{"id":18815,"date":"2017-02-08T15:00:22","date_gmt":"2017-02-08T13:00:22","guid":{"rendered":"https:\/\/new-fitadium.synten.com\/TheGoodFit\/?p=18815"},"modified":"2025-04-08T16:42:32","modified_gmt":"2025-04-08T14:42:32","slug":"carnitine-croissance-musculaire-force","status":"publish","type":"post","link":"https:\/\/www.fitadium.com\/conseils\/carnitine-croissance-musculaire-force\/","title":{"rendered":"La L-carnitine booster de croissance musculaire et de force ?"},"content":{"rendered":"\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"995\" height=\"500\" src=\"\/conseils\/wp-content\/uploads\/2017\/02\/carnitine-croissance-musculaire-force-1.jpg\" alt=\"\" class=\"wp-image-30468\"\/><\/figure><\/div>\n\n\n\n<p><strong>Plus connue comme <\/strong><a href=\"\/56-bruleurs-de-graisse\"><strong>br\u00fbleur de graisses non stimulant<\/strong><\/a><strong>, la carnitine pourrait peut-\u00eatre \u00e9galement influencer la croissance musculaire et la force. M\u00eame si l\u2019\u00e9tude a \u00e9t\u00e9 men\u00e9e chez des personnes d\u2019un certain \u00e2ge, et en association avec d\u2019autres mol\u00e9cules, il n\u2019en reste pas moins que cette propri\u00e9t\u00e9 est int\u00e9ressante.<\/strong><\/p>\n\n\n<h2 class=\"has-number\">Agir contre la fonte des muscles <\/h2>\n\n\n<div class=\"columns-quote is-\">\n  <div class=\"columns-quote__quote\">\n    <blockquote>A partir de 50 ans nous perdons 1% \u00e0 2% de nos muscles chaque ann\u00e9e<\/blockquote>\n  <\/div>\n  <div class=\"columns-quote__body\">\n    \n\n<p class=\"has-large-font-size\">Les ann\u00e9es passent et signifient perte de masse musculaire de fa\u00e7on in\u00e9luctable. La fonte des muscles est un signe de vieillissement et ce d\u00e9clin commence \u00e0 se faire sentir d\u00e8s 50 ans, premier cap, \u00e0 partir duquel nous perdons chaque ann\u00e9e <strong>1% \u00e0 2% de nos muscles<\/strong>. C\u00f4t\u00e9 force, c\u2019est une diminution de 1,5% chaque ann\u00e9e et l\u2019\u00e9volution continue apr\u00e8s le cap des 60 ans avec carr\u00e9ment 3% de force en moins par ann\u00e9e ! <\/p>\n\n\n  <\/div>\n<\/div>\n\n\n\n<p>L\u2019\u00e9tude, men\u00e9e en double aveugle sur 8 semaines, a port\u00e9 sur 42 adultes de 55 \u00e0 70 ans, r\u00e9partis en 3 groupes recevant au hasard: un placebo, de <a href=\"https:\/\/www.fitadium.com\/401-l-carnitine\">la carnitine<\/a> seule, ou bien un m\u00e9lange de carnitine (1500 mg), leucine (2000 mg), cr\u00e9atine (3000 mg) et vitamine D3 (10 mcg). L\u2019\u00e9tude a d\u00e9montr\u00e9 que <strong>la suppl\u00e9mentation en carnitine pouvait augmenter la masse musculaire maigre et la force<\/strong> des jambes parmi ce dernier groupe de sujets.<br>Il a \u00e9t\u00e9 mesur\u00e9 une augmentation de l\u2019expression de mTOR qui provoque la cr\u00e9ation de nouvelles cellules musculaires en boostant la synth\u00e8se des prot\u00e9ines, suite \u00e0 la suppl\u00e9mentation en carnitine incluse dans le groupe ayant re\u00e7u le m\u00e9lange.<\/p>\n\n\n<div class=\"columns-push-product\">\n  <div class=\"columns-push-product__body\">\n    \n\n<p class=\"has-large-font-size\"><strong>Carnitine + Choline pour des effets d\u00e9cupl\u00e9s <\/strong><\/p>\n\n\n  <\/div>\n  <div class=\"columns-push-product__product\">\n    <div class=\"product\" GTM-data-id=\"1630\" GTM-data-nom=\"CARNI MAX (60 Caps)\">\n  <div class=\"product__img\" style=\"width: -webkit-fill-available;\">\n    <a href=\"https:\/\/www.fitadium.com\/1630-carni-max-60-caps.html\" class=\"product__image_lnk GTM_blog_product\" >\n      <img decoding=\"async\" src=\"https:\/\/www.fitadium.com\/31784-fit_540\/carni-max-60-caps.jpg\" alt=\"\" class=\"product__image lazyload\">\n    <\/a>\n  <\/div>\n  <div class=\"product__body\">\n        <div class=\"product__brand\">Superset Nutrition<\/div>\n    <a class=\"product__name GTM_blog_product\" href=\"https:\/\/www.fitadium.com\/1630-carni-max-60-caps.html\" title=\"CARNI MAX (60 Caps)\">\n      CARNI MAX (60 Caps)\n    <\/a>\n          <span class=\"product__price\">25.9 \u20ac<\/span>\n            <div class=\"product__excerpt\">Pourquoi choisir le CARNI MAX (60 CAPS) ? CARNI MAX\u2026<\/div>\n            <div><a class=\"product__cta GTM_blog_product\" href=\"https:\/\/www.fitadium.com\/1630-carni-max-60-caps.html\" title=\"CARNI MAX (60 Caps)\">Voir le produit<\/a><\/div>\n  <\/div>\n<\/div>\n  <\/div>\n<\/div>\n\n\n<h2 class=\"has-number\">A quoi sert la L-carnitine ?<\/h2>\n\n\n\n<p>La L-carnitine est un <strong>acide amin\u00e9<\/strong> pr\u00e9sent dans le muscle squelettique, qui joue un r\u00f4le dans le m\u00e9tabolisme \u00e9nerg\u00e9tique \u00e0 partir des graisses, des glucides et des prot\u00e9ines.&nbsp;Elle&nbsp;augmente \u00e9galement la biosynth\u00e8se des prot\u00e9ines en \u00e9pargnant l&rsquo;utilisation des acides amin\u00e9s lors de&nbsp;la production d&rsquo;\u00e9nergie et supprime les g\u00e8nes responsables de la d\u00e9gradation des prot\u00e9ines dans le muscle squelettique&nbsp;et des \u00e9l\u00e9ments impliqu\u00e9s dans le catabolisme des prot\u00e9ines.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>La carnitine aurait donc un effet chronique sur l\u2019anabolisme des prot\u00e9ines<\/p><\/blockquote>\n\n\n\n<p>Cela se traduit par une augmentation visible et mesurable de la masse musculaire et de la force, surtout en association avec d\u2019autres ingr\u00e9dients ayant eux aussi un r\u00f4le \u00e0 jouer sur le gain de force et de masse. L\u2019am\u00e9lioration constat\u00e9e, par rapport au groupe de contr\u00f4le recevant le placebo, a \u00e9t\u00e9 de<strong> +63,5% <\/strong>mesurant \u00e0 la fois la perte de masse musculaire, la perte de force et la baisse de l\u2019activit\u00e9 physique.<\/p>\n\n\n<div class=\"columns-quote is-\">\n  <div class=\"columns-quote__quote\">\n    <blockquote>Augmentation de la masse musculaire d&rsquo;1 kg<\/blockquote>\n  <\/div>\n  <div class=\"columns-quote__body\">\n    \n\n<p class=\"has-large-font-size\">\n\nLe groupe carnitine seule n\u2019a pas obtenu de tels r\u00e9sultats. Toutefois, on a pu mesurer \u00e9galement chez le groupe ayant re\u00e7u la combinaison de suppl\u00e9ments, une augmentation de la masse musculaire totale d\u20191 kg, une croissance de la masse maigre de 0,35 kg au niveau des jambes ainsi qu\u2019une augmentation significative de la force d\u20191 kg \u00e9galement sur les muscles des jambes.\n\n<\/p>\n\n\n  <\/div>\n<\/div>\n\n\n<div class=\"columns-push-product\">\n  <div class=\"columns-push-product__body\">\n    \n\n<p class=\"has-large-font-size\"><strong>Le shot parfait de L-Carnitine<\/strong><\/p>\n\n\n  <\/div>\n  <div class=\"columns-push-product__product\">\n    <div class=\"product\" GTM-data-id=\"4721\" GTM-data-nom=\"CARNITINE SHOT (12X60ML)\">\n  <div class=\"product__img\" style=\"width: -webkit-fill-available;\">\n    <a href=\"https:\/\/www.fitadium.com\/4721-carnitine-shot-12x60ml.html#\/296-gout-tropical\" class=\"product__image_lnk GTM_blog_product\" >\n      <img decoding=\"async\" src=\"https:\/\/www.fitadium.com\/24326-fit_540\/carnitine-shot-12x60ml.jpg\" alt=\"\" class=\"product__image lazyload\">\n    <\/a>\n  <\/div>\n  <div class=\"product__body\">\n        <div class=\"product__brand\">Superset Nutrition<\/div>\n    <a class=\"product__name GTM_blog_product\" href=\"https:\/\/www.fitadium.com\/4721-carnitine-shot-12x60ml.html#\/296-gout-tropical\" title=\"CARNITINE SHOT (12X60ML)\">\n      CARNITINE SHOT (12X60ML)\n    <\/a>\n          <span class=\"product__price\">29.9 \u20ac<\/span>\n            <div class=\"product__excerpt\">Id\u00e9al pour accompagner tes s\u00e9ances intenses La bo\u00eete de\u00a0CARNITINE shot\u2026<\/div>\n            <div><a class=\"product__cta GTM_blog_product\" href=\"https:\/\/www.fitadium.com\/4721-carnitine-shot-12x60ml.html#\/296-gout-tropical\" title=\"CARNITINE SHOT (12X60ML)\">Voir le produit<\/a><\/div>\n  <\/div>\n<\/div>\n  <\/div>\n<\/div>\n\n\n<h2 class=\"has-number\">Que retenir ? <\/h2>\n\n\n\n<p>En conclusion, la carnitine, en combinaison avec la leucine et la cr\u00e9atine a vraisemblablement un r\u00f4le \u00e0 jouer par le biais de la voie mTOR, permettant d\u2019<strong>am\u00e9liorer la synth\u00e8se des prot\u00e9ines <\/strong>et donc l\u2019anabolisme, se traduisant par une masse musculaire accrue et une force fonctionnelle plus \u00e9lev\u00e9e comme en t\u00e9moignent les mesures faites au terme des 8 semaines de programme chez ces personnes d\u2019un certain \u00e2ge.<br>Cela signifie que nous aurions tous int\u00e9r\u00eat, m\u00eame si nous sommes encore jeunes, \u00e0 ajouter la carnitine \u00e0 notre liste de suppl\u00e9ments, si on consid\u00e8re qu\u2019elle interagit avec d\u2019autres suppl\u00e9ments pour <strong>favoriser le d\u00e9veloppement de la masse musculaire<\/strong> et emp\u00eacher la perte musculaire, surtout en p\u00e9riode de r\u00e9gime ou en cas d\u2019effort cardio r\u00e9p\u00e9t\u00e9 pouvant conduire \u00e0 une perte de masse maigre.<\/p>\n\n\n<div class=\"columns-push-product\">\n  <div class=\"columns-push-product__body\">\n    \n\n<p class=\"has-large-font-size\"><strong>&nbsp;Un v\u00e9ritable recyclage de graisses en \u00e9nergie<\/strong><\/p>\n\n\n  <\/div>\n  <div class=\"columns-push-product__product\">\n    <div class=\"product\" GTM-data-id=\"3719\" GTM-data-nom=\"L-carnitine xplode powder (300g)\">\n  <div class=\"product__img\" style=\"width: -webkit-fill-available;\">\n    <a href=\"https:\/\/www.fitadium.com\/3719-l-carnitine-xplode-powder-300g.html#\/1083-gout-cerise\" class=\"product__image_lnk GTM_blog_product\" >\n      <img decoding=\"async\" src=\"https:\/\/www.fitadium.com\/13680-fit_540\/l-carnitine-xplode-powder-300g.jpg\" alt=\"\" class=\"product__image lazyload\">\n    <\/a>\n  <\/div>\n  <div class=\"product__body\">\n        <div class=\"product__brand\">Olimp Sport Nutrition<\/div>\n    <a class=\"product__name GTM_blog_product\" href=\"https:\/\/www.fitadium.com\/3719-l-carnitine-xplode-powder-300g.html#\/1083-gout-cerise\" title=\"L-carnitine xplode powder (300g)\">\n      L-carnitine xplode powder (300g)\n    <\/a>\n          <span class=\"product__price\">54.9 \u20ac<\/span>\n            <div class=\"product__excerpt\">L-Carnitine Xplode est un compl\u00e9ment alimentaire qui va t&#039;accompagner dans\u2026<\/div>\n            <div><a class=\"product__cta GTM_blog_product\" href=\"https:\/\/www.fitadium.com\/3719-l-carnitine-xplode-powder-300g.html#\/1083-gout-cerise\" title=\"L-carnitine xplode powder (300g)\">Voir le produit<\/a><\/div>\n  <\/div>\n<\/div>\n  <\/div>\n<\/div>\n\n\n<div class=\"columns-push-product\">\n  <div class=\"columns-push-product__body\">\n    \n\n<p class=\"has-large-font-size\"><\/p>\n\n\n  <\/div>\n  <div class=\"columns-push-product__product\">\n    <div class=\"product\" GTM-data-id=\"3996\" GTM-data-nom=\"L-carnitine 750 mg (400 caps)\">\n  <div class=\"product__img\" style=\"width: -webkit-fill-available;\">\n    <a href=\"https:\/\/www.fitadium.com\/3996-l-carnitine-750-mg-400-caps.html\" class=\"product__image_lnk GTM_blog_product\" >\n      <img decoding=\"async\" src=\"https:\/\/www.fitadium.com\/16431-fit_540\/l-carnitine-750-mg-400-caps.jpg\" alt=\"\" class=\"product__image lazyload\">\n    <\/a>\n  <\/div>\n  <div class=\"product__body\">\n        <div class=\"product__brand\">Addict Sport Nutrition<\/div>\n    <a class=\"product__name GTM_blog_product\" href=\"https:\/\/www.fitadium.com\/3996-l-carnitine-750-mg-400-caps.html\" title=\"L-carnitine 750 mg (400 caps)\">\n      L-carnitine 750 mg (400 caps)\n    <\/a>\n          <span class=\"product__price\">46.9 \u20ac<\/span>\n            <div class=\"product__excerpt\">La\u00a0L-carnitine 750 mg (400 caps) est une substance saine et\u2026<\/div>\n            <div><a class=\"product__cta GTM_blog_product\" href=\"https:\/\/www.fitadium.com\/3996-l-carnitine-750-mg-400-caps.html\" title=\"L-carnitine 750 mg (400 caps)\">Voir le produit<\/a><\/div>\n  <\/div>\n<\/div>\n  <\/div>\n<\/div>\n\n\n\n<p><strong>Sources<\/strong>: <a href=\"https:\/\/nutritionandmetabolism.biomedcentral.com\/articles\/10.1186\/s12986-016-0158-y\">Nutrition &amp; Metabolism<\/a> 2017, 14:7, doi: 10.1186\/s12986-016-0158-y&nbsp;\u201c<a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/pubmed\/28115977\">Efficacy of a novel formulation of L-Carnitine, creatine, and leucine on lean body mass and functional muscle strength in healthy older adults: a randomized, double-blind placebo-controlled study<\/a>\u201d&nbsp;Authors: M. Evans et al. Photo&nbsp;Shutterstock.com\/Vadim Ivanov<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Plus connue comme br\u00fbleur de graisses non stimulant, la carnitine pourrait peut-\u00eatre \u00e9galement influencer la croissance musculaire et la force. M\u00eame si l\u2019\u00e9tude a \u00e9t\u00e9 men\u00e9e chez des personnes d\u2019un certain \u00e2ge, et en association avec d\u2019autres mol\u00e9cules, il n\u2019en reste pas moins que cette propri\u00e9t\u00e9 est int\u00e9ressante. L\u2019\u00e9tude, men\u00e9e en double aveugle sur 8 [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":30468,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1876],"tags":[458,341,71,41,61],"post_theme":[1905],"class_list":null,"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v17.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>R\u00f4le de la carnitine dans la masse musculaire et force<\/title>\n<meta name=\"description\" content=\"Les derni\u00e8res \u00e9tudes scientifiques mentionnant la carnitine et son r\u00f4le dans le maintien de la masse musculaire et la force chez les sujets \u00e2g\u00e9s.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.fitadium.com\/conseils\/carnitine-croissance-musculaire-force\/\" \/>\n<meta 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