{"id":5871,"date":"2023-02-23T13:20:46","date_gmt":"2023-02-23T13:20:46","guid":{"rendered":"https:\/\/www.africa-press.net\/guinee-equatoriale\/politique\/comment-le-jus-de-betterave-peut-doper-votre-performance-sportive"},"modified":"2023-02-23T14:34:53","modified_gmt":"2023-02-23T14:34:53","slug":"comment-le-jus-de-betterave-peut-doper-votre-performance-sportive","status":"publish","type":"post","link":"https:\/\/www.africa-press.net\/guinee-equatoriale\/toutes-les-actualites\/comment-le-jus-de-betterave-peut-doper-votre-performance-sportive","title":{"rendered":"Comment le jus de betterave peut doper votre performance sportive"},"content":{"rendered":"

Africa-Press – Guinee Equatoriale. <\/strong><\/span>Des chercheurs britanniques ont trouve\u0301 pourquoi, peu avant une e\u0301preuve sportive, on peut augmenter sa force musculaire en prenant du jus de betterave. Ils soupc\u0327onnaient le ro\u0302le des ions nitrates pre\u0301sents en forte quantite\u0301 dans la betterave et connus pour faciliter l\u2019activite\u0301 musculaire. Pour le ve\u0301rifier, les chercheurs ont fait absorber par des volontaires une dose de nitrate de potassium marque\u0301 par un isotope radioactif de l\u2019azote correspondant a\u0300 un kilo de betterave, puis ils ont e\u0301tudie\u0301 son devenir dans l\u2019organisme humain au cours des heures suivantes. Une expe\u0301rience rapporte\u0301e dans la revue Acta Physiologica.<\/p>\n

Le ro\u0302le des ions nitrates<\/b><\/p>\n

Ils ont constate\u0301 que les concentrations en ions nitrates augmentaient non seulement dans le sang et la salive, mais aussi dans les muscles squelettiques. Ces concentrations diminuaient uniquement dans les muscles mobilise\u0301s chez les volontaires a\u0300 qui l\u2019on avait demande\u0301 d\u2019effectuer un exercice physique rapide. Chez les sujets qui avaient absorbe\u0301 un liquide te\u0301moin sans nitrates, aucun effet sur la force musculaire n\u2019a e\u0301te\u0301 observe\u0301 au cours du me\u0302me exercice.<\/p>\n

Il n\u2019y a pas que la betterave qui dope les performances musculaires !<\/b><\/p>\n

Les muscles sont donc capables de capter les nitrates issus de l\u2019alimentation et de s\u2019en servir lors de l\u2019effort musculaire, probablement pour produire des ions NO connus pour favoriser la vasodilatation, la respiration et la contraction, en concluent les chercheurs de l\u2019e\u0301cole de me\u0301decine de l\u2019universite\u0301 d\u2019Exeter. La betterave n\u2019est pas le seul le\u0301gume a\u0300 e\u0302tre riche en nitrates, c\u2019est aussi le cas du radis, de la laitue et plus encore de la roquette, sans oublier les e\u0301pinards qui dopaient les performances musculaires de Popeye, le he\u0301ros de bande dessine\u0301e !<\/p>\n

Pour plus d’informations et d’analyses sur la Guinee Equatoriale<\/a>, suivez Africa-Press<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

Africa-Press – Guinee Equatoriale. Des chercheurs britanniques ont trouve\u0301 pourquoi, peu avant une e\u0301preuve sportive, on peut augmenter sa force musculaire en prenant du jus de betterave. Ils soupc\u0327onnaient le ro\u0302le des ions nitrates pre\u0301sents en forte quantite\u0301 dans la betterave et connus pour faciliter l\u2019activite\u0301 musculaire. Pour le ve\u0301rifier, les chercheurs ont fait absorber […]<\/p>\n","protected":false},"author":82,"featured_media":5870,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,10],"tags":[36,49,50],"class_list":["post-5871","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-divers","category-toutes-les-actualites","tag-africa-press","tag-africa-press-guinee-equatoriale","tag-guinee-equatoriale"],"yoast_head":"\nComment le jus de betterave peut doper votre performance sportive - Guin\u00e9e \u00e9quatoriale<\/title>\n<meta name=\"description\" content=\"Des chercheurs britanniques ont trouve\u0301 pourquoi, peu avant une e\u0301preuve sportive, on peut augmenter sa force musculaire ...\" \/>\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.africa-press.net\/guinee-equatoriale\/toutes-les-actualites\/comment-le-jus-de-betterave-peut-doper-votre-performance-sportive\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Comment le jus de betterave peut doper votre performance sportive\" \/>\n<meta property=\"og:description\" content=\"Des chercheurs britanniques ont trouve\u0301 pourquoi, peu avant une e\u0301preuve sportive, on peut augmenter sa force musculaire ...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.africa-press.net\/guinee-equatoriale\/toutes-les-actualites\/comment-le-jus-de-betterave-peut-doper-votre-performance-sportive\" \/>\n<meta property=\"og:site_name\" content=\"Guin\u00e9e \u00e9quatoriale\" \/>\n<meta property=\"article:published_time\" content=\"2023-02-23T13:20:46+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-02-23T14:34:53+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/static.africa-press.net\/guinee-equatoriale\/sites\/53\/2023\/02\/postQueueImg_1677145878.12.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"899\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"cfeditorfr\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"cfeditorfr\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.africa-press.net\/guinee-equatoriale\/toutes-les-actualites\/comment-le-jus-de-betterave-peut-doper-votre-performance-sportive#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.africa-press.net\/guinee-equatoriale\/toutes-les-actualites\/comment-le-jus-de-betterave-peut-doper-votre-performance-sportive\"},\"author\":{\"name\":\"cfeditorfr\",\"@id\":\"https:\/\/www.africa-press.net\/guinee-equatoriale\/#\/schema\/person\/2b1cf3cd81a31e3cd26889ca66d677f1\"},\"headline\":\"Comment le jus de betterave peut doper votre performance sportive\",\"datePublished\":\"2023-02-23T13:20:46+00:00\",\"dateModified\":\"2023-02-23T14:34:53+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.africa-press.net\/guinee-equatoriale\/toutes-les-actualites\/comment-le-jus-de-betterave-peut-doper-votre-performance-sportive\"},\"wordCount\":334,\"commentCount\":0,\"image\":{\"@id\":\"https:\/\/www.africa-press.net\/guinee-equatoriale\/toutes-les-actualites\/comment-le-jus-de-betterave-peut-doper-votre-performance-sportive#primaryimage\"},\"thumbnailUrl\":\"https:\/\/static.africa-press.net\/guinee-equatoriale\/sites\/53\/2023\/02\/postQueueImg_1677145878.12.jpg\",\"keywords\":[\"Africa Press\",\"Africa Press-Guinee Equatoriale\",\"Guinee Equatoriale\"],\"articleSection\":[\"Divers\",\"Toutes les actualit\u00e9s\"],\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.africa-press.net\/guinee-equatoriale\/toutes-les-actualites\/comment-le-jus-de-betterave-peut-doper-votre-performance-sportive#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.africa-press.net\/guinee-equatoriale\/toutes-les-actualites\/comment-le-jus-de-betterave-peut-doper-votre-performance-sportive\",\"url\":\"https:\/\/www.africa-press.net\/guinee-equatoriale\/toutes-les-actualites\/comment-le-jus-de-betterave-peut-doper-votre-performance-sportive\",\"name\":\"Comment le jus de betterave peut doper votre performance sportive - 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