{"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\/fi\/weak_muscles\/","title":{"rendered":"Heikot lihakset"},"content":{"rendered":"
\n

Luotamme lihaksiimme k\u00e4velless\u00e4mme, esineit\u00e4 nostaessamme ja portaita kiivetess\u00e4mme. Avaruudessa lihakset kuitenkin heikkenev\u00e4t, kun painovoimaa ei tarvitse vastustaa. Kun astronautit palaavat Maahan, jossa vallitsee normaali painovoima, he tuntevat itsens\u00e4 yht\u00e4kki\u00e4 hyvin raskaille ja heill\u00e4 on vaikeuksia s\u00e4ilytt\u00e4\u00e4 tasapainonsa. Samanlaisia vaikutuksia esiintyy ik\u00e4\u00e4ntyneill\u00e4 ihmisill\u00e4 sek\u00e4 niill\u00e4, jotka joutuvat viett\u00e4m\u00e4\u00e4n pitk\u00e4\u00e4n aikaa s\u00e4ngyss\u00e4 sairauden vuoksi.<\/p>\n<\/div>\n

Avaruustutkimukset tarjoavat mahdollisuuden oppia lis\u00e4\u00e4 pitk\u00e4aikaisen lihasten surkastumisen vaikutuksista.<\/p>\n

\"Keeping
Kunnon yll\u00e4pit\u00e4minen<\/figcaption><\/figure>\n

Astronauttien kanssa tehdyt kokeet ovat osoittaneet, ett\u00e4 lihasheikkouden ehk\u00e4isemiseksi tarvitaan useita tunteja liikuntaa p\u00e4ivitt\u00e4in. Avaruudessa k\u00e4ytett\u00e4vi\u00e4 laitteita ovat muun muassa juoksumatot, joilla juostaan paikallaan, sek\u00e4 kuntopy\u00f6r\u00e4t. Ne ovat t\u00e4rkeit\u00e4 lihasten vahvistamiseksi ja verenkierron parantamiseksi.<\/p>\n

Astronautit voivat my\u00f6s k\u00e4ytt\u00e4\u00e4 erityisi\u00e4 housuja, jotka ohjaavat verta jalkoihin ja saavat syd\u00e4men pumppaamaan voimakkaammin. N\u00e4ill\u00e4 ja muilla toimenpiteill\u00e4, kuten l\u00e4\u00e4kehoidolla, voi olla k\u00e4ytt\u00f6\u00e4 my\u00f6s maapallolla oleville potilaille.<\/p>\n

Yksi ESA:n kehitt\u00e4m\u00e4 uusi laite on Flywheel-kuntoilulaite. Siihen kuuluu py\u00f6riv\u00e4 py\u00f6r\u00e4, ja sit\u00e4 voidaan k\u00e4ytt\u00e4\u00e4 kuntoiluun sek\u00e4 avaruudessa ett\u00e4 Maassa. Laite l\u00e4hetettiin kansainv\u00e4liselle avaruusasemalle ESA:n Columbus-laboratorion mukana helmikuussa 2008, ja sit\u00e4 k\u00e4ytet\u00e4\u00e4n astronauttien edistyneen\u00e4 kuntoilulaitteena. My\u00f6hemmin sit\u00e4 tullaan k\u00e4ytt\u00e4m\u00e4\u00e4n toipuvien potilaiden kuntoutuksessa ja urheilijoiden harjoittelussa.<\/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\/fi\/wp-json\/wp\/v2\/posts\/799","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/comments?post=799"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/799\/revisions"}],"predecessor-version":[{"id":4692,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/799\/revisions\/4692"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/media?parent=799"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/categories?post=799"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/tags?post=799"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/panel?post=799"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/language?post=799"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/age?post=799"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/duration?post=799"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/resource_type?post=799"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/audience?post=799"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/wf_post_folders?post=799"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}