Leto\u0161n\u00ed l\u00e9to je ve znamen\u00ed olympijsk\u00fdch her, a tak i dne\u0161n\u00ed aktualita je na sportovn\u00ed t\u00e9ma. Tentokr\u00e1t se spolu s\u00a0autory jedn\u00e9 studie zam\u00fd\u0161l\u00edme, jak\u00fd dopad na na\u0161e mitochondrie, metabolismus a zdrav\u00ed m\u016f\u017ee m\u00edt p\u0159ehnan\u00fd pohyb.<\/p>\n
B\u011b\u017en\u00e9 cvi\u010den\u00ed, jak je zn\u00e1mo, podporuje zdrav\u00e9 t\u011blo i mysl. Av\u0161ak p\u0159\u00edli\u0161 intenzivn\u00ed (fanatick\u00e9) tr\u00e9nov\u00e1n\u00ed m\u016f\u017ee m\u00edt za n\u00e1sledek opa\u010dn\u00fd efekt. Nov\u00e9 anal\u00fdzy poukazuj\u00ed na to, \u017ee vysoce intenzivn\u00ed tr\u00e9ninky vy\u010derp\u00e1vaj\u00ed na\u0161e mitochondrie a otupuj\u00ed schopnost t\u011bla regulovat hladinu cukru v\u00a0krvi.<\/p>\n
Na Swedish School of Sport and Health Sciences ve Stockholmu byl proveden v\u00fdzkum, kdy 11 dobrovoln\u00edk\u016f bylo podrobeno t\u0159\u00edt\u00fddenn\u00edmu tr\u00e9ninku stup\u0148uj\u00edc\u00ed se intenzity. P\u0159i p\u0159echodu z\u00a0lehk\u00e9ho cvi\u010den\u00ed na st\u0159edn\u00ed z\u00e1t\u011b\u017e se u v\u0161ech \u00fa\u010dastn\u00edk\u016f zlep\u0161ily biologick\u00e9 parametry. Av\u0161ak p\u0159i dal\u0161\u00edm p\u0159echodu na intenzivn\u00ed tr\u00e9nink za\u010daly hodnoty t\u011bchto parametr\u016f stagnovat.<\/p>\n
Svalov\u00e9 biopsie odeb\u00edran\u00e9 v\u00a0t\u00fddenn\u00edch intervalech uk\u00e1zaly, \u017ee prvotn\u00ed kapacita mitochondri\u00ed produkovat energii se nejprve zv\u00fd\u0161ila, av\u0161ak ihned po intenzivn\u00edm tr\u00e9ninku razantn\u011b klesla. Za tento pokles m\u016f\u017ee redukce schopnosti mitochondri\u00ed metabolizovat gluk\u00f3zu.<\/p>\n
V\u011bdci tak\u00e9 zkoumali pr\u016fb\u011bh gluk\u00f3zov\u00e9ho metabolismu u skupiny 15 profesion\u00e1ln\u00edch vytrvalostn\u00edch sportovc\u016f a porovn\u00e1vali jej se skupinou 12 nesportovc\u016f. Bylo zji\u0161t\u011bno, \u017ee pr\u016fm\u011brn\u00e9 hladiny krevn\u00edho cukru se v\u00a0pr\u016fb\u011bhu 24 hodin u obou skupin t\u00e9m\u011b\u0159 neli\u0161ily. Rozd\u00edl byl v\u0161ak v\u00a0tom, \u017ee u vytrvalostn\u00edch sportovc\u016f jsou f\u00e1ze s\u00a0vysok\u00fdmi nebo n\u00edzk\u00fdmi hladinami krevn\u00edho cukru del\u0161\u00ed ne\u017e u nesportovc\u016f.<\/p>\n
I v p\u0159\u00edpad\u011b t\u011blesn\u00e9ho pohybu a tr\u00e9ninku tedy plat\u00ed, \u017ee v\u0161eho s m\u00edrou. Lidem, kte\u0159\u00ed sportuj\u00ed p\u0159\u00edle\u017eitostn\u011b, prosp\u00edv\u00e1 lehk\u00fd, p\u0159\u00edpadn\u011b st\u0159edn\u00ed tr\u00e9nink. Ti, kte\u0159\u00ed intenzivn\u011b tr\u00e9nuj\u00ed a usiluj\u00ed o dosa\u017een\u00ed \u0161pi\u010dkov\u00fdch sportovn\u00edch v\u00fdkon\u016f, by tak m\u011bli \u010dinit v\u00a0souladu s\u00a0mechanismy t\u011blesn\u00e9ho metabolismu a nevy\u010derp\u00e1vat\/dob\u00edjet sv\u00e9 mitochondrie (viz aktualita Mitochondrie \u2013 par\u0165\u00e1ci sportovc\u016f).<\/p>\n
Pravou rukou sportovce by m\u011bl b\u00fdt krom\u011b tren\u00e9ra i nutri\u010dn\u00ed specialista, kter\u00fd p\u0159\u00edpadn\u011b i na podkladu anal\u00fdzy genetick\u00fdch predispozic m\u016f\u017ee zamezit metabolick\u00e9 destabilizaci p\u0159i tr\u00e9ninku sestaven\u00edm optim\u00e1ln\u00edho v\u00fd\u017eivov\u00e9ho pl\u00e1nu. Slu\u017eby nutri\u010dn\u00edho specialisty \u010di genetickou anal\u00fdzu pro sportovce poskytuje Medic\u00ednsk\u00e9 centrum Praha.<\/p>\n
<\/p>\n
Ing. V\u00edt Smejkal<\/p>\n
27.7.2021<\/p>\n
Zdroj:<\/p>\n
Flockhart M, Nilsson LC, Tais S, Ekblom B, Apr\u00f3 W, Larsen FJ (2021): Excessive exercise training causes mitochondrial functional impairment and decreases glucose tolerance in healthy volunteers. Cell Metabolism, 33, 957-970.e6. doi: 10.1016\/j.cmet.2021.02.017.<\/p>\n","protected":false},"excerpt":{"rendered":"
Leto\u0161n\u00ed l\u00e9to je ve znamen\u00ed olympijsk\u00fdch her, a tak i dne\u0161n\u00ed aktualita je na sportovn\u00ed […]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"image","meta":{"_uag_custom_page_level_css":""},"categories":[1],"tags":[],"uagb_featured_image_src":{"full":false,"thumbnail":false,"medium":false,"medium_large":false,"large":false,"1536x1536":false,"2048x2048":false,"boldthemes_grid":false,"boldthemes_grid_11":false,"boldthemes_grid_22":false,"boldthemes_grid_21":false,"boldthemes_grid_12":false,"boldthemes_latest_posts":false,"boldthemes_grid_gallery":false},"uagb_author_info":{"display_name":"Jbednar","author_link":"https:\/\/www.mc-praha.cz\/mcp\/author\/jbednar\/"},"uagb_comment_info":0,"uagb_excerpt":"Leto\u0161n\u00ed l\u00e9to je ve znamen\u00ed olympijsk\u00fdch her, a tak i dne\u0161n\u00ed aktualita je na sportovn\u00ed […]","post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/www.mc-praha.cz\/mcp\/wp-json\/wp\/v2\/posts\/3941"}],"collection":[{"href":"https:\/\/www.mc-praha.cz\/mcp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.mc-praha.cz\/mcp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.mc-praha.cz\/mcp\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/www.mc-praha.cz\/mcp\/wp-json\/wp\/v2\/comments?post=3941"}],"version-history":[{"count":1,"href":"https:\/\/www.mc-praha.cz\/mcp\/wp-json\/wp\/v2\/posts\/3941\/revisions"}],"predecessor-version":[{"id":3942,"href":"https:\/\/www.mc-praha.cz\/mcp\/wp-json\/wp\/v2\/posts\/3941\/revisions\/3942"}],"wp:attachment":[{"href":"https:\/\/www.mc-praha.cz\/mcp\/wp-json\/wp\/v2\/media?parent=3941"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.mc-praha.cz\/mcp\/wp-json\/wp\/v2\/categories?post=3941"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.mc-praha.cz\/mcp\/wp-json\/wp\/v2\/tags?post=3941"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}