{"id":799,"date":"2004-12-08T09:10:00","date_gmt":"2004-12-08T08:10:00","guid":{"rendered":"https:\/\/kids.esa.int\/weak_muscles\/"},"modified":"2026-10-08T00:32:23","modified_gmt":"2026-10-07T22:32:23","slug":"weak_muscles","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/fr\/weak_muscles\/","title":{"rendered":"Faiblesse musculaire"},"content":{"rendered":"
\n

Nous utilisons nos muscles pour marcher, soulever des objets ou monter les escaliers. Dans l'espace, les muscles s'affaiblissent parce qu'ils ne doivent plus surmonter la force de la gravit\u00e9. Lorsqu'ils retrouvent une gravit\u00e9 normale \u00e0 leur retour sur Terre, les astronautes ont une sensation de lourdeur et ont du mal \u00e0 garder l'\u00e9quilibre. Ces effets sont similaires \u00e0 ceux que ressentent les personnes \u00e2g\u00e9es apr\u00e8s une longue p\u00e9riode d'alitement suite \u00e0 une maladie.<\/p>\n<\/div>\n

Les \u00e9tudes spatiales permettent d'en savoir plus sur les cons\u00e9quences d'un repos musculaire prolong\u00e9.<\/p>\n

\"Keeping
Keeping fit<\/figcaption><\/figure>\n

Tests with astronauts have shown that several hours of daily exercise are needed to prevent muscle weakness. Among the machines used in space are treadmills for running on the spot and exercise bicycles. These are important for strengthening muscles and improving blood circulation.<\/p>\n

Les astronautes peuvent aussi porter des pantalons sp\u00e9ciaux qui attirent le sang dans les jambes et renforcent l'activit\u00e9 cardiaque. Ces syst\u00e8mes et d'autres, tels que les traitements m\u00e9dicamenteux, pourraient \u00e9galement \u00eatre appliqu\u00e9s \u00e0 des patients sur Terre.<\/p>\n

Une nouvelle machine mise au point par l\u2019ESA est le Flywheel Exercise Device. Elle comprend une roue et peut servir \u00e0 la fois dans l\u2019espace et sur Terre. Elle est partie pour la Station spatial internationale \u00e0 bord du laboratoire Columbus de l\u2019ESA en f\u00e9vrier 2008 o\u00f9 elle sert d\u2019appareil d\u2019exercice avanc\u00e9 pour les astronautes. \u00c0 terme, elle servira \u00e0 la r\u00e9\u00e9ducation des patients et \u00e0 l\u2019entra\u00eenement des athl\u00e8tes.<\/p>","protected":false},"excerpt":{"rendered":"

We rely on our muscles to walk, lift objects and climb stairs. However, in space muscles become weaker when there is no gravity to overcome. When astronauts come back to […]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"esa_banner_image":"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2000\/09\/jean-pierre_haignere_returns_from_mir2\/17866527-3-eng-GB\/Jean-Pierre_Haignere_returns_from_MIR.jpg","esa_banner_description":"Jean-Pierre Haigner\u00e9 returns from MIR","esa_banner_credit":"ESA\/CNES","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2000\/09\/Jean-Pierre_Haignere_returns_from_MIR2","esa_external_url":"","esa_external_new_window":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":true},"categories":[10,13,63],"tags":[2],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-799","post","type-post","status-publish","format-standard","hentry","category-learn","category-life-in-space","category-living-in-space","tag-background-article"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/799","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/comments?post=799"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/799\/revisions"}],"predecessor-version":[{"id":4692,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/799\/revisions\/4692"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/media?parent=799"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/categories?post=799"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/tags?post=799"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/panel?post=799"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/language?post=799"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/age?post=799"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/duration?post=799"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/resource_type?post=799"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/audience?post=799"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/wf_post_folders?post=799"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}