{"id":800,"date":"2004-12-08T09:04:00","date_gmt":"2004-12-08T08:04:00","guid":{"rendered":"https:\/\/kids.esa.int\/bone_loss\/"},"modified":"2026-10-08T00:32:24","modified_gmt":"2026-10-07T22:32:24","slug":"bone_loss","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/cs\/bone_loss\/","title":{"rendered":"\u00dabytek kostn\u00ed hmoty"},"content":{"rendered":"
\n

50% \u017een ve v\u011bku nad 60 let trp\u00ed k\u0159ehkost\u00ed kost\u00ed. P\u0159i pohledu pod mikroskopem se zd\u00e1, jako by byla st\u0159edn\u00ed \u010d\u00e1st kosti rozlept\u00e1na. To vede k v\u00fdrazn\u00e9mu n\u00e1r\u016fstu zlomenin ky\u010dle, z\u00e1p\u011bst\u00ed nebo p\u00e1te\u0159e. Tento probl\u00e9m je z velk\u00e9 \u010d\u00e1sti zp\u016fsoben nemocemi a nedostatkem pohybu.<\/p>\n<\/div>\n

Podobn\u00fd probl\u00e9m se vyskytuje i ve stavu bezt\u00ed\u017ee ve vesm\u00edru, kdy i ti nejmlad\u0161\u00ed a nejzdatn\u011bj\u0161\u00ed astronauti trp\u00ed ur\u010ditou ztr\u00e1tou kostn\u00ed hmoty.<\/p>\n

Kosmick\u00fd v\u00fdzkum pom\u00e1h\u00e1 v\u011bdc\u016fm pochopit, co se d\u011bje, a naj\u00edt zp\u016fsob, jak tento probl\u00e9m vy\u0159e\u0161it.<\/p>\n

Jednou z metod je zapojen\u00ed dobrovoln\u00edk\u016f, kte\u0159\u00ed z\u016fst\u00e1vaj\u00ed v posteli po mnoho t\u00fddn\u016f. Tyto studie s klidov\u00fdm re\u017eimem ukazuj\u00ed, jak se kosti m\u011bn\u00ed, kdy\u017e na n\u011b nep\u016fsob\u00ed \u017e\u00e1dn\u00e1 z\u00e1t\u011b\u017e.<\/p>\n

ESA rovn\u011b\u017e vyv\u00edj\u00ed nov\u00e9 cvi\u010debn\u00ed stroje a zdravotnick\u00e9 vybaven\u00ed pro pou\u017eit\u00ed na Zemi i ve vesm\u00edru.<\/p>\n

Jedn\u00edm ze za\u0159\u00edzen\u00ed testovan\u00fdch b\u011bhem let\u016f ESA v podm\u00ednk\u00e1ch mikrogravitace je stroj pro nased\u00e1n\u00ed a sesed\u00e1n\u00ed. Dal\u0161\u00ed za\u0159\u00edzen\u00ed napodobuje b\u011b\u017enou ch\u016fzi a b\u011bh a zkoum\u00e1 vliv vibrac\u00ed na kosti.<\/p>","protected":false},"excerpt":{"rendered":"

50% of women over 60 years of age suffer from brittle bones. As seen through a microscope, the centre of the bone seems to be eaten away. This leads 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\/2004\/04\/keeping_fit4\/17877404-2-eng-GB\/Keeping_fit.jpg","esa_banner_description":"Keeping fit","esa_banner_credit":"AP Photo\/Michel Euler","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2004\/04\/Keeping_fit4","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-800","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\/cs\/wp-json\/wp\/v2\/posts\/800","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/comments?post=800"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/posts\/800\/revisions"}],"predecessor-version":[{"id":1943,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/posts\/800\/revisions\/1943"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/media?parent=800"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/categories?post=800"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/tags?post=800"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/panel?post=800"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/language?post=800"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/age?post=800"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/duration?post=800"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/resource_type?post=800"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/audience?post=800"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/wf_post_folders?post=800"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}