{"id":27055,"date":"2024-09-04T09:24:54","date_gmt":"2024-09-04T07:24:54","guid":{"rendered":"https:\/\/www.welovecycling.com\/cs\/?p=27055"},"modified":"2024-09-04T09:24:54","modified_gmt":"2024-09-04T07:24:54","slug":"kava-a-cyklistika-skryva-se-v-salku-nepritel","status":"publish","type":"post","link":"https:\/\/www.welovecycling.com\/cs\/2024\/09\/04\/kava-a-cyklistika-skryva-se-v-salku-nepritel\/","title":{"rendered":"K\u00e1va a cyklistika. Skr\u00fdv\u00e1 se v \u0161\u00e1lku nep\u0159\u00edtel?"},"content":{"rendered":"

K\u00e1va a cyklistika. Vztah tak propleten\u00fd, \u017ee pro mnoh\u00e9 je p\u0159edstava \u0161vihu bez injekce kofeinu na startu prost\u011b nemysliteln\u00e1. Srkat espresso a \u010dekat u toho na dal\u0161\u00ed par\u0165\u00e1ky p\u0159ipraven\u00e9 na bolest k j\u00edzd\u011b je zkr\u00e1tka ritu\u00e1l. P\u0159esto jsou tu nov\u00e9 a pon\u011bkud p\u0159ekvapiv\u00e9 d\u016fkazy o tom, \u017ee pro n\u011bkter\u00e9 z n\u00e1s nen\u00ed kofein t\u00edm vysokooktanov\u00fdm palivem v n\u00e1dr\u017ei a k\u00e1va podkope n\u00e1\u0161 v\u00fdkon.<\/strong><\/p>\n

Odborn\u00edci na v\u00fd\u017eivu ji\u017e n\u011bkolik let v\u011bd\u00ed, \u017ee n\u00e1\u0161 genetick\u00fd profil, nebo p\u0159esn\u011bji varianta specifick\u00e9ho genu CYP1A2 ur\u010duje, jak rychle metabolizujeme a odstra\u0148ujeme kofein z na\u0161eho t\u011bla.<\/p>\n

Pomal\u00ed metaboliz\u00e1to\u0159i maj\u00ed probl\u00e9m<\/strong><\/h2>\n

P\u0159ibli\u017en\u011b 50 procent populace \u2013 t\u011bch \u0161\u0165astn\u00fdch \u201erychl\u00fdch spalova\u010d\u016f\u201c \u2013 um\u00ed kofein z t\u011bla \u00fa\u010dinn\u011b odstra\u0148ovat a st\u00e1le v\u00edce d\u016fkaz\u016f nazna\u010duje, \u017ee kofein m\u00e1 p\u0159\u00edzniv\u00fd vliv na jejich kardiovaskul\u00e1rn\u00ed zdrav\u00ed. Zhruba 40 procent z n\u00e1s jsou \u201est\u0159edn\u00ed metaboliz\u00e1to\u0159i\u201c, pro kter\u00e9 jsou \u00fa\u010dinky kofeinu zanedbateln\u00e9. Zbytek jsou \u201epomal\u00ed metaboliz\u00e1to\u0159i\u201c a pro tuto malou, ale po\u0159\u00e1d v\u00fdznamnou skupinu je kofein v\u00edt\u00e1n asi stejn\u011b jako konference o astmatu ve Franti\u0161kov\u00fdch L\u00e1zn\u00edch.<\/p>\n

P\u0159ekvapiv\u011b teprve ned\u00e1vno se rozs\u00e1hl\u00e1 studie vydala zkoumat vliv kofeinu na sportovn\u00ed v\u00fdkon p\u0159\u00edslu\u0161n\u00fdch rychl\u00fdch, st\u0159edn\u00edch a pomal\u00fdch spalova\u010d\u016f. Vzorek 101 cyklist\u016f podstoupil genetick\u00fd test, aby se zjistilo, kterou variantu genu CYP1A2 maj\u00ed. A jak spojen\u00ed k\u00e1va a cyklistika dopadlo?<\/p>\n

\n
\"proc-ben-oconnor-nevyhraje-vueltu-2024\"\/<\/a><\/div>
\n Silni\u010dn\u00ed cyklistika<\/a>\n <\/div>\n
\n \n

Pro\u010d Ben O’Connor (ne)vyhraje Vueltu 2024?<\/span><\/h3>\n <\/a>\n <\/div>\n <\/article>\n<\/div>\n

Pot\u00e9 absolvovali t\u0159i j\u00edzdy dlouh\u00e9 deset kilometr\u016f v laboratorn\u00edch podm\u00ednk\u00e1ch a p\u0159ed t\u011bmito jednotkami na trena\u017e\u00e9ru dostali bu\u010f placebo, n\u00edzkou d\u00e1vku kofeinu (dva miligramy na kilogram t\u011blesn\u00e9 hmotnosti, co\u017e se zhruba rovn\u00e1 jednomu siln\u00e9mu \u0161\u00e1lku k\u00e1vy) nebo vy\u0161\u0161\u00ed d\u00e1vku (\u010dty\u0159i miligramy na kilogram t\u011blesn\u00e9 hmotnosti).<\/p>\n

K\u00e1va n\u011bkter\u00e9 jedince zpomalila o 17 procent<\/strong><\/h2>\n

Po u\u017eit\u00ed n\u00edzk\u00e9 a vy\u0161\u0161\u00ed d\u00e1vky zaznamenali rychl\u00ed metaboliz\u00e1to\u0159i v pr\u016fm\u011bru o 5 a\u017e 7 procent vy\u0161\u0161\u00ed rychlost ve srovn\u00e1n\u00ed s dobou po u\u017eit\u00ed placeba. Bylo to potvrzen\u00ed domn\u011bnky o zlep\u0161en\u00ed sportovn\u00edho v\u00fdkonu, ke kter\u00e9 do\u0161la \u0159ada p\u0159edchoz\u00edch studi\u00ed.<\/p>\n

St\u0159edn\u00ed metaboliz\u00e1to\u0159i zaznamenali mal\u00fd rozd\u00edl, ale u pomal\u00fdch metaboliz\u00e1tor\u016f byly v\u00fdsledky ohromuj\u00edc\u00ed: po po\u017eit\u00ed v\u011bt\u0161\u00ed d\u00e1vky kofeinu byl pr\u016fm\u011brn\u00fd zaznamenan\u00fd \u010das o 17 procent pomalej\u0161\u00ed. To je v\u00fdznamn\u00fd \u00fadaj, kter\u00fd v\u00fdzkumn\u00fd t\u00fdm velmi p\u0159ekvapil.<\/p>\n

\"Zden\u011bk<\/a>
Zden\u011bk \u0160tybar, b\u00fdval\u00fd \u010desk\u00fd z\u00e1vodn\u00edk t\u00fdmu a nyn\u00ed ambasador We Love Cycling, pat\u0159\u00ed mezi velk\u00e9 milovn\u00edky k\u00e1vy. Foto: instagram Zde\u0148ka \u0160tybara<\/em><\/figcaption><\/figure>\n

Pro\u010d tak dramatick\u00e1 ztr\u00e1ta formy? Sn\u00ed\u017een\u00fd pr\u016ftok krve zp\u016fsoben\u00fd kofeinem se u pomal\u00fdch metaboliz\u00e1tor\u016f projevuje del\u0161\u00ed dobu. Tak\u017ee jejich svaly se unav\u00ed rychleji, ne\u017e kdy\u017e si sv\u016fj \u0161\u00e1lek odpust\u00ed.<\/p>\n

Tato teorie se snoub\u00ed s rozs\u00e1hlou studi\u00ed na 4000 dosp\u011bl\u00fdch z roku 2006. Nazna\u010dovala, \u017ee konzumace k\u00e1vy s v\u011bt\u0161\u00ed pravd\u011bpodobnost\u00ed zp\u016fsob\u00ed infarkty u pomal\u00fdch metaboliz\u00e1tor\u016f kofeinu. Jejich j\u00e1tra nedok\u00e1zala \u00fa\u010dinn\u011b vy\u010distit kofein v krevn\u00edm \u0159e\u010di\u0161ti, co\u017e zp\u016fsobilo z\u00fa\u017een\u00ed jejich krevn\u00edch c\u00e9v a tedy vy\u0161\u0161\u00ed riziko infarktu.<\/p>\n

Bylinkov\u00fd \u010daj nahrad\u00ed espresso<\/strong><\/h2>\n

U n\u011bkter\u00fdch pomal\u00fdch metaboliz\u00e1tor\u016f m\u016f\u017ee b\u00fdt dopad kofeinu na sportovn\u00ed v\u00fdkon zcela z\u00e1sadn\u00ed. Jedn\u00e9 uboh\u00e9 du\u0161i p\u0159i studii trvalo v\u00edce ne\u017e 24 minut, ne\u017e urazila 10 kilometr\u016f s d\u00e1vkou 4 mg\/kg kofeinu<\/a>. P\u0159itom tent\u00fd\u017e sportovec, kter\u00fd u\u017eil placebo, zaznamenal \u010das pod 16 minut. Mohlo za t\u00edm b\u00fdt mnoho d\u016fvod\u016f v\u010detn\u011b toho, \u017ee jen prost\u011b nem\u011bl sv\u016fj den.<\/p>\n

\n
\"kava-a-kolo-harmonie-z-ktere-se-zrodili-bikelovers\"\/<\/a><\/div>
\n WLC.cz kav\u00e1rny<\/a>\n <\/div>\n
\n \n

K\u00e1va a kolo? Harmonie, z\u00a0kter\u00e9 se zrodili Bikelovers<\/span><\/h3>\n <\/a>\n <\/div>\n <\/article>\n<\/div>\n

Takov\u00fdch u\u017e jsme asi ka\u017ed\u00fd z n\u00e1s na kole za\u017eili spoustu. Ale kolik z n\u00e1s se n\u011bkdy zab\u00fdvalo my\u0161lenkou, jestli za n\u00e1\u0161 katastrof\u00e1ln\u00ed pokles formy nem\u016f\u017ee ten zd\u00e1nliv\u011b ne\u0161kodn\u00fd \u0161\u00e1lek k\u00e1vy p\u0159ed odjezdem z domova nebo p\u0159est\u00e1vka v kav\u00e1rn\u011b cestou? Mo\u017en\u00e1 tento v\u00fdzkum n\u011bkter\u00e9 z n\u00e1s p\u0159im\u011bje k lep\u0161\u00edmu v\u00fdb\u011bru n\u00e1poj\u016f p\u0159ed a b\u011bhem j\u00edzdy.<\/p>\n

Tak\u017ee tady je \u0161patn\u00e1 zpr\u00e1va: pokud m\u00e1te podez\u0159en\u00ed, \u017ee jste pomal\u00fd metaboliz\u00e1tor (p\u0159\u00edznaky jsou neschopnost sp\u00e1t v noci, pokud pijete k\u00e1vu pozd\u011bji b\u011bhem dne, nebo nervozita, pokud j\u00ed pijete p\u0159\u00edli\u0161 mnoho), mo\u017en\u00e1 budete muset vz\u00edt v \u00favahu nemysliteln\u00e9 a vym\u011bnit espresso za bylinkov\u00fd \u010daj.<\/p>\n

Odvr\u00e1cenou stranou samoz\u0159ejm\u011b je, kdy\u017e sledujete, jak va\u0161i spolujezdci \u201enadopovan\u00ed\u201c kofeinem miz\u00ed za horizontem. Tady aspo\u0148 m\u00e1te dal\u0161\u00ed argument k tomu, pro\u010d v\u00e1m to posledn\u00ed dobou tolik nejezd\u00ed: \u201eJsem prost\u011b pomal\u00fd spalova\u010d kofeinu.\u201c<\/p>\n","protected":false},"excerpt":{"rendered":"

K\u00e1va a cyklistika. Vztah tak propleten\u00fd, \u017ee pro mnoh\u00e9 je p\u0159edstava \u0161vihu bez injekce kofeinu na startu prost\u011b nemysliteln\u00e1. Srkat […]<\/p>\n","protected":false},"author":138,"featured_media":8846,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[126,56,32,1075,34,3781,3780,9,17,28,67],"global-categories":[411],"class_list":["post-27055","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-zdravi-a-trenink","tag-cyklistika","tag-horska-cyklistika","tag-kava","tag-kava-a-cyklistika","tag-kofein","tag-kofein-a-cyklistika","tag-kofein-a-jeho-vliv-na-vykon","tag-silnicni-cyklistika","tag-vyziva","tag-zdravi","tag-zdravi-a-trenink","global-categories-cycling"],"yoast_head":"\nK\u00e1va a cyklistika. Skr\u00fdv\u00e1 se v \u0161\u00e1lku nep\u0159\u00edtel? | \u0160koda We Love Cycling - \u010cesk\u00e1 republika<\/title>\n<meta name=\"description\" content=\"K\u00e1va a silni\u010dn\u00ed cyklistika. Vztah tak propleten\u00fd, \u017ee pro mnoh\u00e9 je p\u0159edstava \u0161vihu bez injekce kofeinu na startu prost\u011b nemysliteln\u00e1. Srkat espresso a \u010dekat u toho na dal\u0161\u00ed par\u0165\u00e1ky p\u0159ipraven\u00e9 na bolest k j\u00edzd\u011b je zkr\u00e1tka ritu\u00e1l. P\u0159esto jsou tu nov\u00e9 a pon\u011bkud p\u0159ekvapiv\u00e9 d\u016fkazy o tom, \u017ee pro n\u011bkter\u00e9 z n\u00e1s nen\u00ed kofein t\u00edm vysokooktanov\u00fdm palivem v n\u00e1dr\u017ei a k\u00e1va podkope n\u00e1\u0161 v\u00fdkon.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.welovecycling.com\/cs\/2024\/09\/04\/kava-a-cyklistika-skryva-se-v-salku-nepritel\/\" \/>\n<meta property=\"og:locale\" content=\"cs_CZ\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"K\u00e1va a cyklistika. Skr\u00fdv\u00e1 se v \u0161\u00e1lku nep\u0159\u00edtel?\" \/>\n<meta property=\"og:description\" content=\"K\u00e1va a silni\u010dn\u00ed cyklistika. Vztah tak propleten\u00fd, \u017ee pro mnoh\u00e9 je p\u0159edstava \u0161vihu bez injekce kofeinu na startu prost\u011b nemysliteln\u00e1. 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