR te berekenen. De belangrijkste invoer is niet je gewicht: het is je <b>echte vetvrije massa<\/b>, afgeleid van je vetpercentage gemeten via de AI BodyScan. De vetmassa wordt genegeerd in de berekening van de metabole motor, omdat ze metabool inert is.<\/p>\n<p>Vier pijlers van het Lean-model:<\/p>\n<ol style=\"margin:14px 0 14px 22px;padding:0;line-height:1.7\">\n  <li><b>AI BodyScan<\/b> : foto, 5 seconden, nauwkeurigheid van DEXA-niveau over 10&thinsp;000+ gebruikers. Lean leidt daaruit je echte vetvrije massa af.<\/li>\n  <li><b>Mod\u00e8le propri\u00e9taire brevet\u00e9<\/b> : past op je vetvrije massa een functie toe die een fijne leeftijdscorrectie, het lichaamswater en het glycogeen integreert. Geen papieren formule: een model dat leert van jouw data.<\/li>\n  <li><b>Gemodelleerde metabole adaptatie<\/b> : conventie 100&nbsp;% = optimaal, 90&nbsp;% = 10&nbsp;% adaptatie. De co\u00ebffici\u00ebnt moduleert de BMR bij een langdurig tekort (nooit opgeteld in de TDEE-som).<\/li>\n  <li><b>Continue herkalibratie<\/b> : bij elke weging, bij elke BodyScan wordt de BMR opnieuw berekend. Je doet de berekening niet eens en voor altijd: hij leeft met je mee.<\/li>\n<\/ol>\n<p>Lean gebruikt ook het <b>gemiddelde gewicht van de laatste 7 dagen<\/b> (en niet het gewicht van de dag) om schommelingen in water en glycogeen glad te strijken. Zo voorkom je dat een zoute maaltijd de avond ervoor je BMR kunstmatig laat springen of dalen.<\/p>\n<p>Daarom weigert Lean je een caloriedoel te geven zolang je AI BodyScan niet is gedaan. Niet uit gril. Uit consistentie: zonder vetpercentage is de BMR een statistisch gemiddelde. M\u00e9t is het jouw BMR.<\/p>\n<\/div>\n\n<!-- Focus BMR \u00e9cran Lean \u2014 ID 832, portrait max-width:220px -->\n<div class=\"bodyscan-illust\" style=\"margin:40px auto 8px;display:flex;flex-direction:column;align-items:center;gap:14px;max-width:220px\">\n  <img src=\"https:\/\/lean-app.com\/wp-content\/uploads\/2025\/07\/focus-depense-metabolisme-bmr-lean-app-512x1024.png\" alt=\"Focus d\u00e9pense BMR dans l'application Lean\" width=\"512\" height=\"1024\" style=\"width:100%;height:auto;border-radius:24px;box-shadow:0 8px 32px rgba(0,0,0,0.15)\" loading=\"lazy\" decoding=\"async\">\n  <p class=\"bodyscan-cap\" style=\"max-width:220px;font-size:13px;line-height:1.5;text-align:center\"><b>BMR Lean<\/b> : berekend op je echte vetvrije massa, opnieuw gekalibreerd bij elke weging.<\/p>\n<\/div>\n\n<div class=\"micro-cta\">\n  Wil je je echte BMR op je echte vetpercentage? <a href=\"https:\/\/apps.apple.com\/fr\/app\/lean-calorie-ai-podometre\/id6738668646?utm_source=seo&#038;utm_medium=blog&#038;utm_campaign=pillar-bmr\" target=\"_blank\" rel=\"noopener\">Installeer Lean<\/a> en doe je eerste BodyScan in 5 seconden. Zonder papieren formule.\n<\/div>\n\n<h2 class=\"sect\"><span class=\"num\">08 &middot; AI BodyScan<\/span>Het vetpercentage meten in 5 seconden voor een nauwkeurige BMR<\/h2>\n\n<div class=\"body\">\n<p>Zonder echt vetpercentage is zelfs de beste vergelijking op vetvrije massa nutteloos. Lean lost dit probleem op met de <b>AI BodyScan<\/b> : een foto van voren, 5 seconden verwerking, nauwkeurigheid in de orde van 2 punten vetpercentage. Geen extern apparaat, geen impedantieweging, geen DEXA-sessie.<\/p>\n<\/div>\n\n<!-- BodyScan homme seul \u2014 centr\u00e9 -->\n<div style=\"margin:32px auto;max-width:220px;text-align:center\">\n  <video src=\"https:\/\/lean-app.com\/wp-content\/uploads\/2025\/07\/scan-corporel-bodyfat-ia-homme-lean-app.mp4\" autoplay muted loop playsinline style=\"width:100%;border-radius:18px;box-shadow:0 6px 24px rgba(0,0,0,0.12)\" aria-label=\"D\u00e9monstration BodyScan IA homme\"><\/video>\n  <p style=\"margin:8px 0 0;font-size:12px;color:var(--muted)\">BodyScan man<\/p>\n<\/div>\n\n\n<div class=\"body\">\n<p><b>Optimale omstandigheden voor een nauwkeurige BodyScan:<\/b><\/p>\n<ul style=\"margin:10px 0 10px 22px;padding:0;line-height:1.8\">\n  <li>Natuurlijk licht of diffuus licht, geen slagschaduw op het lichaam<\/li>\n  <li>Normale ademhaling, buik niet intrekken, buikspieren niet aanspannen<\/li>\n  <li>Dezelfde omstandigheden bij elke scan (zelfde tijdstip, zelfde licht, zelfde camera-afstand)<\/li>\n  <li>Niet direct na een training (spierpomp vervalst de meting)<\/li>\n  <li>Camera-afstand: ongeveer 2 meter, hele lichaam in beeld<\/li>\n<\/ul>\n<\/div>\n\n<h2 class=\"sect\"><span class=\"num\">09 &middot; Metabole adaptatie<\/span>Het 5e onderdeel dat alles moduleert<\/h2>\n\n<div class=\"body\">\n<p>De metabole adaptatie zit niet in de TDEE-som. Het is een <b>vermenigvuldigingsco\u00ebffici\u00ebnt van de BMR<\/b> die in werking treedt bij een langdurig calorietekort. Lean-conventie:<\/p>\n<ul style=\"margin:10px 0 14px 22px;padding:0;line-height:1.8\">\n  <li><b>100&nbsp;%<\/b> : geen adaptatie, optimale BMR<\/li>\n  <li><b>90 tot 98&nbsp;%<\/b> : lichte tot matige adaptatie, BMR 2 tot 10&nbsp;% lager<\/li>\n  <li><b>Onder 90&nbsp;%<\/b> : terugkeer naar onderhoud aanbevolen (diet break of onderhoudsweek)<\/li>\n<\/ul>\n<p>Dit fenomeen, gemeten door Hall (2008) en M\u00fcller (2015), verklaart de plateaus tijdens een cut. Je lichaam \u00abverzet\u00bb zich niet op magische wijze tegen gewichtsverlies: het verlaagt gewoon zijn BMR om het tekort te compenseren. Zonder modellering van deze co\u00ebffici\u00ebnt wordt je berekende TDEE week na week optimistischer.<\/p>\n<\/div>\n\n<!-- Graphique adaptation m\u00e9tabolique TDEE r\u00e9elle vs calcul\u00e9e \u2014 ID 778, paysage max-width:580px -->\n<div style=\"margin:36px auto;max-width:580px;text-align:center\">\n  <img src=\"https:\/\/lean-app.com\/wp-content\/uploads\/2025\/07\/graphique-adaptation-metabolique-tdee-reelle-calculee-1024x558.jpeg\" alt=\"Graphique adaptation m\u00e9tabolique : TDEE r\u00e9elle vs TDEE calcul\u00e9e sur une s\u00e8che longue\" width=\"1024\" height=\"558\" style=\"width:100%;height:auto;border-radius:12px;box-shadow:0 4px 20px rgba(0,0,0,0.08)\" loading=\"lazy\" decoding=\"async\">\n  <p style=\"margin:10px 0 0;font-size:13px;color:var(--muted);text-align:center\">Echte (gemeten) TDEE vs berekende TDEE zonder adaptatie. Het verschil groeit na 4 tot 6 weken tekort.<\/p>\n<\/div>\n\n<!-- Suivi BMR adaptation paysage \u2014 ID 861, max-width:500px -->\n<div style=\"margin:32px auto;max-width:500px;text-align:center\">\n  <img src=\"https:\/\/lean-app.com\/wp-content\/uploads\/2025\/08\/suivi-bmr-adaptation-metabolique-lean-app-1024x432.png\" alt=\"Suivi BMR et adaptation m\u00e9tabolique dans l'application Lean, 1767 kcal\" width=\"1024\" height=\"432\" style=\"width:100%;height:auto;border-radius:12px;box-shadow:0 4px 20px rgba(0,0,0,0.08)\" loading=\"lazy\" decoding=\"async\">\n  <p style=\"margin:10px 0 0;font-size:13px;color:var(--muted);text-align:center\">Wekelijkse BMR-opvolging met co\u00ebffici\u00ebnt voor metabole adaptatie in Lean.<\/p>\n<\/div>\n\n<div class=\"micro-cta\">\n  Lean is de <b>eerste app ter wereld<\/b> die de metabole adaptatie in realtime modelleert. <a href=\"https:\/\/apps.apple.com\/fr\/app\/lean-calorie-ai-podometre\/id6738668646?utm_source=seo&#038;utm_medium=blog&#038;utm_campaign=pillar-bmr\" target=\"_blank\" rel=\"noopener\">Download Lean<\/a>.\n<\/div>\n\n<h2 class=\"sect\"><span class=\"num\">10 &middot; BMR-opvolging in Lean<\/span>Trendanalyse, gewicht over 7 dagen, continu vetpercentage<\/h2>\n\n<div class=\"body\">\n<p>Lean berekent je BMR niet eens en voor altijd. Hij wordt bijgewerkt bij elke weging en elke BodyScan, met drie speciale schermen:<\/p>\n<\/div>\n\n<!-- Analyse tendance BMR \u2014 ID 760, portrait max-width:220px -->\n<div class=\"bodyscan-illust\" style=\"margin:36px auto 8px;display:flex;flex-direction:column;align-items:center;gap:14px;max-width:220px\">\n  <img src=\"https:\/\/lean-app.com\/wp-content\/uploads\/2025\/07\/analyse-tendance-metabolisme-base-bmr-lean-app-512x1024.png\" alt=\"Analyse tendance BMR hebdomadaire dans l'application Lean\" width=\"512\" height=\"1024\" style=\"width:100%;height:auto;border-radius:24px;box-shadow:0 8px 32px rgba(0,0,0,0.15)\" loading=\"lazy\" decoding=\"async\">\n  <p class=\"bodyscan-cap\" style=\"max-width:220px;font-size:13px;line-height:1.5;text-align:center\"><b>BMR-trend<\/b> : wekelijkse grafiek, je ziet de adaptatie zich in realtime vormen.<\/p>\n<\/div>\n\n\n<div class=\"body\">\n<p>De dagelijkse weging in Lean gebruikt het <b>voortschrijdend gemiddelde van de laatste 7 dagen<\/b> om de natuurlijke schommelingen in water en glycogeen glad te strijken. Een variatie van 1 tot 2&nbsp;kg van de ene dag op de andere is normaal en weerspiegelt niet de echte lichaamssamenstelling. Dat gemiddelde voedt de herberekening van de BMR, niet het ruwe ochtendgewicht.<\/p>\n<\/div>\n\n<!-- Poids 2 colonnes: saisie + suivi bodyfat -->\n<div style=\"margin:36px auto;display:grid;grid-template-columns:1fr 1fr;gap:16px;max-width:480px\">\n  <div style=\"text-align:center\">\n    <img src=\"https:\/\/lean-app.com\/wp-content\/uploads\/2025\/07\/saisir-poids-journalier-calendrier-lean-app-510x1024.png\" alt=\"Saisir poids journalier avec calendrier dans l'application Lean\" width=\"510\" height=\"1024\" style=\"width:100%;height:auto;border-radius:20px;box-shadow:0 6px 24px rgba(0,0,0,0.12)\" loading=\"lazy\" decoding=\"async\">\n    <p style=\"margin:8px 0 0;font-size:12px;color:var(--muted)\">Automatisch 7-daags gemiddelde<\/p>\n  <\/div>\n  <div style=\"text-align:center\">\n    <img src=\"https:\/\/lean-app.com\/wp-content\/uploads\/2025\/07\/suivi-evolution-poids-bodyfat-lean-app-512x1024.png\" alt=\"Suivi \u00e9volution poids et bodyfat dans l'application Lean\" width=\"512\" height=\"1024\" style=\"width:100%;height:auto;border-radius:20px;box-shadow:0 6px 24px rgba(0,0,0,0.12)\" loading=\"lazy\" decoding=\"async\">\n    <p style=\"margin:8px 0 0;font-size:12px;color:var(--muted)\">Gewicht + vetpercentage: vet of spier?<\/p>\n  <\/div>\n<\/div>\n\n<h2 class=\"sect\"><span class=\"num\">11 &middot; Volledige TDEE<\/span>Totaal calorieverbruik vanaf je BMR<\/h2>\n\n<div class=\"body\">\n<p>Zodra je BMR nauwkeurig is, komen de drie andere componenten van de TDEE erbovenop:<\/p>\n<ul style=\"margin:10px 0 14px 22px;padding:0;line-height:1.8\">\n  <li><b>NEAT<\/b> (Non-Exercise Activity Thermogenesis): je stappen en activiteiten buiten de sport. Lean meet het via de ingebouwde stappenteller.<\/li>\n  <li><b>EAT<\/b> (Exercise Activity Thermogenesis): je getrackte trainingen. Lean laat je de intensiteit en het type training registreren voor een nauwkeurige berekening.<\/li>\n  <li><b>TEF<\/b> (Thermic Effect of Food): de energie die je verbruikt om te verteren. Automatisch berekend op basis van de ingevoerde macro&rsquo;s.<\/li>\n<\/ul>\n<\/div>\n\n<!-- TDEE 2 colonnes: analyse + s\u00e9ance -->\n<div style=\"margin:36px auto;display:grid;grid-template-columns:1fr 1fr;gap:16px;max-width:480px\">\n  <div style=\"text-align:center\">\n    <img src=\"https:\/\/lean-app.com\/wp-content\/uploads\/2025\/07\/analyse-depense-calorique-tdee-lean-app-514x1024.png\" alt=\"Analyse d\u00e9pense calorique TDEE dans l'application Lean\" width=\"514\" height=\"1024\" style=\"width:100%;height:auto;border-radius:20px;box-shadow:0 6px 24px rgba(0,0,0,0.12)\" loading=\"lazy\" decoding=\"async\">\n    <p style=\"margin:8px 0 0;font-size:12px;color:var(--muted)\">TDEE = BMR + NEAT + EAT + TEF in realtime<\/p>\n  <\/div>\n  <div style=\"text-align:center\">\n    <img src=\"https:\/\/lean-app.com\/wp-content\/uploads\/2025\/07\/enregistrer-seance-musculation-intensite-lean-app-520x1024.png\" alt=\"Enregistrer s\u00e9ance musculation avec intensit\u00e9 dans l'application Lean\" width=\"520\" height=\"1024\" style=\"width:100%;height:auto;border-radius:20px;box-shadow:0 6px 24px rgba(0,0,0,0.12)\" loading=\"lazy\" decoding=\"async\">\n    <p style=\"margin:8px 0 0;font-size:12px;color:var(--muted)\">Krachttraining: intensiteit \u2192 nauwkeurige EAT<\/p>\n  <\/div>\n<\/div>\n\n<h2 class=\"sect\"><span class=\"num\">12 &middot; Strategie\u00ebn<\/span>BMR en aanvalsplan volgens je doel<\/h2>\n<p>Zodra je nauwkeurige BMR bekend is, is de praktische toepassing direct. Drie gevallen, drie rekenkundige hefbomen.<\/p>\n\n<div class=\"profile-grid\">\n  <div class=\"profile-card\">\n    <h4>Cut (vetverlies)<\/h4>\n    <div class=\"meta\">Doel: matig calorietekort, spierbehoud<\/div>\n    <div class=\"rows\">\n      <div class=\"rw\"><span>Doelinname<\/span><span class=\"v\">TDEE &minus; 20&nbsp;%<\/span><\/div>\n      <div class=\"rw\"><span>Adaptatie in de gaten houden<\/span><span class=\"v\">5 tot 15&nbsp;% van de BMR<\/span><\/div>\n      <div class=\"rw lean\"><span>Lean-herkalibratie<\/span><span class=\"v\">Wekelijks (weging + BodyScan)<\/span><\/div>\n    <\/div>\n    <div class=\"delta\">Het tekort dat MyFitnessPal toont op basis van Mifflin zonder vetpercentage kan er <b style=\"color:var(--pink)\">200 tot 400 kcal\/dag<\/b>naast zitten. Gedetailleerde tool: <a href=\"https:\/\/lean-app.com\/nl\/calculateur-deficit-calorique\/\" style=\"text-decoration:underline\">calculator voor calorietekort<\/a>.<\/div>\n  <\/div>\n\n  <div class=\"profile-card\">\n    <h4>Bulk (spieropbouw)<\/h4>\n    <div class=\"meta\">Doel: gecontroleerd overschot, minimale vettoename<\/div>\n    <div class=\"rows\">\n      <div class=\"rw\"><span>Doelinname<\/span><span class=\"v\">TDEE + 10 tot 15&nbsp;%<\/span><\/div>\n      <div class=\"rw\"><span>Risico zonder nauwkeurige BMR<\/span><span class=\"v\">Overmatig overschot (onnodig vet)<\/span><\/div>\n      <div class=\"rw lean\"><span>Lean-herkalibratie<\/span><span class=\"v\">Wekelijks (controle vetvrije massa)<\/span><\/div>\n    <\/div>\n    <div class=\"delta\">Een schone bulk vereist dat je de gewonnen vetvrije massa scheidt van de vetmassa. De wekelijkse AI BodyScan van Lean laat het je zien, zonder medische beeldvorming.<\/div>\n  <\/div>\n\n  <div class=\"profile-card\">\n    <h4>Onderhoud \/ recomp<\/h4>\n    <div class=\"meta\">Doel: samenstelling verbetert bij stabiel gewicht<\/div>\n    <div class=\"rows\">\n      <div class=\"rw\"><span>Doelinname<\/span><span class=\"v\">TDEE &plusmn; 0<\/span><\/div>\n      <div class=\"rw\"><span>Belangrijkste opvolging<\/span><span class=\"v\">Vetpercentage &darr;, vetvrije massa &uarr;<\/span><\/div>\n      <div class=\"rw lean\"><span>Lean-herkalibratie<\/span><span class=\"v\">Dagelijks, live balans<\/span><\/div>\n    <\/div>\n    <div class=\"delta\">Lichaamsrecompositie zie je niet op de weegschaal. Je ziet het aan het vetpercentage. Zonder BodyScan ben je blind.<\/div>\n  <\/div>\n<\/div>\n\n\n<h2 class=\"sect\"><span class=\"num\">13 &middot; Tutorials<\/span>Hoe je Lean gebruikt voor je BMR<\/h2>\n\n<div class=\"body\">\n<p>Twee video&rsquo;s om concreet te beginnen:<\/p>\n<\/div>\n\n<div style=\"margin:28px 0;display:flex;flex-direction:column;gap:20px\">\n  <div>\n    <div class=\"yt-facade\" role=\"button\" tabindex=\"0\" data-vid=\"f6mZfW1sxqw\" data-t=\"COMMENT COMPTER SES CALORIES AVEC LEAN !\" aria-label=\"Lire la vid\u00e9o : COMMENT COMPTER SES CALORIES AVEC LEAN !\" style=\"position:relative;width:100%;max-width:600px;aspect-ratio:16\/9;border-radius:12px;display:block;margin:0 auto;cursor:pointer;background:#000 url('https:\/\/i.ytimg.com\/vi\/f6mZfW1sxqw\/hqdefault.jpg') center\/cover no-repeat\" onclick=\"var f=document.createElement('iframe');f.width='100%';f.style.cssText='max-width:600px;aspect-ratio:16\/9;border:none;border-radius:12px;display:block;margin:0 auto';f.src='https:\/\/www.youtube.com\/embed\/'+this.dataset.vid+'?autoplay=1';f.allow='autoplay; encrypted-media';f.allowFullscreen=true;f.title=this.dataset.t;this.replaceWith(f)\"><span style=\"position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:68px;height:48px;background:rgba(255,45,110,.95);border-radius:14px;display:flex;align-items:center;justify-content:center;box-shadow:0 8px 24px rgba(0,0,0,.35)\"><span style=\"width:0;height:0;border-style:solid;border-width:10px 0 10px 17px;border-color:transparent transparent transparent #fff;display:block;margin-left:3px\"><\/span><\/span><\/div>\n    <p style=\"margin:10px 0 0;font-size:13px;color:var(--muted);text-align:center\">Volledige tutorial: calorie\u00ebn tellen met Lean, van A tot Z.<\/p>\n  <\/div>\n  <div>\n    <div class=\"yt-facade\" role=\"button\" tabindex=\"0\" data-vid=\"wtg6vKi-IhM\" data-t=\"Comment j'ai DOUBL\u00c9 ma d\u00e9pense calorique pour PERDRE DU GRAS\" aria-label=\"Lire la vid\u00e9o : Comment j'ai DOUBL\u00c9 ma d\u00e9pense calorique pour PERDRE DU GRAS\" style=\"position:relative;width:100%;max-width:600px;aspect-ratio:16\/9;border-radius:12px;display:block;margin:0 auto;cursor:pointer;background:#000 url('https:\/\/i.ytimg.com\/vi\/wtg6vKi-IhM\/hqdefault.jpg') center\/cover no-repeat\" onclick=\"var f=document.createElement('iframe');f.width='100%';f.style.cssText='max-width:600px;aspect-ratio:16\/9;border:none;border-radius:12px;display:block;margin:0 auto';f.src='https:\/\/www.youtube.com\/embed\/'+this.dataset.vid+'?autoplay=1';f.allow='autoplay; encrypted-media';f.allowFullscreen=true;f.title=this.dataset.t;this.replaceWith(f)\"><span style=\"position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:68px;height:48px;background:rgba(255,45,110,.95);border-radius:14px;display:flex;align-items:center;justify-content:center;box-shadow:0 8px 24px rgba(0,0,0,.35)\"><span style=\"width:0;height:0;border-style:solid;border-width:10px 0 10px 17px;border-color:transparent transparent transparent #fff;display:block;margin-left:3px\"><\/span><\/span><\/div>\n    <p style=\"margin:10px 0 0;font-size:13px;color:var(--muted);text-align:center\">Hoe je je calorieverbruik verdubbelt door elk onderdeel van de TDEE te optimaliseren.<\/p>\n  <\/div>\n<\/div>\n\n<h2 class=\"sect\"><span class=\"num\">14 &middot; De piramide<\/span>De BMR als fundament van de Lean-Progressiepiramide<\/h2>\n\n<div class=\"body\">\n<p>In de Lean-filosofie is de BMR niet de top van het aanvalsplan, het is het <b>fundament<\/b>. De <b>Progressiepiramide<\/b> rangschikt wat echt telt voor een geslaagde cut: therapietrouw &gt; caloriedoel &gt; stappen. En achter het caloriedoel zit je TDEE, dus je BMR.<\/p>\n<p>Zolang je BMR fout is, is het hele plan fout. Daarom weigert Lean een doel te geven zonder AI BodyScan. En daarom is je BMR herberekenen bij elke weging (dus continu) de enige manier om het plateau te vermijden.<\/p>\n<\/div>\n\n<div class=\"pyramid\" aria-label=\"Lean-Progressiepiramide\">\n  <div class=\"level l1\"><span>Therapietrouw<\/span><span class=\"k\">Basis<\/span><\/div>\n  <div class=\"level l2\"><span>Caloriedoel (nauwkeurige BMR)<\/span><span class=\"k\">Verdieping 2<\/span><\/div>\n  <div class=\"level l3\"><span>Stappen \/ dagelijkse NEAT<\/span><span class=\"k\">Verdieping 3<\/span><\/div>\n  <div class=\"level l4\"><span>Macronutri\u00ebnten<\/span><span class=\"k\">Top<\/span><\/div>\n<\/div>\n<div class=\"pyramid-cap\">Sla geen stappen over. Een nauwkeurige BMR op echt vetpercentage is verdieping 2 \u2014 maar als je niet regelmatig trackt, heeft het geen zin om je macro&rsquo;s tot op de procent te optimaliseren.<\/div>\n\n<h2 class=\"sect\"><span class=\"num\">15 &middot; FAQ<\/span>Alles wat je je afvraagt over het basaal metabolisme<\/h2>\n\n<details class=\"faq\"><summary>Wat betekent BMR?<\/summary><div class=\"faq-body\"><p>BMR is de afkorting van Basal Metabolic Rate, \u00ab&nbsp;basaal metabolisme&nbsp;\u00bb in het Nederlands. Het duidt de minimale energie aan, in kcal per dag, die je organisme in volledige rust verbruikt om zijn vitale functies te verzekeren. Het is de eerste bouwsteen van de vergelijking TDEE&nbsp;= BMR&nbsp;+ NEAT&nbsp;+ EAT&nbsp;+ TEF.<\/p><\/div><\/details>\n\n<details class=\"faq\"><summary>Wat is het basaal metabolisme?<\/summary><div class=\"faq-body\"><p>Het basaal metabolisme, of BMR (Basal Metabolic Rate), is de minimale energie die je lichaam in rust verbrandt om zijn vitale functies draaiende te houden (hart, hersenen, nieren, lever, ademhaling, temperatuurhandhaving). Het wordt gemeten nuchter, liggend, in thermische neutraliteit. Het vertegenwoordigt 60 tot 75&nbsp;% van je totale verbruik (TDEE) bij de meeste volwassenen.<\/p><\/div><\/details>\n\n<details class=\"faq\"><summary>Hoe wordt de BMR precies berekend?<\/summary><div class=\"faq-body\"><p>Er bestaan vier families van vergelijkingen. Harris-Benedict 1919 en Mifflin-St Jeor 1990 rekenen op basis van gewicht, lengte, leeftijd en geslacht (snel maar onnauwkeurig bij gespierde of zittende profielen). De vergelijkingen op vetvrije massa (publieke vorm 370 + 21,6 &times; FFM) rekenen op basis van de echte vetvrije massa (nauwkeuriger, maar vereisen het vetpercentage). Het gepatenteerde eigen model van Lean gaat uit van de echte vetvrije massa gemeten via AI BodyScan, integreert de metabole adaptatie en herkalibreert zich week na week.<\/p><\/div><\/details>\n\n<details class=\"faq\"><summary>Wat is de nauwkeurigste formule voor de BMR?<\/summary><div class=\"faq-body\"><p>De nauwkeurigste formule is die welke uitgaat van de echte vetvrije massa. Zonder vetpercentage blijft Mifflin-St Jeor 1990 de beste publieke benadering (&plusmn;10 % bij 70 % van de profielen). Met vetpercentage is een vergelijking op vetvrije massa van het type 370 + 21,6 &times; FFM nauwkeuriger. Het gepatenteerde eigen model van Lean verfijnt dit nog door de metabole adaptatie en de continue herkalibratie te integreren.<\/p><\/div><\/details>\n\n<details class=\"faq\"><summary>Welk theoretisch model gebruikt Lean voor de BMR?<\/summary><div class=\"faq-body\"><p>Lean gebruikt een eigen model, ontwikkeld door het R&amp;D-team van Lean en gepatenteerd in 2024. Het steunt noch op Harris-Benedict 1919, noch op Mifflin-St Jeor 1990: het rekent vanaf de echte vetvrije massa gemeten via AI BodyScan, met een fijne leeftijdscorrectie, een modellering van het lichaamswater en het glycogeen, en een co\u00ebffici\u00ebnt voor metabole adaptatie. Het model herkalibreert zich continu bij elke weging en elke BodyScan.<\/p><\/div><\/details>\n\n<details class=\"faq\"><summary>Waarom daalt mijn BMR als ik gewicht verlies?<\/summary><div class=\"faq-body\"><p>Om twee redenen. Eerste, fysieke reden: je weegt minder, dus je hebt minder vetvrije massa te onderhouden, dus de mechanische BMR daalt. Tweede, fysiologische reden: je lichaam activeert een metabole adaptatie bij een langdurig calorietekort, die je BMR 5 tot 25&nbsp;% onder de verwachte waarde vertraagt (Hall 2008, M\u00fcller 2015). Zonder modellering van de adaptatie onderschat je de echte daling van je BMR tijdens een lange cut.<\/p><\/div><\/details>\n\n<details class=\"faq\"><summary>Wat zijn de optimale omstandigheden voor een BodyScan?<\/summary><div class=\"faq-body\"><p>Voor een nauwkeurige meting: natuurlijk of diffuus licht zonder slagschaduw op het lichaam; normale ademhaling, buikspieren niet aanspannen; dezelfde omstandigheden bij elke scan (zelfde tijdstip, zelfde licht, zelfde camera-afstand van ongeveer 2 meter); vermijd scannen direct na een krachttraining (de pomp doet de spieren tijdelijk opzwellen en vervalst de meting). De regelmaat van de omstandigheden telt evenveel als de kwaliteit van \u00e9\u00e9n losse scan.<\/p><\/div><\/details>\n\n<details class=\"faq\"><summary>Is de BMR verschillend bij mannen en vrouwen?<\/summary><div class=\"faq-body\"><p>Ja. Bij gelijk gewicht, lengte en leeftijd hebben vrouwen gemiddeld 8 tot 12 % minder vetvrije massa dan mannen (hormonaal en morfologisch verschil). Hun BMR is dus structureel lager, in de orde van 150 tot 250 kcal\/dag. De twee klassieke formules bevatten een verschillende geslachtsconstante. Bij Lean spreekt de gemeten vetvrije massa, onafhankelijk van het geslacht.<\/p><\/div><\/details>\n\n<details class=\"faq\"><summary>Hoe vaak moet je je BMR herberekenen?<\/summary><div class=\"faq-body\"><p>De aanbeveling van Lean: <b>\u00e9\u00e9n BodyScan per week<\/b> en <b>minimaal twee wegingen per week<\/b>. Dat ritme geeft het algoritme voldoende data om je BMR continu te herkalibreren zonder statistische ruis. Lean doet de herberekening automatisch bij elke weging en elke BodyScan, met het voortschrijdend gemiddelde van de laatste 7 dagen om schommelingen in water en glycogeen glad te strijken. Als je lichaamssamenstelling al 4 tot 6 weken stabiel is, blijft de BMR ook stabiel.<\/p><\/div><\/details>\n\n<details class=\"faq\"><summary>BMR vs rustmetabolisme (REE): wat is het verschil?<\/summary><div class=\"faq-body\"><p>De BMR (Basal Metabolic Rate) wordt gemeten nuchter, liggend, in thermische neutraliteit. De REE (Resting Energy Expenditure) wordt in rust gemeten maar onder iets minder strikte omstandigheden. In de praktijk geldt REE \u2248 BMR + 3 tot 10 %. Consumentenapps en online calculators halen de twee termen vaak door elkaar. Lean gebruikt BMR.<\/p><\/div><\/details>\n\n<details class=\"faq\"><summary>Kun je je BMR op natuurlijke wijze verhogen?<\/summary><div class=\"faq-body\"><p>Ja. De enige serieuze hefboom is <b>de vetvrije massa verhogen<\/b> (krachttraining + voldoende eiwitinname). Elke gewonnen kilo spier voegt ongeveer 13 kcal\/dag toe aan je BMR. Cafe\u00efne, koude baden, \u00abmetabolisme-boost\u00bb-di\u00ebten: tijdelijke effecten van enkele tientallen kcal gedurende enkele uren, verwaarloosbaar naast 1 kg spier die 365 dagen per jaar uitbetaalt.<\/p><\/div><\/details>\n\n<details class=\"faq\"><summary>Op welke leeftijd begint de BMR te dalen?<\/summary><div class=\"faq-body\"><p>Het idee van een lineaire daling vanaf 25 jaar is een mythe. De studie van Pontzer (Science 2021, 6&thinsp;500 proefpersonen) toonde aan dat de voor vetvrije massa gecorrigeerde BMR stabiel blijft van 20 tot 60 jaar, en daarna met ongeveer 0,7&nbsp;% per jaar begint te dalen. Wat in de praktijk verandert met de leeftijd, is de vetvrije massa die afneemt (sarcopenie) als je de spieren niet onderhoudt. Het is de sarcopenie die de BMR laat dalen, niet de leeftijd rechtstreeks.<\/p><\/div><\/details>\n\n<details class=\"faq\"><summary>Welke BMR voor welk doel (cut, bulk, onderhoud)?<\/summary><div class=\"faq-body\"><p>De BMR verandert niet volgens het doel: het is een fysiologisch gegeven van je lichaam. Wat verandert, is de doelinname aan calorie\u00ebn. Cut: TDEE &minus; 20 % (dus BMR + NEAT + EAT + TEF &minus; 20 %). Bulk: TDEE + 10 tot 15 %. Onderhoud\/recomp: TDEE &plusmn; 0. In alle gevallen werkt de initi\u00eble fout op de BMR door in het caloriedoel. Daarom is de nauwkeurigheid van de BMR niet onderhandelbaar.<\/p><\/div><\/details>\n\n<div class=\"sources\">\n  <h4>Wetenschappelijke bronnen<\/h4>\n  <ol>\n    <li>Mifflin MD, St Jeor ST, Hill LA, Scott BJ, Daugherty SA, Koh YO. A new predictive equation for resting energy expenditure in healthy individuals. Am J Clin Nutr. 1990 Feb;51(2):241-7. <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/2305711\/\" target=\"_blank\" rel=\"noopener\">PubMed 2305711<\/a>.<\/li>\n    <li>Harris JA, Benedict FG. A Biometric Study of Human Basal Metabolism. Proc Natl Acad Sci USA. 1918 Dec;4(12):370-3.<\/li>\n    <li>Frankenfield DC. Bias and accuracy of resting metabolic rate equations in non-obese and obese adults. Clin Nutr. 2013;32(6):976-82. <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/23631843\/\" target=\"_blank\" rel=\"noopener\">PubMed 23631843<\/a>.<\/li>\n    <li>M\u00fcller MJ, Bosy-Westphal A. Adaptive thermogenesis with weight loss in humans. Obesity. 2013 Feb;21(2):218-28. <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/26399868\/\" target=\"_blank\" rel=\"noopener\">PubMed 26399868<\/a>.<\/li>\n    <li>Hall KD. What is the required energy deficit per unit weight loss? Int J Obes. 2008;32(3):573-6. <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/17848938\/\" target=\"_blank\" rel=\"noopener\">PubMed 17848938<\/a>.<\/li>\n    <li>Pontzer H, Yamada Y, Sagayama H, et al. Daily energy expenditure through the human life course. Science. 2021;373(6556):808-812. <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/34385400\/\" target=\"_blank\" rel=\"noopener\">PubMed 34385400<\/a>.<\/li>\n    <li>Heymsfield SB, Smith B, Wong M, et al. Multicomponent density model: a parsimonious approach to assessing body composition. Obesity Reviews. 2015. <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/33442121\/\" target=\"_blank\" rel=\"noopener\">PubMed 33442121<\/a>.<\/li>\n  <\/ol>\n<\/div>\n\n<div class=\"get-band\">\n  <h3>Bereken je BMR op je echte vetpercentage<\/h3>\n  <p>AI BodyScan in 5 seconden. Gepatenteerd eigen model. Continue herkalibratie. Zonder formule uit 1919 of 1990. Gratis download, proefperiode van 7 dagen op het jaarabonnement.<\/p>\n  <div class=\"stores\">\n    <a href=\"https:\/\/apps.apple.com\/fr\/app\/lean-calorie-ai-podometre\/id6738668646?utm_source=seo&#038;utm_medium=blog&#038;utm_campaign=pillar-bmr\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" src=\"https:\/\/lean-app.com\/wp-content\/uploads\/2026\/05\/lvm-appstore-official.webp\" alt=\"T\u00e9l\u00e9charger sur l'App Store\" loading=\"lazy\"><\/a>\n    <a href=\"https:\/\/play.google.com\/store\/apps\/details?id=com.lean.testsqflite&#038;utm_source=seo&#038;utm_medium=blog&#038;utm_campaign=pillar-bmr\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" src=\"https:\/\/lean-app.com\/wp-content\/uploads\/2026\/05\/lvm-googleplay-official.webp\" alt=\"Disponible sur Google Play\" loading=\"lazy\"><\/a>\n  <\/div>\n<\/div>\n\n\n<\/main>\n<\/div>\n\n<script type=\"application\/ld+json\">\n{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"FAQPage\",\"@id\":\"https:\/\/lean-app.com\/metabolisme-de-base-v2\/#faq\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Qu'est-ce que le m\u00e9tabolisme de base ?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Le m\u00e9tabolisme de base, ou BMR (Basal Metabolic Rate), est l'\u00e9nergie minimale que ton corps br\u00fble au repos pour faire tourner ses fonctions vitales (coeur, cerveau, reins, foie, respiration, maintien de la temp\u00e9rature). Il repr\u00e9sente 60 \u00e0 75 % de ta d\u00e9pense totale (TDEE).\"}},{\"@type\":\"Question\",\"name\":\"Quel mod\u00e8le th\u00e9orique utilise Lean pour le BMR ?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Lean utilise un mod\u00e8le propri\u00e9taire d\u00e9velopp\u00e9 par l'\u00e9quipe R&D Lean, brevet\u00e9 en 2024. Il ne s'appuie ni sur Harris-Benedict 1919 ni sur Mifflin-St Jeor 1990 : il calcule depuis la masse maigre r\u00e9elle mesur\u00e9e par BodyScan IA, avec correction d'\u00e2ge fine, mod\u00e9lisation de l'eau corporelle et du glycog\u00e8ne, et un coefficient d'adaptation m\u00e9tabolique.\"}},{\"@type\":\"Question\",\"name\":\"Quelles sont les conditions optimales pour faire un BodyScan ?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Lumi\u00e8re naturelle ou diffuse sans ombre port\u00e9e ; respiration normale, pas de contraction des abdominaux ; m\u00eames conditions \u00e0 chaque scan (m\u00eame heure, m\u00eame lumi\u00e8re, m\u00eame distance cam\u00e9ra d'environ 2 m\u00e8tres) ; \u00e9vite de scanner juste apr\u00e8s une s\u00e9ance de musculation.\"}},{\"@type\":\"Question\",\"name\":\"Pourquoi mon BMR baisse-t-il quand je perds du poids ?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Pour deux raisons : physique (moins de masse maigre \u00e0 entretenir) et physiologique (adaptation m\u00e9tabolique, Hall 2008, M\u00fcller 2015 : 5 \u00e0 25 % de baisse du BMR en d\u00e9ficit prolong\u00e9).\"}},{\"@type\":\"Question\",\"name\":\"Peut-on augmenter son BMR naturellement ?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Oui, en augmentant la masse maigre via le renforcement musculaire et un apport prot\u00e9ique suffisant. 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Waarom Mifflin zich vergist door je activiteit te negeren.<\/span><\/a><\/li><li><a href=\"https:\/\/lean-app.com\/nl\/effet-thermique-des-aliments\/\" style=\"display:block;padding:14px 16px;background:#FAF7F2;border-radius:8px;color:#1a1a2e;text-decoration:none;font-weight:600;line-height:1.4;\">TEF: het thermisch effect van voeding op basis van je macro&rsquo;s <span style=\"color:#4D4D52;font-weight:400;display:block;font-size:14px;margin-top:4px;\">Gemiddeld 10% van de TDEE, 25% bij hoog eiwit. Lean-berekeningsmethode.<\/span><\/a><\/li><li><a href=\"https:\/\/lean-app.com\/nl\/eat\/\" style=\"display:block;padding:14px 16px;background:#FAF7F2;border-radius:8px;color:#1a1a2e;text-decoration:none;font-weight:600;line-height:1.4;\">EAT: je echte sportverbruik, training per training <span style=\"color:#4D4D52;font-weight:400;display:block;font-size:14px;margin-top:4px;\">De juiste MET, de valkuil van dubbeltelling, wat Garmin en MyFitnessPal missen.<\/span><\/a><\/li><li><a href=\"https:\/\/lean-app.com\/nl\/meilleures-applications-calories-2026\/\" style=\"display:block;padding:14px 16px;background:#FAF7F2;border-radius:8px;color:#1a1a2e;text-decoration:none;font-weight:600;line-height:1.4;\">De beste apps om calorie\u00ebn te tellen in 2026: 8 apps getest <span style=\"color:#4D4D52;font-weight:400;display:block;font-size:14px;margin-top:4px;\">Lean, MFP, Cronometer, Yazio, Lifesum, FatSecret, Noom, Foodvisor.<\/span><\/a><\/li><li><a href=\"https:\/\/lean-app.com\/nl\/alternative-myfitnesspal\/\" style=\"display:block;padding:14px 16px;background:#FAF7F2;border-radius:8px;color:#1a1a2e;text-decoration:none;font-weight:600;line-height:1.4;\">Welk alternatief voor MyFitnessPal in 2026? 5 apps getest <span style=\"color:#4D4D52;font-weight:400;display:block;font-size:14px;margin-top:4px;\">Eerlijke vergelijking, TDEE-precisie, ergonomie.<\/span><\/a><\/li><li><a href=\"https:\/\/lean-app.com\/nl\/calcul-metabolisme-de-base\/\" style=\"display:block;padding:14px 16px;background:#FAF7F2;border-radius:8px;color:#1a1a2e;text-decoration:none;font-weight:600;line-height:1.4;\">Berekening van het basaal metabolisme: de nauwkeurigste formule (2026) <span style=\"color:#4D4D52;font-weight:400;display:block;font-size:14px;margin-top:4px;\">Harris-Benedict 1919 vs Mifflin 1990 vs Lean op basis van vetpercentage.<\/span><\/a><\/li><li><a href=\"https:\/\/lean-app.com\/nl\/calculateur-adaptation-metabolique\/\" style=\"display:block;padding:14px 16px;background:#FAF7F2;border-radius:8px;color:#1a1a2e;text-decoration:none;font-weight:600;line-height:1.4;\">Calculator metabole adaptatie: is je metabolisme vertraagd? <span style=\"color:#4D4D52;font-weight:400;display:block;font-size:14px;margin-top:4px;\">Co\u00ebffici\u00ebnt 100 tot 0 %, aangepaste BMR in kcal\/dag, en wanneer je een diet break neemt.<\/span><\/a><\/li><\/ul><\/aside>","protected":false},"excerpt":{"rendered":"<p>Tout sur le m\u00e9tabolisme de base (BMR) : d\u00e9finition, \u00e9quation TDEE, histoire des formules (Harris-Benedict, Mifflin-St Jeor, \u00e9quations sur masse maigre, mod\u00e8le propri\u00e9taire brevet\u00e9 Lean), pourquoi le bodyfat change tout, strat\u00e9gies s\u00e8che\/bulk\/recomp.<\/p>","protected":false},"author":1,"featured_media":1545,"comment_status":"open","ping_status":"open","sticky":false,"template":"single-lvm-blank","format":"standard","meta":{"footnotes":""},"categories":[13],"tags":[],"class_list":["post-1587","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-comparateurs"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Basaal metabolisme: alles wat je moet weten om het precies te berekenen (BMR uitgelegd) - Lean<\/title>\n<meta name=\"description\" content=\"Het basaal metabolisme (BMR) is 60 tot 75 % van je verbruik. 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