{"id":8925,"date":"2023-03-13T12:11:54","date_gmt":"2023-03-13T12:11:54","guid":{"rendered":"https:\/\/ciclozone.com\/blog\/sagesse-du-mercredi-karyn-silenzi-lentrainement-en-dessous-du-seuil-est-essentiel-a-la-performance\/"},"modified":"2026-03-30T23:04:58","modified_gmt":"2026-03-30T22:04:58","slug":"sagesse-du-mercredi-karyn-silenzi-lentrainement-en-dessous-du-seuil-est-essentiel-a-la-performance","status":"publish","type":"post","link":"https:\/\/ciclozone.com\/fr\/blog\/sagesse-du-mercredi-karyn-silenzi-lentrainement-en-dessous-du-seuil-est-essentiel-a-la-performance\/","title":{"rendered":"Sagesse du mercredi : Karyn Silenzi \u2013 L\u2019entra\u00eenement en dessous du seuil est essentiel \u00e0 la performance"},"content":{"rendered":"<p>Dans mon blog pr\u00e9c\u00e9dent, nous avons examin\u00e9 le tableau des niveaux d\u2019entra\u00eenement de puissance. Il est bas\u00e9 sur des recherches approfondies sur la mani\u00e8re dont les diff\u00e9rentes intensit\u00e9s d\u2019entra\u00eenement sont prises en charge via les trois syst\u00e8mes de distribution d\u2019\u00e9nergie du corps.<\/p>\n<h2>Syst\u00e8mes de distribution d&rsquo;\u00e9nergie<\/h2>\n<p>Chaque mouvement que vous effectuez, du clignement des yeux au v\u00e9lo, n\u00e9cessite de l&rsquo;ad\u00e9nosine triphosphate (ATP), une mol\u00e9cule porteuse d&rsquo;\u00e9nergie pr\u00e9sente dans les cellules de tous les \u00eatres vivants. En fait, l\u2019ATP est m\u00eame n\u00e9cessaire pour \u00e9tablir et rompre les liaisons productrices d\u2019\u00e9nergie dans l\u2019ATP. L&rsquo;ATP est la monnaie \u00e9nerg\u00e9tique du corps et est produite simultan\u00e9ment dans trois syst\u00e8mes.<\/p>\n<p>Les trois syst\u00e8mes de fourniture d&rsquo;\u00e9nergie sont : a\u00e9robie, ana\u00e9robie et ATP-CP. Chaque syst\u00e8me fournit une quantit\u00e9 diff\u00e9rente de potentiel \u00e9nerg\u00e9tique et chacun a un taux diff\u00e9rent auquel ce potentiel \u00e9nerg\u00e9tique peut \u00eatre fourni. La chose la plus importante \u00e0 comprendre \u00e0 propos de l\u2019ATP est que nous en stockons des quantit\u00e9s tr\u00e8s limit\u00e9es dans notre corps et, par cons\u00e9quent, nous utilisons et resynth\u00e9tisons continuellement ce potentiel \u00e9nerg\u00e9tique dans un cycle sans fin.<\/p>\n<p>Chaque syst\u00e8me de fourniture d\u2019\u00e9nergie n\u00e9cessitera certaines substances et en \u00e9liminera d\u2019autres. L&rsquo;ATP capte l&rsquo;\u00e9nergie chimique via la d\u00e9gradation des mol\u00e9cules alimentaires sous forme de glucides et de graisses disponibles. Le syst\u00e8me a\u00e9robie n\u00e9cessite de l\u2019oxyg\u00e8ne en plus de ces substrats \u00e9nerg\u00e9tiques. Les humains sont des cr\u00e9atures a\u00e9robies. Sans acc\u00e8s \u00e0 l\u2019oxyg\u00e8ne, nos cellules deviendront isch\u00e9miques et mourront \u00e0 des rythmes variables. La base m\u00eame de notre existence est bas\u00e9e sur la respiration et, \u00e0 ce titre, la majorit\u00e9 du travail que nous effectuons est de nature a\u00e9robie.<\/p>\n<p>L&rsquo;approvisionnement en \u00e9nergie entre les diff\u00e9rents syst\u00e8mes est assur\u00e9 selon une \u00e9chelle mobile. C&rsquo;est la quantit\u00e9 d&rsquo;\u00e9nergie requise ou la vitesse \u00e0 laquelle elle est requise qui d\u00e9termine si le syst\u00e8me a\u00e9robie et ana\u00e9robie constitue la principale voie d&rsquo;administration.<\/p>\n<p>\u00c0 des niveaux d\u2019intensit\u00e9 plus faibles, votre corps n\u2019a pas besoin d\u2019\u00e9nergie aussi rapidement, donc cette voie fournit facilement l\u2019\u00e9nergie n\u00e9cessaire. Le m\u00e9tabolisme a\u00e9robie utilise un pourcentage plus \u00e9lev\u00e9 de graisses comme carburant plut\u00f4t que comme glucides. Il a un faible d\u00e9bit mais un rendement \u00e9lev\u00e9, ce qui signifie que la production et l&rsquo;approvisionnement en \u00e9nergie sont plus lents, mais chaque mol\u00e9cule de graisse produit plus de deux fois les unit\u00e9s d&rsquo;\u00e9nergie d&rsquo;une mol\u00e9cule de glucose, c&rsquo;est donc un moyen beaucoup plus efficace de fournir de l&rsquo;\u00e9nergie. Ce concept est essentiel car les humains ont g\u00e9n\u00e9ralement beaucoup plus de graisses stock\u00e9es que de glucides, appel\u00e9s glucose et glycog\u00e8ne.<\/p>\n<h2>Demandes \u00e9nerg\u00e9tiques au seuil<\/h2>\n<p>Nos physiologies sont aussi uniques que nos empreintes digitales ; ce qui fonctionne pour un coureur peut ne pas \u00eatre aussi efficace pour d&rsquo;autres. Il est important de r\u00e9aliser que nous pouvons, dans une certaine mesure, fa\u00e7onner notre physiologie unique, et c\u2019est pourquoi il est essentiel de s\u2019entra\u00eener en dessous de notre seuil pour construire une base a\u00e9robie solide.<\/p>\n<p>La conduite au seuil est encore principalement a\u00e9robie\u00a0; sinon, nous ne serions pas capables de maintenir cette intensit\u00e9 pendant une heure. L&rsquo;entra\u00eenement a\u00e9robie est n\u00e9cessaire \u00e0 la biogen\u00e8se mitochondriale \u2013 le processus par lequel les cellules augmentent la masse mitochondriale. Non seulement la mitochondrie est un r\u00e9gulateur cl\u00e9 de l\u2019activit\u00e9 m\u00e9tabolique, mais elle constitue \u00e9galement un organite important dans le contr\u00f4le de l\u2019\u00e9volution de certaines maladies m\u00e9taboliques telles que le diab\u00e8te et les maladies cardiovasculaires.<\/p>\n<p>Rouler pendant des p\u00e9riodes prolong\u00e9es en dessous du seuil entra\u00eenera votre corps \u00e0 utiliser un plus grand rapport graisses\/hydrates de carbone. Si vous disposez d\u2019une source de carburant plus importante pour des efforts plus longs, vous disposerez de r\u00e9serves de glycog\u00e8ne suffisantes pour des efforts de plus forte intensit\u00e9 lorsque vous en aurez vraiment besoin.<\/p>\n<p>L&rsquo;entra\u00eenement de base a\u00e9robie garantira \u00e9galement que votre endurance soit bien d\u00e9velopp\u00e9e, ce qui vous permettra de rouler plus longtemps, en produisant le m\u00eame nombre de watts, avec moins d&rsquo;effort global. L\u2019entra\u00eenement en dessous du seuil de lactate vous permet \u00e9galement d\u2019augmenter votre tol\u00e9rance et d\u2019\u00e9liminer le lactate plus rapidement.<\/p>\n<p>Nous savons tous \u00e0 quel point ces efforts de haute intensit\u00e9 sont amusants et la pr\u00e9cipitation qui accompagne leur r\u00e9ussite. Entra\u00eenez votre corps \u00e0 devenir efficace, puissant et capable en passant du temps \u00e0 d\u00e9velopper vos syst\u00e8mes a\u00e9robies afin que vos efforts de haute intensit\u00e9 puissent cr\u00e9er encore plus de puissance.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Dans mon blog pr\u00e9c\u00e9dent, nous avons examin\u00e9 le tableau des niveaux d\u2019entra\u00eenement de puissance. Il est bas\u00e9 sur des recherches approfondies sur la mani\u00e8re dont les diff\u00e9rentes intensit\u00e9s&#8230;<\/p>\n","protected":false},"author":3,"featured_media":8926,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center 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center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[73],"tags":[],"class_list":["post-8925","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-zone-entrainement-fr"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Training Below Threshold | Training Zone | CicloZone Blog<\/title>\n<meta name=\"description\" content=\"Karyn Silenzi explains how training below the threshold is critical to performance and how it trains your body to use a larger ratio of fat to carbohydrates\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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