{"id":1248,"date":"2026-09-22T13:51:42","date_gmt":"2026-09-22T12:51:42","guid":{"rendered":"https:\/\/www.nutrixeal.fr\/expertise\/?p=1248"},"modified":"2026-09-22T15:53:43","modified_gmt":"2026-09-22T14:53:43","slug":"sarcopenie-perte-musculaire-age","status":"publish","type":"post","link":"https:\/\/www.nutrixeal.fr\/expertise\/sarcopenie-perte-musculaire-age\/","title":{"rendered":"Sarcop\u00e9nie&nbsp;: Comprendre et comment combattre la perte musculaire li\u00e9e \u00e0 l&rsquo;\u00e2ge&nbsp;?\u00a0"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Apr\u00e8s 30 ans, le corps perd du muscle chaque ann\u00e9e sans que rien ne le signale. Cette fonte musculaire progressive porte un nom, la sarcop\u00e9nie, et elle n&rsquo;a rien d&rsquo;une fatalit\u00e9. Comprendre ses m\u00e9canismes permet d&rsquo;agir t\u00f4t, sur les deux seuls leviers qui fonctionnent vraiment.<\/p>\n\n\n\r\n<section class=\"article-callout article-callout--summary panel summary-box\">\r\n\r\n    <div class=\"article-callout__header\">\r\n      <span class=\"article-callout__icon\" aria-hidden=\"true\">\r\n                  <svg width=\"24\" height=\"24\" viewBox=\"0 0 24 24\" fill=\"none\">\r\n            <path d=\"M3.5 10C3.5 6.22876 3.5 4.34315 4.7448 3.17157C5.98959 2 7.99306 2 12 2H12.7727C16.0339 2 17.6645 2 18.7969 2.79784C19.1214 3.02643 19.4094 3.29752 19.6523 3.60289C20.5 4.66867 20.5 6.20336 20.5 9.27273V11.8182C20.5 14.7814 20.5 16.2629 20.0311 17.4462C19.2772 19.3486 17.6829 20.8491 15.6616 21.5586C14.4044 22 12.8302 22 9.68182 22C7.88275 22 6.98322 22 6.26478 21.7478C5.10979 21.3424 4.19875 20.4849 3.76796 19.3979C3.5 18.7217 3.5 17.8751 3.5 16.1818V10Z\" stroke=\"#4FA729\" stroke-width=\"1.5\" stroke-linejoin=\"round\"\/>\r\n            <path d=\"M20.5 12C20.5 13.8409 19.0076 15.3333 17.1667 15.3333C16.5009 15.3333 15.716 15.2167 15.0686 15.3901C14.4935 15.5442 14.0442 15.9935 13.8901 16.5686C13.7167 17.216 13.8333 18.0009 13.8333 18.6667C13.8333 20.5076 12.3409 22 10.5 22\" stroke=\"#4FA729\" stroke-width=\"1.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\/>\r\n            <path d=\"M8 7H15\" stroke=\"#4FA729\" stroke-width=\"1.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\/>\r\n            <path d=\"M8 11H11\" stroke=\"#4FA729\" stroke-width=\"1.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\/>\r\n          <\/svg>\r\n                <\/span>\r\n\r\n      <p class=\"article-callout__title\">\r\n        En r\u00e9sum\u00e9      <\/p>\r\n    <\/div>\r\n\r\n    <div class=\"article-callout__content\">\r\n      \n<ul class=\"wp-block-list\">\n<li><strong>Perte musculaire progressive<\/strong>&nbsp;: La sarcop\u00e9nie d\u00e9signe la baisse de masse et de force musculaire li\u00e9e \u00e0 l\u2019\u00e2ge, avec un impact direct sur l\u2019autonomie.<\/li>\n\n\n\n<li><strong>Force avant volume<\/strong>&nbsp;: Le crit\u00e8re principal n\u2019est plus seulement la masse musculaire, mais la force, plus r\u00e9v\u00e9latrice des capacit\u00e9s r\u00e9elles au quotidien.<\/li>\n\n\n\n<li><strong>Facteurs aggravants<\/strong>&nbsp;: Inactivit\u00e9, apport prot\u00e9ique insuffisant, maladies chroniques, hospitalisations r\u00e9p\u00e9t\u00e9es ou isolement acc\u00e9l\u00e8rent la fonte musculaire.<\/li>\n\n\n\n<li><strong>Signes \u00e0 rep\u00e9rer<\/strong>&nbsp;: Difficult\u00e9 \u00e0 se lever, monter les escaliers, marcher vite, porter des charges ou ouvrir un bocal peuvent alerter.<\/li>\n\n\n\n<li><strong>Leviers efficaces<\/strong>&nbsp;: L\u2019entra\u00eenement contre r\u00e9sistance et un apport suffisant en prot\u00e9ines restent les deux piliers pour pr\u00e9venir ou ralentir la sarcop\u00e9nie.<\/li>\n\n\n\n<li><strong>Soutiens nutritionnels<\/strong>&nbsp;: Vitamine D, cr\u00e9atine, magn\u00e9sium, calcium et prot\u00e9ines en poudre peuvent aider, mais seulement en compl\u00e9ment d\u2019un programme adapt\u00e9.<\/li>\n<\/ul>\n    <\/div>\r\n\r\n<\/section>\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-b2ed270d\"><h2 class=\"uagb-heading-text\">Qu&rsquo;est-ce que la sarcop\u00e9nie&nbsp;? D\u00e9finition et enjeux<\/h2><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">La sarcop\u00e9nie d\u00e9signe la perte progressive de masse et de force musculaire li\u00e9e \u00e0 l&rsquo;\u00e2ge. Le terme vient du grec et signifie litt\u00e9ralement \u00ab pauvret\u00e9 de chair \u00bb, ce qui d\u00e9crit assez bien le ph\u00e9nom\u00e8ne.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Longtemps consid\u00e9r\u00e9e comme un simple effet du vieillissement, cette pathologie est aujourd&rsquo;hui reconnue comme une maladie \u00e0 part enti\u00e8re, avec son propre code de classification internationale depuis 2016.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Le groupe de travail europ\u00e9en sur la sarcop\u00e9nie a r\u00e9vis\u00e9 sa d\u00e9finition en 2019.<sup>[1]<\/sup>&nbsp;Le changement est important&nbsp;: c&rsquo;est d\u00e9sormais la force musculaire qui constitue le crit\u00e8re premier, et non plus la masse musculaire.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ce basculement traduit une r\u00e9alit\u00e9 clinique. Un muscle peut conserver son volume tout en perdant sa capacit\u00e9 de contraction, et c&rsquo;est elle qui d\u00e9termine l&rsquo;autonomie au quotidien.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les chiffres donnent la mesure de l&rsquo;enjeu&nbsp;: la masse musculaire diminue de 3 \u00e0 8 % par d\u00e9cennie apr\u00e8s 30 ans, et le rythme s&rsquo;acc\u00e9l\u00e8re nettement apr\u00e8s 60 ans.<\/p>\n\n\n\r\n<section class=\"article-callout article-callout--takeaway panel summary-box\">\r\n\r\n    <div class=\"article-callout__header\">\r\n      <span class=\"article-callout__icon\" aria-hidden=\"true\">\r\n                  <svg width=\"24\" height=\"24\" viewBox=\"0 0 24 24\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\r\n            <path d=\"M5.14286 14C4.41735 12.8082 4 11.4118 4 9.91886C4 5.54539 7.58172 2 12 2C16.4183 2 20 5.54539 20 9.91886C20 11.4118 19.5827 12.8082 18.8571 14\" stroke=\"#98800B\" stroke-width=\"1.5\" stroke-linecap=\"round\"\/>\r\n            <path d=\"M7.38287 17.0982C7.291 16.8216 7.24507 16.6833 7.25042 16.5713C7.26174 16.3343 7.41114 16.1262 7.63157 16.0405C7.73579 16 7.88105 16 8.17157 16H15.8284C16.119 16 16.2642 16 16.3684 16.0405C16.5889 16.1262 16.7383 16.3343 16.7496 16.5713C16.7549 16.6833 16.709 16.8216 16.6171 17.0982C16.4473 17.6094 16.3624 17.8651 16.2315 18.072C15.9572 18.5056 15.5272 18.8167 15.0306 18.9408C14.7935 19 14.525 19 13.9881 19H10.0119C9.47495 19 9.2065 19 8.96944 18.9408C8.47283 18.8167 8.04281 18.5056 7.7685 18.072C7.63755 17.8651 7.55266 17.6094 7.38287 17.0982Z\" stroke=\"#98800B\" stroke-width=\"1.5\"\/>\r\n            <path d=\"M15 19L14.8707 19.6466C14.7293 20.3537 14.6586 20.7072 14.5001 20.9866C14.2552 21.4185 13.8582 21.7439 13.3866 21.8994C13.0816 22 12.7211 22 12 22C11.2789 22 10.9184 22 10.6134 21.8994C10.1418 21.7439 9.74484 21.4185 9.49987 20.9866C9.34144 20.7072 9.27073 20.3537 9.12932 19.6466L9 19\" stroke=\"#98800B\" stroke-width=\"1.5\"\/>\r\n            <path d=\"M12 16V11\" stroke=\"#98800B\" stroke-width=\"1.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\/>\r\n          <\/svg>\r\n                <\/span>\r\n\r\n      <p class=\"article-callout__title\">\r\n        Bon \u00e0 savoir      <\/p>\r\n    <\/div>\r\n\r\n    <div class=\"article-callout__content\">\r\n      \n<p class=\"wp-block-paragraph\">La sarcop\u00e9nie n&rsquo;est pas r\u00e9serv\u00e9e aux personnes tr\u00e8s \u00e2g\u00e9es. Le processus commence d\u00e8s la trentaine, silencieusement, et les habitudes prises entre 30 et 50 ans d\u00e9terminent en grande partie le capital musculaire dont vous disposerez plus tard.<\/p>\n    <\/div>\r\n\r\n<\/section>\n\n\n<p class=\"wp-block-paragraph\">Cette temporalit\u00e9 explique l&rsquo;int\u00e9r\u00eat d&rsquo;agir avant l&rsquo;apparition des premiers signes. Prendre de l&rsquo;avance change radicalement la trajectoire.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-e1a945ed\"><h2 class=\"uagb-heading-text\">Quels sont les causes et facteurs de risque de la sarcop\u00e9nie&nbsp;?<\/h2><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Les origines de la sarcop\u00e9nie se r\u00e9partissent en deux groupes. Certaines rel\u00e8vent du vieillissement lui-m\u00eame, les autres du mode de vie et de l&rsquo;\u00e9tat de sant\u00e9, et ce sont ces derni\u00e8res qui offrent une prise r\u00e9elle.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-0e8d65de\"><h3 class=\"uagb-heading-text\">Le vieillissement naturel et ses effets sur les muscles<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Trois m\u00e9canismes expliquent la sarcop\u00e9nie li\u00e9e \u00e0 l&rsquo;\u00e2ge. La synth\u00e8se des prot\u00e9ines musculaires devient moins efficace, ph\u00e9nom\u00e8ne que les chercheurs appellent la r\u00e9sistance anabolique&nbsp;: il faut en consommer davantage pour obtenir le m\u00eame effet qu&rsquo;\u00e0 25 ans.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les fibres rapides, celles qui produisent la puissance, disparaissent en priorit\u00e9. Cette s\u00e9lectivit\u00e9 explique pourquoi les capacit\u00e9s d\u00e9clinent plus vite que le volume des muscles.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les changements hormonaux compl\u00e8tent le tableau. La baisse de la testost\u00e9rone chez l&rsquo;homme, celle des \u0153strog\u00e8nes chez la femme apr\u00e8s la m\u00e9nopause, r\u00e9duisent la capacit\u00e9 de construction musculaire.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-9d2ead97\"><h3 class=\"uagb-heading-text\">Les facteurs de risque li\u00e9s au mode de vie (inactivit\u00e9, nutrition)<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">L&rsquo;inactivit\u00e9 est le premier acc\u00e9l\u00e9rateur. Une semaine d&rsquo;alitement suffit \u00e0 faire perdre plusieurs centaines de grammes de muscle chez une personne \u00e2g\u00e9e, et la r\u00e9cup\u00e9ration demande beaucoup plus de temps que la perte.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La sous-alimentation prot\u00e9ique arrive juste derri\u00e8re. Beaucoup de seniors mangent moins, souvent par baisse d&rsquo;app\u00e9tit, et leur alimentation ne couvre plus les besoins d&rsquo;un organisme devenu moins efficace.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Le tabac p\u00e8se \u00e9galement, tout comme une consommation excessive d&rsquo;alcool ou un d\u00e9ficit \u00e9nerg\u00e9tique global. Ces \u00e9l\u00e9ments agissent en synergie et acc\u00e9l\u00e8rent la fonte musculaire.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La bonne nouvelle tient en une phrase&nbsp;: ces facteurs sont modifiables. Contrairement \u00e0 l&rsquo;\u00e2ge, ils d\u00e9pendent de choix quotidiens sur lesquels chacun garde la main.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-4902101b\"><h3 class=\"uagb-heading-text\">Les maladies chroniques et leur r\u00f4le dans le d\u00e9veloppement de la sarcop\u00e9nie<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Plusieurs pathologies acc\u00e9l\u00e8rent la perte musculaire. L&rsquo;insuffisance r\u00e9nale, la bronchopneumopathie chronique obstructive, l&rsquo;insuffisance cardiaque et le diab\u00e8te de type 2 figurent parmi les plus document\u00e9es.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Le m\u00e9canisme commun passe par l&rsquo;inflammation de bas grade qui accompagne ces maladies. Elle perturbe la balance entre construction et d\u00e9gradation des fibres musculaires, au d\u00e9triment de la premi\u00e8re.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les hospitalisations r\u00e9p\u00e9t\u00e9es aggravent la situation. Chaque s\u00e9jour prolong\u00e9 combine immobilisation, app\u00e9tit r\u00e9duit et inflammation, un trio particuli\u00e8rement d\u00e9favorable pour les muscles.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-76faaffc\"><h3 class=\"uagb-heading-text\">Les facteurs g\u00e9n\u00e9tiques et environnementaux<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">La part h\u00e9r\u00e9ditaire existe, sans \u00eatre d\u00e9terminante. Les \u00e9tudes sur jumeaux estiment que la g\u00e9n\u00e9tique explique une partie de la variabilit\u00e9 entre individus, le reste relevant du mode de vie.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">L&rsquo;environnement joue un r\u00f4le plus concret. Un logement avec ascenseur, une voiture pour chaque d\u00e9placement, un travail s\u00e9dentaire&nbsp;: le cadre de vie moderne r\u00e9duit m\u00e9caniquement la sollicitation des muscles.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">L&rsquo;isolement social est un facteur \u00e0 part enti\u00e8re. Il s&rsquo;accompagne souvent d&rsquo;une alimentation appauvrie et d&rsquo;une activit\u00e9 r\u00e9duite, deux \u00e9l\u00e9ments qui se renforcent mutuellement.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-ed75f514\"><h3 class=\"uagb-heading-text\">La sarcop\u00e9nie chez les moins de 50 ans&nbsp;: une r\u00e9alit\u00e9 \u00e9mergente<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">La sarcop\u00e9nie n&rsquo;est plus l&rsquo;apanage des seniors. La s\u00e9dentarit\u00e9, un r\u00e9gime restrictif r\u00e9p\u00e9t\u00e9 et une alimentation pauvre cr\u00e9ent les conditions d&rsquo;une fonte musculaire pr\u00e9coce.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les donn\u00e9es montrent que certains adultes de 40 ans pr\u00e9sentent une poigne comparable \u00e0 celle attendue vingt ans plus tard. L&rsquo;ob\u00e9sit\u00e9 sarcop\u00e9nique, qui associe exc\u00e8s de masse grasse et d\u00e9ficit musculaire, illustre bien cette \u00e9volution.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Agir t\u00f4t change tout. Le capital musculaire se constitue jusqu&rsquo;\u00e0 30 ans environ, et plus il est \u00e9lev\u00e9 au d\u00e9part, plus la marge avant d&rsquo;atteindre un seuil critique est confortable.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-5b69d354\"><h2 class=\"uagb-heading-text\">Comment reconna\u00eetre les sympt\u00f4mes de la sarcop\u00e9nie&nbsp;?<\/h2><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">La sarcop\u00e9nie ne fait pas mal, et c&rsquo;est ce qui la rend difficile \u00e0 rep\u00e9rer. Les signes touchent d&rsquo;abord les gestes du quotidien chez les personnes \u00e2g\u00e9es, bien avant de devenir visibles \u00e0 l&rsquo;\u0153il nu.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-423edbf0\"><h3 class=\"uagb-heading-text\">Les signes courants de la perte de masse et de force musculaire<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Les premiers signes sont fonctionnels avant d&rsquo;\u00eatre visibles. Porter ses courses devient p\u00e9nible, ouvrir un bocal demande de l&rsquo;aide, monter \u00e0 l&rsquo;\u00e9tage essouffle plus qu&rsquo;avant. Beaucoup de personnes s&rsquo;y habituent sans y voir un sympt\u00f4me.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La modification de la silhouette vient ensuite. Les bras et les cuisses s&rsquo;affinent, parfois sans rien changer sur la balance, le muscle perdu \u00e9tant remplac\u00e9 par de la masse grasse.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ces changements s&rsquo;installent si lentement qu&rsquo;on les attribue naturellement \u00e0 l&rsquo;\u00e2ge. C&rsquo;est pr\u00e9cis\u00e9ment ce qui retarde le diagnostic de sarcop\u00e9nie de plusieurs ann\u00e9es dans la plupart des cas.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-c0e964a3\"><h3 class=\"uagb-heading-text\">Diminution de la force de pr\u00e9hension<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">La force de pr\u00e9hension, mesur\u00e9e \u00e0 la main, constitue le marqueur le plus fiable. Elle refl\u00e8te la vigueur globale de l&rsquo;organisme et se mesure en quelques secondes avec un dynamom\u00e8tre.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les seuils de r\u00e9f\u00e9rence sont clairs&nbsp;: en dessous de 27 kg chez l&rsquo;homme et de 16 kg chez la femme, la sarcop\u00e9nie est probable et justifie des examens compl\u00e9mentaires.<sup>[1]<\/sup><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Au quotidien, ce d\u00e9ficit se manifeste par des gestes simples devenus difficiles. D\u00e9visser un couvercle, tenir un sac lourd, tourner une cl\u00e9 dans une serrure r\u00e9tive&nbsp;: autant d&rsquo;indices qui comptent.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-340b84ac\"><h3 class=\"uagb-heading-text\">Difficult\u00e9s \u00e0 se lever d&rsquo;une chaise ou \u00e0 monter les escaliers<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Se relever sans les mains est un test \u00e0 lui seul. Il mobilise les quadriceps et les fessiers, les premiers groupes musculaires touch\u00e9s par la fonte li\u00e9e \u00e0 l&rsquo;\u00e2ge.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Le test standardis\u00e9 consiste \u00e0 se lever cinq fois de suite d&rsquo;une chaise, bras crois\u00e9s sur la poitrine. Au-del\u00e0 de 15 secondes, la performance est consid\u00e9r\u00e9e comme alt\u00e9r\u00e9e.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">L&rsquo;escalier sollicite les m\u00eames muscles avec une contrainte suppl\u00e9mentaire. Devoir s&rsquo;aider de la rampe, marquer une pause \u00e0 mi-parcours, ces adaptations signalent une faiblesse install\u00e9e.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-e198b834\"><h3 class=\"uagb-heading-text\">Ralentissement de la marche et troubles de l&rsquo;\u00e9quilibre<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">La vitesse de marche est un indicateur remarquable de l&rsquo;\u00e9tat g\u00e9n\u00e9ral. Une vitesse inf\u00e9rieure ou \u00e9gale \u00e0 0,8 m\/s sur quatre m\u00e8tres traduit une atteinte des performances physiques.<sup>[1]<\/sup><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Concr\u00e8tement, cela revient \u00e0 ne plus pouvoir traverser un passage pi\u00e9ton pendant la dur\u00e9e du feu vert. Ce rep\u00e8re parle davantage que les chiffres, et beaucoup de personnes \u00e2g\u00e9es le constatent d&rsquo;elles-m\u00eames.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les pertes de stabilit\u00e9 accompagnent souvent ce ralentissement. Ils r\u00e9sultent de la faiblesse des muscles stabilisateurs et augmentent directement le risque de chutes.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-ce7ec41d\"><h3 class=\"uagb-heading-text\">Fatigue et sensation de faiblesse g\u00e9n\u00e9ralis\u00e9e<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Une fatigue inhabituelle lors d&rsquo;activit\u00e9s auparavant faciles constitue un signal d&rsquo;alerte. Elle traduit un muscle qui doit fournir un effort relatif plus important pour la m\u00eame t\u00e2che.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cette sensation de faiblesse s&rsquo;accompagne fr\u00e9quemment d&rsquo;une baisse de moral. Le lien fonctionne dans les deux sens, chacun entretenant l&rsquo;autre, ce qui rend la fragilit\u00e9 plus difficile \u00e0 enrayer.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Attention toutefois&nbsp;: la fatigue est un sympt\u00f4me non sp\u00e9cifique. Elle justifie une consultation m\u00e9dicale, sans permettre \u00e0 elle seule de conclure quoi que ce soit.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-f7cbef31\"><h2 class=\"uagb-heading-text\">Comment diagnostiquer la sarcop\u00e9nie&nbsp;?<\/h2><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Le diagnostic de sarcop\u00e9nie repose sur une d\u00e9marche en quatre temps, du d\u00e9pistage simple aux mesures instrument\u00e9es. Ces outils sont accessibles et permettent facilement de situer une personne par rapport aux seuils de r\u00e9f\u00e9rence.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-425f6b40\"><h3 class=\"uagb-heading-text\">Le questionnaire SARC-F&nbsp;: un outil de d\u00e9pistage<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Le SARC-F est un questionnaire de cinq questions, r\u00e9alisable en deux minutes. Il porte sur la force, l&rsquo;aide n\u00e9cessaire pour marcher, le lever de chaise, la mont\u00e9e des escaliers et les chutes r\u00e9centes.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Chaque item est cot\u00e9 de 0 \u00e0 2, pour un total de 10 points. Un score \u00e9gal ou sup\u00e9rieur \u00e0 4 \u00e9voque une sarcop\u00e9nie et justifie de poursuivre les investigations.<sup>[1]<\/sup><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cet outil ne pose pas de diagnostic, il oriente. Sa simplicit\u00e9 en fait un bon point de d\u00e9part pour aborder la sarcop\u00e9nie avec son m\u00e9decin, avant m\u00eame de consulter un sp\u00e9cialiste.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-654de91d\"><h3 class=\"uagb-heading-text\">\u00c9valuation de la force musculaire (tests, dynamom\u00e8tre)<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">La mesure au dynamom\u00e8tre est l&rsquo;\u00e9tape suivante. L&rsquo;appareil, tenu \u00e0 pleine main, enregistre la valeur maximale en kilogrammes, et l&rsquo;on retient la meilleure de trois tentatives.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Le test de lever de chaise compl\u00e8te cette \u00e9valuation lorsque le dynamom\u00e8tre n&rsquo;est pas disponible. Les deux approches donnent une image coh\u00e9rente de la force disponible.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ces mesures se r\u00e9p\u00e8tent facilement dans le temps. C&rsquo;est leur \u00e9volution sur plusieurs mois qui compte le plus, davantage qu&rsquo;une valeur isol\u00e9e.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-46f86806\"><h3 class=\"uagb-heading-text\">Mesure de la masse musculaire (anthropom\u00e9trie, bioimp\u00e9dancem\u00e9trie, imagerie)<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">La bioimp\u00e9dancem\u00e9trie est la technique la plus accessible. Elle estime la composition corporelle en faisant passer un courant de faible intensit\u00e9, et de nombreux cabinets en sont \u00e9quip\u00e9s.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">L&rsquo;absorptiom\u00e9trie biphotonique, ou DXA, offre une pr\u00e9cision sup\u00e9rieure. Elle sert de r\u00e9f\u00e9rence en recherche clinique, mais son acc\u00e8s reste limit\u00e9 en pratique courante.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les mesures anthropom\u00e9triques, comme la circonf\u00e9rence du mollet, offrent \u00e9galement un rep\u00e8re utile. Apr\u00e8s 70 ans, un tour de mollet inf\u00e9rieur \u00e0 31 cm peut constituer un signal d\u2019alerte facilement rep\u00e9rable.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-22940c39\"><h3 class=\"uagb-heading-text\">\u00c9valuation des performances physiques (Timed Up and Go, Short Physical Performance Battery)<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Le Timed Up and Go chronom\u00e8tre un encha\u00eenement complet&nbsp;: se lever de son si\u00e8ge, marcher trois m\u00e8tres, faire demi-tour, revenir et se rasseoir. Au-del\u00e0 de 20 secondes, les performances physiques sont alt\u00e9r\u00e9es.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La Short Physical Performance Battery combine trois \u00e9preuves&nbsp;: \u00e9quilibre debout, vitesse de marche et relev\u00e9s r\u00e9p\u00e9t\u00e9s. Le score total, sur 12 points, situe pr\u00e9cis\u00e9ment le niveau fonctionnel.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ces tests \u00e9valuent ce qui compte r\u00e9ellement pour la vie quotidienne. Un score bas pr\u00e9dit mieux la perte d&rsquo;autonomie que n&rsquo;importe quelle mesure de masse isol\u00e9e.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-d306eb1b\"><h3 class=\"uagb-heading-text\">Les recommandations de diagnostic EWGSOP (2010 et 2019)<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">La version de 2010 pla\u00e7ait la masse musculaire au centre du diagnostic. Une masse r\u00e9duite \u00e9tait n\u00e9cessaire pour retenir la sarcop\u00e9nie, la force n&rsquo;intervenant qu&rsquo;en second.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La r\u00e9vision de 2019 a invers\u00e9 cette logique.<sup>[1]<\/sup>&nbsp;La d\u00e9marche suit d\u00e9sormais quatre \u00e9tapes&nbsp;: suspecter par le SARC-F, confirmer par la force, valider par la masse, puis \u00e9valuer la gravit\u00e9 par les tests fonctionnels.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">On parle de sarcop\u00e9nie s\u00e9v\u00e8re lorsque les trois crit\u00e8res sont atteints simultan\u00e9ment&nbsp;: force diminu\u00e9e, masse r\u00e9duite et performances alt\u00e9r\u00e9es. Cette forme s\u00e9v\u00e8re appelle une prise en charge sans d\u00e9lai.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-c8352da4\"><h2 class=\"uagb-heading-text\">Sarcop\u00e9nie&nbsp;: les leviers de pr\u00e9vention<\/h2><\/div>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-202064e7\"><h3 class=\"uagb-heading-text\">L&rsquo;importance d&rsquo;une activit\u00e9 physique r\u00e9guli\u00e8re et adapt\u00e9e<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">L&rsquo;exercice contre r\u00e9sistance est le levier le plus efficace, sans \u00e9quivalent. Deux \u00e0 trois s\u00e9ances d&rsquo;activit\u00e9 physique hebdomadaires suffisent \u00e0 stimuler la synth\u00e8se prot\u00e9ique et \u00e0 maintenir la masse musculaire.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Travailler contre une charge ne signifie pas salle de sport obligatoire. \u00c9lastiques, poids du corps, bouteilles d&rsquo;eau, mont\u00e9es d&rsquo;escalier&nbsp;: le principe est de solliciter le muscle au-del\u00e0 de son habitude quotidienne.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">L&rsquo;exercice physique doit rester progressif, la r\u00e9gularit\u00e9 primant sur l&rsquo;intensit\u00e9. Commencer par des exercices simples, augmenter la charge peu \u00e0 peu, respecter les temps de r\u00e9cup\u00e9ration&nbsp;: c&rsquo;est la r\u00e9gularit\u00e9 dans la dur\u00e9e qui construit le r\u00e9sultat.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">L&rsquo;endurance compl\u00e8te utilement ce travail sans le remplacer. Marche rapide, v\u00e9lo ou natation entretiennent le syst\u00e8me cardiovasculaire, mais seul l&rsquo;effort contre charge construit du muscle.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-c4cd0444\"><h3 class=\"uagb-heading-text\">L&rsquo;apport prot\u00e9ique&nbsp;: combien, quand et dans quels aliments&nbsp;?<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Les recommandations sont revues \u00e0 la hausse pour les seniors. Le groupe PROT-AGE pr\u00e9conise 1,0 \u00e0 1,2 g de prot\u00e9ines par kg de poids corporel et par jour apr\u00e8s 65 ans.<sup>[2]<\/sup>&nbsp;C&rsquo;est nettement plus que les 0,83 g retenus chez l&rsquo;adulte jeune.<sup>[3]<\/sup><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">En cas de maladie aigu\u00eb ou chronique, ce besoin monte \u00e0 1,2 voire 1,5 g de prot\u00e9ines par kg de poids. Une personne de 70 kilos vise donc entre 70 et 105 g quotidiens selon son \u00e9tat.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La r\u00e9partition compte autant que la quantit\u00e9 totale. Viser 25 \u00e0 30 g de prot\u00e9ines \u00e0 chaque repas d\u00e9clenche mieux la synth\u00e8se musculaire qu&rsquo;un apport concentr\u00e9 sur le d\u00eener.<\/p>\n\n\n\r\n<section class=\"article-callout article-callout--takeaway panel summary-box\">\r\n\r\n    <div class=\"article-callout__header\">\r\n      <span class=\"article-callout__icon\" aria-hidden=\"true\">\r\n                  <svg width=\"24\" height=\"24\" viewBox=\"0 0 24 24\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\r\n            <path d=\"M5.14286 14C4.41735 12.8082 4 11.4118 4 9.91886C4 5.54539 7.58172 2 12 2C16.4183 2 20 5.54539 20 9.91886C20 11.4118 19.5827 12.8082 18.8571 14\" stroke=\"#98800B\" stroke-width=\"1.5\" stroke-linecap=\"round\"\/>\r\n            <path d=\"M7.38287 17.0982C7.291 16.8216 7.24507 16.6833 7.25042 16.5713C7.26174 16.3343 7.41114 16.1262 7.63157 16.0405C7.73579 16 7.88105 16 8.17157 16H15.8284C16.119 16 16.2642 16 16.3684 16.0405C16.5889 16.1262 16.7383 16.3343 16.7496 16.5713C16.7549 16.6833 16.709 16.8216 16.6171 17.0982C16.4473 17.6094 16.3624 17.8651 16.2315 18.072C15.9572 18.5056 15.5272 18.8167 15.0306 18.9408C14.7935 19 14.525 19 13.9881 19H10.0119C9.47495 19 9.2065 19 8.96944 18.9408C8.47283 18.8167 8.04281 18.5056 7.7685 18.072C7.63755 17.8651 7.55266 17.6094 7.38287 17.0982Z\" stroke=\"#98800B\" stroke-width=\"1.5\"\/>\r\n            <path d=\"M15 19L14.8707 19.6466C14.7293 20.3537 14.6586 20.7072 14.5001 20.9866C14.2552 21.4185 13.8582 21.7439 13.3866 21.8994C13.0816 22 12.7211 22 12 22C11.2789 22 10.9184 22 10.6134 21.8994C10.1418 21.7439 9.74484 21.4185 9.49987 20.9866C9.34144 20.7072 9.27073 20.3537 9.12932 19.6466L9 19\" stroke=\"#98800B\" stroke-width=\"1.5\"\/>\r\n            <path d=\"M12 16V11\" stroke=\"#98800B\" stroke-width=\"1.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\/>\r\n          <\/svg>\r\n                <\/span>\r\n\r\n      <p class=\"article-callout__title\">\r\n        Bon \u00e0 savoir      <\/p>\r\n    <\/div>\r\n\r\n    <div class=\"article-callout__content\">\r\n      \n<p class=\"wp-block-paragraph\">Les prot\u00e9ines contribuent au maintien de la masse musculaire, et elles contribuent \u00e9galement \u00e0 sa croissance. Ces deux propri\u00e9t\u00e9s reconnues en font le socle nutritionnel de toute pr\u00e9vention.<\/p>\n    <\/div>\r\n\r\n<\/section>\n\n\n<p class=\"wp-block-paragraph\">C\u00f4t\u00e9 aliments, viande, poisson, \u0153ufs, produits laitiers, l\u00e9gumineuses et c\u00e9r\u00e9ales compl\u00e8tes couvrent l&rsquo;essentiel.&nbsp;<a href=\"https:\/\/www.nutrixeal.fr\/235-proteines-en-poudre\">Les prot\u00e9ines en poudre<\/a>&nbsp;d\u00e9pannent quand l&rsquo;app\u00e9tit ne suit plus, en compl\u00e9ment des repas.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-8fd1b87f\"><h3 class=\"uagb-heading-text\">L&rsquo;importance de la vitamine D<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">La&nbsp;<a href=\"https:\/\/www.nutrixeal.fr\/67-vitamine-d3-vegetarienne\">vitamine D<\/a>&nbsp;occupe une place particuli\u00e8re dans ce dossier, avec deux propri\u00e9t\u00e9s reconnues qui concernent directement le sujet.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La premi\u00e8re est g\u00e9n\u00e9rale&nbsp;: la vitamine D contribue au maintien d&rsquo;une fonction musculaire normale. Elle intervient sur la contraction des fibres, ce qui explique son r\u00f4le dans la force disponible.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La seconde est plus rare et m\u00e9rite d&rsquo;\u00eatre cit\u00e9e pr\u00e9cis\u00e9ment. La vitamine D contribue \u00e0 r\u00e9duire le risque de chute associ\u00e9 \u00e0 la posture instable et \u00e0 la faiblesse musculaire, et cette diminution du risque de chute est b\u00e9n\u00e9fique pour les hommes et les femmes de 60 ans et plus.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cette propri\u00e9t\u00e9 s&rsquo;obtient avec un apport quotidien de 20 \u00b5g de vitamine D toutes sources confondues. Un dosage sanguin permet de situer votre niveau avant d&rsquo;ajuster, en accord avec votre m\u00e9decin.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-28931713\"><h3 class=\"uagb-heading-text\">Les autres nutriments essentiels<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">La cr\u00e9atine dispose d&rsquo;une propri\u00e9t\u00e9 reconnue directement adapt\u00e9e \u00e0 ce contexte. L&rsquo;utilisation quotidienne de cr\u00e9atine peut renforcer les effets de l&rsquo;entra\u00eenement contre r\u00e9sistance sur la force musculaire chez les adultes de plus de 55 ans.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Deux conditions accompagnent cette formulation&nbsp;: un apport de 3 g par jour, et surtout la pratique effective d&rsquo;un entra\u00eenement contre r\u00e9sistance. Sans exercice, la cr\u00e9atine seule ne produit pas cet effet.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D&rsquo;autres apports comptent enfin pour le fonctionnement du muscle. Le <a href=\"https:\/\/www.nutrixeal.fr\/66-magnesium\">magn\u00e9sium <\/a>contribue \u00e0 une fonction musculaire normale, et le calcium partage cette propri\u00e9t\u00e9.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-a238d29b\"><h2 class=\"uagb-heading-text\">Prise en charge de la sarcop\u00e9nie&nbsp;: les approches efficaces<\/h2><\/div>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-38a195ec\"><h3 class=\"uagb-heading-text\">Le programme d&rsquo;exercices adapt\u00e9&nbsp;: le c\u0153ur du traitement<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Aucun m\u00e9dicament n&rsquo;a fait ses preuves contre la sarcop\u00e9nie. L&rsquo;entra\u00eenement contre r\u00e9sistance reste la seule approche dont l&rsquo;efficacit\u00e9 soit solidement d\u00e9montr\u00e9e, y compris chez les personnes tr\u00e8s \u00e2g\u00e9es.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Un programme structur\u00e9 comporte 8 \u00e0 10 exercices sollicitant les grands groupes musculaires. Deux \u00e0 trois s\u00e9ances par semaine, deux \u00e0 trois s\u00e9ries de 8 \u00e0 12 r\u00e9p\u00e9titions, avec une charge progressivement augment\u00e9e.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les effets de cette pratique physique apparaissent apr\u00e8s huit \u00e0 douze semaines de r\u00e9gularit\u00e9. Des gains de force sont document\u00e9s m\u00eame apr\u00e8s 90 ans, ce qui doit encourager \u00e0 commencer quel que soit le point de d\u00e9part.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">L&rsquo;encadrement initial par un kin\u00e9sith\u00e9rapeute ou un professionnel de l&rsquo;activit\u00e9 physique s\u00e9curise la d\u00e9marche. Il ajuste les mouvements aux capacit\u00e9s r\u00e9elles et \u00e9vite les blessures.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-368a1f52\"><h3 class=\"uagb-heading-text\">La nutrition personnalis\u00e9e pour la r\u00e9cup\u00e9ration musculaire<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">L&rsquo;exercice sans prot\u00e9ines en quantit\u00e9 suffisante donne des r\u00e9sultats limit\u00e9s. Les deux approches se renforcent mutuellement, et c&rsquo;est leur association qui produit les meilleurs effets sur la masse musculaire.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Le moment de la prise a son importance. Consommer des prot\u00e9ines dans les deux heures qui suivent la s\u00e9ance favorise la r\u00e9cup\u00e9ration musculaire et la reconstruction des fibres sollicit\u00e9es.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les patients d\u00e9nutris n\u00e9cessitent un accompagnement sp\u00e9cifique. L&rsquo;enrichissement des plats en prot\u00e9ines et en \u00e9nergie, sans augmenter les volumes, peut \u00eatre mis en place avec l\u2019aide d\u2019un di\u00e9t\u00e9ticien.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-70c095c1\"><h3 class=\"uagb-heading-text\">Les compl\u00e9ments alimentaires&nbsp;: quand et lesquels utiliser&nbsp;?<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Disons-le sans d\u00e9tour&nbsp;: aucun compl\u00e9ment ne fait dispara\u00eetre la sarcop\u00e9nie. Ils servent \u00e0 couvrir des apports insuffisants, ce qui n&rsquo;a de sens que combin\u00e9 \u00e0 un entra\u00eenement adapt\u00e9.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trois cat\u00e9gories sortent du lot pour cette raison. Les prot\u00e9ines quand l&rsquo;alimentation ne couvre pas les besoins, la vitamine D en cas de statut bas, la cr\u00e9atine chez qui pratique effectivement un entra\u00eenement.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La qualit\u00e9 des produits m\u00e9rite attention. V\u00e9rifiez la teneur r\u00e9elle, la qualit\u00e9 de la source et l&rsquo;absence d&rsquo;additifs superflus dans la composition.<\/p>\n\n\n\r\n<section class=\"article-callout article-callout--takeaway panel summary-box\">\r\n\r\n    <div class=\"article-callout__header\">\r\n      <span class=\"article-callout__icon\" aria-hidden=\"true\">\r\n                  <svg width=\"24\" height=\"24\" viewBox=\"0 0 24 24\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\r\n            <path d=\"M5.14286 14C4.41735 12.8082 4 11.4118 4 9.91886C4 5.54539 7.58172 2 12 2C16.4183 2 20 5.54539 20 9.91886C20 11.4118 19.5827 12.8082 18.8571 14\" stroke=\"#98800B\" stroke-width=\"1.5\" stroke-linecap=\"round\"\/>\r\n            <path d=\"M7.38287 17.0982C7.291 16.8216 7.24507 16.6833 7.25042 16.5713C7.26174 16.3343 7.41114 16.1262 7.63157 16.0405C7.73579 16 7.88105 16 8.17157 16H15.8284C16.119 16 16.2642 16 16.3684 16.0405C16.5889 16.1262 16.7383 16.3343 16.7496 16.5713C16.7549 16.6833 16.709 16.8216 16.6171 17.0982C16.4473 17.6094 16.3624 17.8651 16.2315 18.072C15.9572 18.5056 15.5272 18.8167 15.0306 18.9408C14.7935 19 14.525 19 13.9881 19H10.0119C9.47495 19 9.2065 19 8.96944 18.9408C8.47283 18.8167 8.04281 18.5056 7.7685 18.072C7.63755 17.8651 7.55266 17.6094 7.38287 17.0982Z\" stroke=\"#98800B\" stroke-width=\"1.5\"\/>\r\n            <path d=\"M15 19L14.8707 19.6466C14.7293 20.3537 14.6586 20.7072 14.5001 20.9866C14.2552 21.4185 13.8582 21.7439 13.3866 21.8994C13.0816 22 12.7211 22 12 22C11.2789 22 10.9184 22 10.6134 21.8994C10.1418 21.7439 9.74484 21.4185 9.49987 20.9866C9.34144 20.7072 9.27073 20.3537 9.12932 19.6466L9 19\" stroke=\"#98800B\" stroke-width=\"1.5\"\/>\r\n            <path d=\"M12 16V11\" stroke=\"#98800B\" stroke-width=\"1.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\/>\r\n          <\/svg>\r\n                <\/span>\r\n\r\n      <p class=\"article-callout__title\">\r\n        Bon \u00e0 savoir      <\/p>\r\n    <\/div>\r\n\r\n    <div class=\"article-callout__content\">\r\n      \n<p class=\"wp-block-paragraph\">Une suppl\u00e9mentation prise sans entra\u00eenement adapt\u00e9 donne des r\u00e9sultats tr\u00e8s modestes. L&rsquo;ordre des priorit\u00e9s est toujours le m\u00eame&nbsp;: exercices d&rsquo;abord, prot\u00e9ines ensuite, compl\u00e9ments en soutien.<\/p>\n    <\/div>\r\n\r\n<\/section>\n\n\n<p class=\"wp-block-paragraph\">Une prot\u00e9ine de bonne qualit\u00e9 apporte par ailleurs l&rsquo;ensemble des acides amin\u00e9s indispensables. C&rsquo;est ce crit\u00e8re, plus que le dosage affich\u00e9, qui distingue les produits s\u00e9rieux.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-22c4edd1\"><h3 class=\"uagb-heading-text\">Le suivi m\u00e9dical et la prise en charge multidisciplinaire<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Le m\u00e9decin traitant coordonne l&rsquo;ensemble. Il recherche les causes traitables, ajuste les traitements en cours et oriente vers les professionnels de sant\u00e9 n\u00e9cessaires selon la situation.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">L&rsquo;\u00e9quipe se compose souvent d&rsquo;un kin\u00e9sith\u00e9rapeute, d&rsquo;un di\u00e9t\u00e9ticien et parfois d&rsquo;un g\u00e9riatre. Cette approche coordonn\u00e9e donne de meilleurs r\u00e9sultats que des interventions isol\u00e9es.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Le suivi repose sur des mesures r\u00e9p\u00e9t\u00e9es&nbsp;: force de pr\u00e9hension, vitesse de marche, poids. Ces donn\u00e9es objectives permettent d&rsquo;ajuster le programme plut\u00f4t que de naviguer \u00e0 vue.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N&rsquo;h\u00e9sitez pas \u00e0 prendre contact avec votre m\u00e9decin d\u00e8s les premiers signes. Plus la prise en charge est pr\u00e9coce, plus les chances d&rsquo;am\u00e9liorer la fonction musculaire sont \u00e9lev\u00e9es.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-e26af13c\"><h2 class=\"uagb-heading-text\">Quelles sont les cons\u00e9quences et complications de la sarcop\u00e9nie&nbsp;?<\/h2><\/div>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-46a6f772\"><h3 class=\"uagb-heading-text\">Augmentation du risque de chutes et de fractures<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">C&rsquo;est la complication la plus imm\u00e9diate. La faiblesse des muscles stabilisateurs et l&rsquo;instabilit\u00e9 posturale multiplient les chutes, dont la fr\u00e9quence augmente nettement chez les personnes \u00e2g\u00e9es concern\u00e9es.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La gravit\u00e9 tient \u00e0 ce qui suit. Une fracture du col du f\u00e9mur entra\u00eene souvent une perte d&rsquo;autonomie durable, et la sarcop\u00e9nie est associ\u00e9e \u00e0 un risque accru de complications apr\u00e8s ce type d&rsquo;accident.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La peur de tomber cr\u00e9e un cercle vicieux redoutable. Elle r\u00e9duit les d\u00e9placements, ce qui acc\u00e9l\u00e8re la fonte musculaire, ce qui fragilise encore davantage.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-4c0069a0\"><h3 class=\"uagb-heading-text\">Diminution de l&rsquo;autonomie et de la mobilit\u00e9<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Chez les personnes touch\u00e9es par la sarcop\u00e9nie, la perte d&rsquo;autonomie suit une progression pr\u00e9visible. Les activit\u00e9s les plus exigeantes disparaissent en premier, puis les d\u00e9placements ext\u00e9rieurs se r\u00e9duisent, et enfin les gestes du quotidien deviennent difficiles.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Le seuil critique se situe autour de la capacit\u00e9 \u00e0 se lever seul. Quand ce geste devient impossible sans aide, le risque de perte d&rsquo;autonomie compl\u00e8te devient concret et le maintien \u00e0 domicile est menac\u00e9.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La qualit\u00e9 de vie se d\u00e9grade bien avant ce stade. Renoncer \u00e0 ses activit\u00e9s, \u00e0 ses sorties, \u00e0 sa vie sociale p\u00e8se lourdement sur le moral et amplifie la fragilit\u00e9 g\u00e9n\u00e9rale.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-3c2b1c5e\"><h3 class=\"uagb-heading-text\">Augmentation de la dur\u00e9e d&rsquo;hospitalisation et des risques infectieux<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">La masse musculaire constitue une r\u00e9serve d&rsquo;acides amin\u00e9s que l&rsquo;organisme mobilise en cas d&rsquo;agression. Un stock r\u00e9duit limite cette capacit\u00e9 de r\u00e9ponse face \u00e0 une infection ou apr\u00e8s une intervention.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les r\u00e9sultats sont mesurables&nbsp;: la dur\u00e9e d&rsquo;hospitalisation s&rsquo;allonge, les complications sont plus fr\u00e9quentes, et la sarcop\u00e9nie est associ\u00e9e \u00e0 une mortalit\u00e9 plus \u00e9lev\u00e9e dans plusieurs \u00e9tudes.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Chaque hospitalisation aggrave ensuite le probl\u00e8me. L&rsquo;immobilisation prolong\u00e9e acc\u00e9l\u00e8re la fonte musculaire, ce qui explique l&rsquo;importance de la mobilisation pr\u00e9coce en milieu hospitalier.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-a0ac9d90\"><h3 class=\"uagb-heading-text\">Impact sur le d\u00e9clin cognitif et la fragilit\u00e9 g\u00e9n\u00e9rale<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Le muscle et le cerveau vieillissent de concert. Les \u00e9tudes observent une association entre force musculaire r\u00e9duite et d\u00e9clin cognitif, sans que le lien de causalit\u00e9 soit \u00e9tabli dans un sens ou dans l&rsquo;autre.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La sarcop\u00e9nie s&rsquo;inscrit dans le syndrome de fragilit\u00e9, qui associe faiblesse, lenteur, \u00e9puisement, perte de poids et activit\u00e9 r\u00e9duite. Cette fragilit\u00e9 pr\u00e9dit les \u00e9v\u00e9nements de sant\u00e9 d\u00e9favorables mieux que l&rsquo;\u00e2ge seul.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ce tableau n&rsquo;a rien d&rsquo;in\u00e9luctable. Gr\u00e2ce \u00e0 des exercices r\u00e9guliers et adapt\u00e9s, l&rsquo;ensemble de ces dimensions s&rsquo;am\u00e9liore, ce qui en fait le meilleur investissement \u00e0 long terme pour rester en bonne sant\u00e9.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-8ac910a3\"><h2 class=\"uagb-heading-text\">Sources<\/h2><\/div>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Cruz-Jentoft AJ et al. Sarcopenia: revised European consensus on definition and diagnosis. Age and Ageing, 2019.<\/li>\n\n\n\n<li>Bauer J et al. Evidence-based recommendations for optimal dietary protein intake in older people: a position paper from the PROT-AGE Study Group. Journal of the American Medical Directors Association, 2013.<\/li>\n\n\n\n<li>Anses. Les r\u00e9f\u00e9rences nutritionnelles en prot\u00e9ines. Rapport d&rsquo;expertise collective.<\/li>\n<\/ol>\n\n\n\n\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"<p>Apr\u00e8s 30 ans, le corps perd du muscle chaque ann\u00e9e sans que rien ne le signale. Cette fonte musculaire progressive porte un nom, la sarcop\u00e9nie, et elle n&rsquo;a rien d&rsquo;une fatalit\u00e9. Comprendre ses m\u00e9canismes permet d&rsquo;agir t\u00f4t, sur les deux seuls leviers qui fonctionnent vraiment. Qu&rsquo;est-ce que la sarcop\u00e9nie&nbsp;? D\u00e9finition et enjeux La sarcop\u00e9nie d\u00e9signe [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":1253,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","nutrixeal_featured":false,"nutrixeal_most_read":false,"footnotes":""},"categories":[22,50],"tags":[],"class_list":["post-1248","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-articles-articulations","category-articles-proteines"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Sarcop\u00e9nie : que faire pour lutter contre la perte musculaire ?<\/title>\n<meta name=\"description\" content=\"D\u00e9couvrez la sarcop\u00e9nie : causes, sympt\u00f4mes et comment pr\u00e9venir cette perte musculaire li\u00e9e \u00e0 l&#039;\u00e2ge pour rester fort et en forme.\" \/>\n<meta name=\"robots\" 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