{"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\/sv\/weak_muscles\/","title":{"rendered":"Svaga muskler"},"content":{"rendered":"
\n

Vi \u00e4r beroende av v\u00e5ra muskler f\u00f6r att g\u00e5, lyfta f\u00f6rem\u00e5l och g\u00e5 i trappor. I rymden blir dock musklerna svagare eftersom det inte finns n\u00e5gon tyngdkraft att \u00f6vervinna. N\u00e4r astronauter \u00e5terv\u00e4nder till normal tyngdkraft p\u00e5 jorden k\u00e4nner de sig pl\u00f6tsligt v\u00e4ldigt tunga och har sv\u00e5rt att h\u00e5lla balansen. Liknande effekter upptr\u00e4der hos \u00e4ldre personer och hos dem som tillbringar l\u00e5ng tid i s\u00e4ngen p\u00e5 grund av sjukdom.<\/p>\n<\/div>\n

Rymdforskningen ger m\u00f6jlighet att l\u00e4ra sig mer om effekterna av l\u00e5ngvarig muskelf\u00f6rlust.<\/p>\n

\"Keeping
Att h\u00e5lla sig i form<\/figcaption><\/figure>\n

Tester med astronauter har visat att det kr\u00e4vs flera timmars daglig tr\u00e4ning f\u00f6r att f\u00f6rebygga muskelsvaghet. Bland de tr\u00e4ningsredskap som anv\u00e4nds i rymden finns l\u00f6pband f\u00f6r att springa p\u00e5 plats och motionscyklar. Dessa \u00e4r viktiga f\u00f6r att st\u00e4rka musklerna och f\u00f6rb\u00e4ttra blodcirkulationen.<\/p>\n

Astronauter kan ocks\u00e5 b\u00e4ra speciella byxor som leder blodet till benen och f\u00e5r hj\u00e4rtat att pumpa kraftigare. Dessa och andra \u00e5tg\u00e4rder, till exempel l\u00e4kemedelsbehandling, kan eventuellt vara till nytta f\u00f6r patienter h\u00e4r p\u00e5 jorden.<\/p>\n

En ny maskin som utvecklas av ESA \u00e4r tr\u00e4ningsredskapet \u201dFlywheel Exercise Device\u201d. Den best\u00e5r av ett snurrande hjul och kan anv\u00e4ndas f\u00f6r tr\u00e4ning b\u00e5de i rymden och p\u00e5 jorden. Den skickades upp till den internationella rymdstationen ISS tillsammans med ESA:s laboratorium Columbus i februari 2008 och anv\u00e4nds som ett avancerat tr\u00e4ningsredskap f\u00f6r astronauter. Den kommer s\u00e5 sm\u00e5ningom att bli tillg\u00e4nglig f\u00f6r patienter under rehabilitering och f\u00f6r tr\u00e4ning av idrottare.<\/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\/sv\/wp-json\/wp\/v2\/posts\/799","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/comments?post=799"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts\/799\/revisions"}],"predecessor-version":[{"id":4692,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts\/799\/revisions\/4692"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/media?parent=799"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/categories?post=799"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/tags?post=799"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/panel?post=799"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/language?post=799"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/age?post=799"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/duration?post=799"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/resource_type?post=799"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/audience?post=799"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/wf_post_folders?post=799"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}