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1<!DOCTYPE html><html  lang="de"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1"><title>KFA-Rechner — Körperfettanteil berechnen (Navy-Methode) - Science Fitness</title>
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1nswer":{"@type":"Answer","text":"Wichtiger als die Uhrzeit ist Konstanz. Am besten misst du morgens unter ähnlichen Bedingungen, bevor Essen, Training oder viel Flüssigkeit den Umfang verändern."}},{"@type":"Question","name":"Was ist besser: KFA-Rechner, Caliper oder DEXA?","acceptedAnswer":{"@type":"Answer","text":"DEXA ist genauer, aber teuer und nicht ständig verfügbar. Caliper hängt stark von der messenden Person ab. Der KFA-Rechner ist am praktischsten für regelmäßige Selbstkontrolle, solange du die Grenzen der Methode beachtest."}}]}</script>
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1KFA-Rechner</h1><!----></div><p class="mt-3 text-base leading-7 text-gray-600 sm:text-lg">Körperfettanteil berechnen mit der Navy-Methode. Du brauchst nur ein Maßband.</p><a href="/ueber-johannes" class="group mt-5 inline-flex items-center gap-3 text-left text-gray-600 transition hover:text-accent" aria-label="Mehr über Johannes Steinhart"><img src="/images/authors/author_johannes.webp" srcset="/images/authors/author_johannes.webp 1x, /images/authors/[email protected] 2x" alt="Johannes Steinhart" width="40" height="40" style="width:40px;height:40px;" loading="lazy" class="rounded-full object-cover ring-2 ring-gray-100 transition group-hover:ring-gray-200"><span class="leading-tight"><span class="block text-sm font-semibold text-gray-900">Johannes Steinhart</span><span class="block text-xs leading-snug text-gray-500">Biomediziner (M.Sc.) &amp; Trainer der Deutschen Fitnesslehrer-Vereinigung</span></span></a></div></div></header><!----><div class="space-y-5 mb-6"><!--[--><div class="grid grid-flow-col auto-cols-fr rounded-lg bg-gray-100 p-1" id="headlessui-radiogroup-v-0-7" role="radiogroup"><!--[--><button type="button" class="inline-flex min-h-11 items-center justify-center gap-2 px-3 py-2 text-sm font-semibold outline-none transition-colors cursor-pointer rounded-md bg-white text-gray-950 shadow-sm" id="headlessui-radiogroup-option-v-0-8" role="radio" aria-checked="true" tabindex="0" data-headlessui-state="checked"><span class="iconify i-fa6-solid:mars text-sm" aria-hidden="true" style=""></span><span>Mann</span></button><button type="button" class="inline-flex min-h-11 items-center justify-center gap-2 px-3 py-2 text-sm font-semibold outline-none transition-colors cursor-pointer rounded-md text-gray-600 hover:text-gray-900" id="headlessui-radiogroup-option-v-0-9" role="radio" aria-checked="false" tabindex="-1" data-headlessui-state><span class="iconify i-fa6-solid:venus text-sm" aria-hidden="true" style=""></span><span>Frau</span></button><!--]--></div><!--]--><div><label class="flex items-center gap-2 text-sm font-medium text-gray-700 mb-1"><span>Größe<!--[--> (cm)<!--]--></span><span class="ml-auto inline-flex items-center"><!--[--><!--]--></span></label><div class="flex items-stretch gap-2"><button type="button" aria-label="Größe verringern" class="grid h-12 w-12 shrink-0 place-items-center rounded-lg border border-gray-300 bg-white text-gray-700 transition-colors hover:bg-gray-50 active:bg-gray-100"><span class="iconify i-fa6-solid:minus text-sm" aria-hidden="true" style=""></span></button><input value="175" type="number" inputmode="numeric" pattern="[0-9]*" min="140" max="220" step="1" class="w-full h-12 px-3 py-2 border border-gray-300 rounded-lg outline-none focus:ring-2 focus:border-blue-400 focus:shadow-sm transition-all duration-150 h-12 text-center text-lg font-semibold tabular-nums focus:ring-blue-500"><button type="button" aria-label="Größe erhoehen" class="grid h-12 w-12 shrink-0 place-items-center rounded-lg border border-gray-300 bg-white text-gray-700 transition-colors hover:bg-gray-50 active:bg-gray-100"><span class="iconify i-fa6-solid:plus text-sm" aria-hidden="true" style=""></span></button></div><!----><!--[--><!--]--></div><div><label class="flex items-center gap-2 text-sm font-medium text-gray-700 mb-1"><span>Alter<!----></span><span class="ml-auto inline-flex items-center"><!--[--><!--]--></span></label><div class="flex items-stretch gap-2"><button type="button" aria-label="Alter verringern" class="grid h-12 w-12 shrink-0 place-items-center rounded-lg border border-gray-300 bg-white text-gray-700 transition-colors hover:bg-gray-50 active:bg-gray-100"><span class="iconify i-fa6-solid:minus text-sm" aria-hidden="true" style=""></span></button><input value="30" type="number" inputmode="numeric" pattern="[0-9]*" min="14" max="80" step="1" class="w-full h-12 px-3 py-2 border border-gray-300 rounded-lg outline-none focus:ring-2 focus:border-blue-400 focus:shadow-sm transition-all duration-150 h-12 text-center text-lg font-semibold tabular-nums focus:ring-blue-500"><button type="button" aria-label="Alter erhoehen" class="grid h-12 w-12 shrink-0 place-items-center rounded-lg border border-gray-300 bg-white text-gray-700 transition-colors hover:bg-gray-50 active:bg-gray-100"><span class="iconify i-fa6-solid:plus text-sm" aria-hidden="true" style=""></span></button></div><!----><!--[--><!--]--></div><div><label class="flex items-center gap-2 text-sm font-medium text-gray-700 mb-1"><span>Halsumfang<!--[--> (cm)<!--]--></span><span class="ml-auto inline-flex items-center"><!--[--><span class="relative inline-block"><button type="button" class="inline-grid h-8 w-8 cursor-help place-items-center rounded-full align-middle text-gray-400 hover:bg-gray-100 hover:text-gray-700 focus:outline-none" aria-expanded="false"><span class="iconify i-fa6-solid:circle-info text-xs" aria-hidden="true" style=""></span></button><!--teleport start--><!--teleport end--></span><!--]--></span></label><div class="flex items-stretch gap-2"><button type="button" aria-label="Halsumfang verringern" class="grid h-12 w-12 shrink-0 place-items-center rounded-lg border border-gray-300 bg-white text-gray-700 transition-colors hover:bg-gray-50 active:bg-gray-100"><span class="iconify i-fa6-solid:minus text-sm" aria-hidden="true" style=""></span></button><input value="38" type="text" inputmode="decimal" min="25" max="60" step="0.5" class="w-full h-12 px-3 py-2 border border-gray-300 rounded-lg outline-none focus:ring-2 focus:border-blue-400 focus:shadow-sm transition-all duration-150 h-12 text-center text-lg font-semibold tabular-nums focus:ring-blue-500"><button type="button" aria-label="Halsumfang erhoehen" class="grid h-12 w-12 shrink-0 place-items-center rounded-lg border border-gray-300 bg-white text-gray-700 transition-colors hover:bg-gray-50 active:bg-gray-100"><span class="iconify i-fa6-solid:plus text-sm" aria-hidden="true" style=""></span></button></div><!----><!--[--><!--]--></div><div><label class="flex items-center gap-2 text-sm font-medium text-gray-700 mb-1"><span>Bauchumfang<!--[--> (cm)<!--]--></span><span class="ml-auto inline-flex items-center"><!--[--><span class="relative inline-block"><button type="button" class="inline-grid h-8 w-8 cursor-help place-items-center rounded-full align-middle text-gray-400 hover:bg-gray-100 hover:text-gray-700 focus:outline-none" aria-expanded="false"><span class="iconify i-fa6-solid:circle-info text-xs" aria-hidden="true" style=""></span></button><!--teleport start--><!--teleport end--></span><!--]--></span></label><div class="flex items-stretch gap-2"><button type="button" aria-label="Bauchumfang verringern" class="grid h-12 w-12 shrink-0 place-items-center rounded-lg border border-gray-300 bg-white text-gray-700 transition-colors hover:bg-gray-50 active:bg-gray-100"><span class="iconify i-fa6-solid:minus text-sm" aria-hidden="true" style=""></span></button><input value="85" type="text" inputmode="decimal" min="50" max="160" step="0.5" class="w-full h-12 px-3 py-2 border border-gray-300 rounded-lg outline-none focus:ring-2 focus:border-blue-400 focus:shadow-sm transition-all duration-150 h-12 text-center text-lg font-semibold tabular-nums focus:ring-blue-500"><button type="button" aria-label="Bauchumfang erhoehen" class="grid h-12 w-12 shrink-0 place-items-center rounded-lg border border-gray-300 bg-white text-gray-700 transition-colors hover:bg-gray-50 active:bg-gray-100"><span class="iconify i-fa6-solid:plus text-sm" aria-hidden="true" style=""></span></button></div><!----><!--[--><!--]--></div><!----><section class="overflow-hidden rounded-xl border border-gray-200 bg-white"><div class="flex items-center justify-between gap-3 px-4 py-4"><div><h2 class="text-base font-semibold text-gray-900">Korrekturen für Alter &amp; Training</h2><p class="mt-1 text-sm text-gray-500"> Verfeinert die KFA-Schätzung, wenn Alter, Muskelmasse oder regelmäßiges Training die Umfänge messbar beeinflussen können. </p><p class="mt-1 text-xs text-gray-500">Kostenlos freischalten und deine Eingaben behalten.</p></div><span class="iconify i-fa6-solid:lock shrink-0 text-gray-400" aria-hidden="true" style=""></span></div><div class="bg-gray-50/80 border-t border-gray-100 px-4 py-4"><fieldset disabled class="pointer-events-none select-none opacity-55 grayscale-[0.2] space-y-5"><div class="flex items-start justify-between gap-3"><div><label class="block text-sm font-semibold text-gray-900">Alter &amp; Training berücksichtigen</label><p class="mt-1 text-sm text-gray-500"> Verfeinert die Schätzung für altersbedingte Veränderungen der Körperzusammensetzung. Regelmäßiges Training kann diese Korrektur abschwächen. </p></div><!--[--><!----><button class="bg-gray-200 relative inline-flex h-6 w-11 flex-shrink-0 cursor-pointer rounded-full border-2 border-transparent transition-colors duration-200 ease-in-out focus:outline-none focus-visible:ring-2 focus-visible:ring-blue-500 focus-visible:ring-offset-2" id="headlessui-switch-v-0-10" role="switch" type="button" tabindex="0" aria-checked="false" data-headlessui-state><span class="translate-x-0 pointer-events-none inline-block h-5 w-5 transform rounded-full bg-white shadow ring-0 transition-transform duration-200 sf-switch-thumb" data-v-a40f5154></span></button><!--]--></div><div class="border-t border-gray-100 pt-5"><label class="mb-2 block text-sm font-semibold text-gray-900">Krafttraining pro Woche</label><!--[--><div class="relative flex flex-wrap gap-2" id="headlessui-radiogroup-v-0-11" role="radiogroup"><!----><!--[--><button type="button" class="px-3 py-2 border text-sm font-medium outline-none relative z-20 transition-all duration-150 rounded-lg cursor-pointer bg-blue-600 text-white border-blue-600" id="headlessui-radiogroup-option-v-0-12" role="radio" aria-checked="true" tabindex="0" data-headlessui-state="checked"><!----> 0x/Woche</button><button type="button" class="px-3 py-2 border text-sm font-medium outline-none relative z-20 transition-all duration-150 rounded-lg cursor-pointer bg-white text-gray-700 border-gray-300 hover:bg-gray-50 active:scale-95" id="headlessui-radiogroup-option-v-0-13" role="radio" aria-checked="false" tabindex="-1" data-headlessui-state><!----> 1x/Woche</button><button type="button" class="px-3 py-2 border text-sm font-medium outline-none relative z-20 transition-all duration-150 rounded-lg cursor-pointer bg-white text-gray-700 border-gray-300 hover:bg-gray-50 active:scale-95" id="headlessui-radiogroup-option-v-0-14" role="radio" aria-checked="false" tabindex="-1" data-headlessui-state><!----> 2x+/Woche</button><button type="button" class="px-3 py-2 border text-sm font-medium outline-none relative z-20 transition-all duration-150 rounded-lg cursor-pointer bg-white text-gray-700 border-gray-300 hover:bg-gray-50 active:scale-95" id="headlessui-radiogroup-option-v-0-15" role="radio" aria-checked="false" tabindex="-1" data-headlessui-state><!----> 3x+/Woche</button><!--]--></div><!--]--></div><div><label class="mb-2 block text-sm font-semibold text-gray-900">Ausdauertraining pro Woche</label><!--[--><div class="relative flex flex-wrap gap-2" id="headlessui-radiogroup-v-0-16" role="radiogroup"><!----><!--[--><button type="button" class="px-3 py-2 border text-sm font-medium outline-none relative z-20 transition-all duration-150 rounded-lg cursor-pointer bg-blue-600 text-white border-blue-600" id="headlessui-radiogroup-option-v-0-17" role="radio" aria-checked="true" tabindex="0" data-headlessui-state="checked"><!----> 0x/Woche</button><button type="button" class="px-3 py-2 border text-sm font-medium outline-none relative z-20 transition-all duration-150 rounded-lg cursor-pointer bg-white text-gray-700 border-gray-300 hover:bg-gray-50 active:scale-95" id="headlessui-radiogroup-option-v-0-18" role="radio" aria-checked="false" tabindex="-1" data-headlessui-state><!----> 1-2x/Woche</button><button type="button" class="px-3 py-2 border text-sm font-medium outline-none relative z-20 transition-all duration-150 rounded-lg cursor-pointer bg-white text-gray-700 border-gray-300 hover:bg-gray-50 active:scale-95" id="headlessui-radiogroup-option-v-0-19" role="radio" aria-checked="false" tabindex="-1" data-headlessui-state><!----> 3x+/Woche</button><button type="button" class="px-3 py-2 border text-sm font-medium outline-none relative z-20 transition-all duration-150 rounded-lg cursor-pointer bg-white text-gray-700 border-gray-300 hover:bg-gray-50 active:scale-95" id="headlessui-radiogroup-option-v-0-20" role="radio" aria-checked="false" tabindex="-1" data-headlessui-state><!----> 4x+/Woche</button><!--]--></div><!--]--><p class="mt-3 text-sm text-gray-500"> Der Effekt kann klein ausfallen, weil Training hier vor allem die Alterskorrektur reduziert. </p></div></fieldset><div class="-mx-4 -mb-4 mt-5 border-t border-blue-100 bg-blue-50/70 px-4 py-4 sm:px-5"><div class="flex items-start gap-3"><div class="mt-0.5 flex h-9 w-9 shrink-0 items-center justify-center rounded-full bg-white text-blue-600 shadow-sm"><span class="iconify i-fa6-solid:spinner text-sm animate-spin" aria-hidden="true" style=""></span></div><div class="min-w-0 flex-1"><p class="text-sm font-semibold text-gray-900">Login wird geprüft</p><p class="mt-1 text-sm text-gray-600">Einen Moment, wir laden deinen Login-Status.</p><!----></div></div></div></div></section><button type="button" aria-busy="false" class="flex w-full cursor-pointer items-center justify-center gap-2 rounded-xl bg-gray-900 py-4 font-semibold text-white shadow-sm transition-all hover:bg-gray-800 disabled:cursor-not-allowed disabled:opacity-50"><!----><span>KFA berechnen</span></button><!----><!----></div><section class="mt-12 space-y-7"><div class="prose prose-gray max-w-none"><h2>So funktioniert die Navy-Methode</h2><p> Die Navy-Methode schätzt den Körperfettanteil aus Hals-, Bauch-, Taillen- und Hüftumfang. Der Vorteil: Du brauchst nur ein Maßband und kannst unter denselben Bedingungen regelmäßig nachmessen. Der Nachteil: Die Methode erkennt individuelle Fettverteilung und Muskelmasse nur indirekt. </p><h2>So misst du verlässlicher</h2><ul><li>Miss immer an denselben Körperstellen und möglichst zur gleichen Tageszeit.</li><li>Halte das Maßband waagerecht, ohne es in die Haut zu drücken.</li><li>Nutze den Trend über mehrere Messungen statt einen einzelnen Wert zu überbewerten.</li></ul></div><div><h2 class="mb-4 text-xl font-semibold text-gray-900 md:text-2xl">
1Häufige Fragen zum KFA-Rechner</h2><div class="space-y-2"><!--[--><div data-headlessui-state><button id="headlessui-disclosure-button-v-0-21" type="button" aria-expanded="false" data-headlessui-state class="sf-accordion-btn w-full flex items-center justify-between px-4 py-3 text-left bg-white hover:bg-gray-50 border border-gray-200 rounded-lg transition-colors cursor-pointer"><!--[--><span class="text-base font-medium text-gray-900 pr-4">Wie genau ist die Navy-Methode?</span><!--]--><span class="iconify i-fa6-solid:chevron-down text-gray-400 text-sm transition-transform duration-200 flex-shrink-0" aria-hidden="true" style=""></span></button><div class="grid transition-[grid-template-rows,opacity] duration-300 ease-out grid-rows-[0fr] opacity-0"><div id="headlessui-disclosure-panel-v-0-22" data-headlessui-state class="overflow-hidden px-4 pb-3 pt-1 text-sm text-gray-600 leading-relaxed"><!--[-->Die Navy-Methode ist eine praktische Schätzung, keine Laboranalyse. Sie ist gut geeignet, um Trends zu verfolgen, wenn du immer gleich misst. Einzelwerte können durch Messfehler, Wasserhaushalt, Körperbau und Fettverteilung abweichen.<!--]--></div></div></div><div data-headlessui-state><button id="headlessui-disclosure-button-v-0-23" type="button" aria-expanded="false" data-headlessui-state class="sf-accordion-btn w-full flex items-center justify-between px-4 py-3 text-left bg-white hover:bg-gray-50 border border-gray-200 rounded-lg transition-colors cursor-pointer"><!--[--><span class="text-base font-medium text-gray-900 pr-4">Warum unterscheidet sich die Formel für Männer und Frauen?</span><!--]--><span class="iconify i-fa6-solid:chevron-down text-gray-400 text-sm transition-transform duration-200 flex-shrink-0" aria-hidden="true" style=""></span></button><div class="grid transition-[grid-template-rows,opacity] duration-300 ease-out grid-rows-[0fr] opacity-0"><div id="headlessui-disclosure-panel-v-0-24" data-headlessui-state class="overflow-hidden px-4 pb-3 pt-1 text-sm text-gray-600 leading-relaxed"><!--[-->Männer und Frauen lagern Körperfett im Durchschnitt unterschiedlich ein. Deshalb nutzt die Formel bei Männern vor allem Hals und Bauch, bei Frauen zusätzlich Taille und Hüfte.<!--]--></div></div></div><div data-headlessui-state><button id="headlessui-disclosure-button-v-0-25" type="button" aria-expanded="false" data-headlessui-state class="sf-accordion-btn w-full flex items-center justify-between px-4 py-3 text-left bg-white hover:bg-gray-50 border border-gray-200 rounded-lg transition-colors cursor-pointer"><!--[--><span class="text-base font-medium text-gray-900 pr-4">Wo muss ich den Bauchumfang messen?</span><!--]--><span class="iconify i-fa6-solid:chevron-down text-gray-400 text-sm transition-transform duration-200 flex-shrink-0" aria-hidden="true" style=""></span></button><div class="grid transition-[grid-template-rows,opacity] duration-300 ease-out grid-rows-[0fr] opacity-0"><div id="headlessui-disclosure-panel-v-0-26" data-headlessui-state class="overflow-hidden px-4 pb-3 pt-1 text-sm text-gray-600 leading-relaxed"><!--[-->Miss auf Höhe des Bauchnabels nach entspannter Ausatmung. Das Maßband sollte parallel zum Boden liegen und nicht in die Haut einschneiden.<!--]--></div></div></div><div data-headlessui-state><button id="headlessui-disclosure-button-v-0-27" type="button" aria-expanded="false" data-headlessui-state class="sf-accordion-btn w-full flex items-center justify-between px-4 py-3 text-left bg-white hover:bg-gray-50 border border-gray-200 rounded-lg transition-colors cursor-pointer"><!--[--><span class="text-base font-medium text-gray-900 pr-4">Soll ich morgens oder abends messen?</span><!--]--><span class="iconify i-fa6-solid:chevron-down text-gray-400 text-sm transition-transform duration-200 flex-shrink-0" aria-hidden="true" style=""></span></button><div class="grid transition-[grid-template-rows,opacity] duration-300 ease-out grid-rows-[0fr] opacity-0"><div id="headlessui-disclosure-panel-v-0-28" data-headlessui-state class="overflow-hidden px-4 pb-3 pt-1 text-sm text-gray-600 leading-relaxed"><!--[-->Wichtiger als die Uhrzeit ist Konstanz. Am besten misst du morgens unter ähnlichen Bedingungen, bevor Essen, Training oder viel Flüssigkeit den Umfang verändern.<!--]--></div></div></div><div data-headlessui-state><button id="headlessui-disclosure-button-v-0-29" type="button" aria-expanded="false" data-headlessui-state class="sf-accordion-btn w-full flex items-center justify-between px-4 py-3 text-left bg-white hover:bg-gray-50 border border-gray-200 rounded-lg transition-colors cursor-pointer"><!--[--><span class="text-base font-medium text-gray-900 pr-4">Was ist besser: KFA-Rechner, Caliper oder DEXA?</span><!--]--><span class="iconify i-fa6-solid:chevron-down text-gray-400 text-sm transition-transform duration-200 flex-shrink-0" aria-hidden="true" style=""></span></button><div class="grid transition-[grid-template-rows,opacity] duration-300 ease-out grid-rows-[0fr] opacity-0"><div id="headlessui-disclosure-panel-v-0-30" data-headlessui-state class="overflow-hidden px-4 pb-3 pt-1 text-sm text-gray-600 leading-relaxed"><!--[-->DEXA ist genauer, aber teuer und nicht ständig verfügbar. Caliper hängt stark von der messenden Person ab. Der KFA-Rechner ist am praktischsten für regelmäßige Selbstkontrolle, solange du die Grenzen der Methode beachtest.<!--]--></div></div></div><!--]--></div></div></section><div id="postcontent-plus" class="sf-article-section"><section class="sf-postcontent-band"><p class="text-xs font-semibold uppercase tracking-[0.14em] text-blue-700">
1SF Plus · Research Briefings</p><h2 class="sf-article-section-title mt-2">Mehr verstehen. Besser entscheiden.</h2><p class="sf-postcontent-body mt-3"> Was bedeuten neue Studien für dein Training, deine Ernährung und deine Gesundheit? Unsere Briefings ordnen die Ergebnisse ein und zeigen dir, was du daraus mitnehmen kannst. </p><a href="/briefings?mtm_source=onsite&amp;mtm_medium=postcontent-article" class="sf-postcontent-link mt-4 inline-flex min-h-11 items-center font-semibold"> Kostenlose Leseproben ansehen → </a></section><div class="mt-4 flex flex-wrap items-center gap-x-5 gap-y-2"><a href="/sf-plus?mtm_source=onsite&amp;mtm_medium=postcontent-article" class="inline-flex min-h-11 items-center justify-center rounded-lg bg-red-600 px-5 py-2.5 text-sm font-semibold text-white hover:bg-red-700"> SF Plus entdecken </a><p class="text-sm text-gray-500">Leseproben kostenlos · Vollständig mit SF Plus</p></div></div><section id="comments-section" class="sf-article-section"><div class="sf-postcontent-band overflow-hidden p-0"><div data-headlessui-state class=""><button id="headlessui-disclosure-button-v-0-28-0" type="button" aria-expanded="false" data-headlessui-state class="sf-postcontent-band-inset w-full flex items-center justify-between gap-3 py-5 bg-gray-50 hover:bg-gray-100 transition-colors text-left focus-visible:outline-2 focus-visible:outline-blue-600 focus-visible:outline-offset-[-2px]"><!--[--><div class="flex items-center gap-3 text-gray-500"><span class="iconify i-fa6-regular:comment" aria-hidden="true" style="font-size:18px;"></span><span class="font-medium text-gray-900">Keine Kommentare</span></div><span class="iconify i-fa6-solid:chevron-down text-gray-400 transition-transform duration-200" aria-hidden="true" style="font-size:14px;"></span><!--]--></button><!----></div></div></section></div></div><!--]--><!--]--></main><footer class="bg-gradient-to-br from-slate-900 via-slate-800 to-slate-900 text-slate-300"><div class="border-b border-slate-700/50"><div class="max-w-7xl mx-auto flex flex-col items-start gap-4 px-4 py-8 sm:flex-row sm:items-center sm:justify-between"><div><p class="text-base font-semibold text-white">SF Plus</p><p class="mt-1 max-w-xl text-sm text-slate-300">Research Briefings zu Training, Ernährung und Gesundheit. Verständlich eingeordnet, mit Antworten für deinen Alltag.</p></div><a href="/sf-plus?mtm_source=onsite&amp;mtm_medium=footer-block" class="inline-flex min-h-11 shrink-0 items-center gap-2 rounded-lg bg-red-600 px-5 py-2.5 text-sm font-semibold text-white hover:bg-red-700"> SF Plus entdecken <span class="iconify i-fa6-solid:arrow-right text-xs" aria-hidden="true" style=""></span></a></div></div><div class="max-w-7xl mx-auto px-4 py-16"><div class="grid grid-cols-1 md:grid-cols-3 gap-12"><div><h3 class="text-sm font-semibold text-white uppercase tracking-wide mb-4">Science Fitness</h3><p class="text-sm text-slate-400 leading-relaxed"> Evidenzbasierte Fitness, Ernährung und Gesundheit. 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