{"id":33027,"date":"2026-04-08T16:05:13","date_gmt":"2026-04-08T14:05:13","guid":{"rendered":"https:\/\/www.welovecycling.com\/cs\/?p=33027"},"modified":"2026-04-08T14:27:01","modified_gmt":"2026-04-08T12:27:01","slug":"kava-cyklistika-a-genetika-je-espresso-pro-kazdeho","status":"publish","type":"post","link":"https:\/\/www.welovecycling.com\/cs\/2026\/04\/08\/kava-cyklistika-a-genetika-je-espresso-pro-kazdeho\/","title":{"rendered":"K\u00e1va, cyklistika a genetika. Je espresso pro ka\u017ed\u00e9ho?"},"content":{"rendered":"

Vztah k\u00e1va a cyklistika je t\u00e9m\u011b\u0159 posv\u00e1tn\u00fd. Pro mnoh\u00e9 z n\u00e1s je espresso po probuzen\u00ed stejn\u011b d\u016fle\u017eit\u00e9 jako spr\u00e1vn\u011b nafouknut\u00e9 pl\u00e1\u0161t\u011b. Sed\u011bt p\u0159ed \u0161vihem, usrk\u00e1vat k\u00e1vu a \u010dekat na par\u0165\u00e1ky p\u0159ipraven\u00e9 sd\u00edlet kilometry i bolest \u2013 to je ritu\u00e1l, kter\u00fd definuje za\u010d\u00e1tek ka\u017ed\u00e9 po\u0159\u00e1dn\u00e9 j\u00edzdy.<\/strong><\/p>\n

Jen\u017ee co kdy\u017e tenhle milovan\u00fd ritu\u00e1l nen\u00ed pro v\u0161echny tak \u00fapln\u011b v\u00fdhodn\u00fd?<\/p>\n

Kofein: palivo\u2026 nebo brzda?<\/strong><\/h2>\n

Dlouh\u00e1 l\u00e9ta se kofein pova\u017euje za leg\u00e1ln\u00ed doping. Zlep\u0161uje soust\u0159ed\u011bn\u00ed, oddaluje \u00fanavu a pom\u00e1h\u00e1 n\u00e1m jet o n\u011bco d\u00e9le i rychleji. Jen\u017ee nov\u011bj\u0161\u00ed v\u00fdzkumy ukazuj\u00ed, \u017ee realita je mnohem pest\u0159ej\u0161\u00ed \u2013 a kl\u00ed\u010dovou roli hraje genetika.<\/p>\n

Konkr\u00e9tn\u011b gen CYP1A2, kter\u00fd ovliv\u0148uje, jak rychle na\u0161e t\u011blo kofein zpracov\u00e1v\u00e1. A pr\u00e1v\u011b podle n\u011bj se d\u011bl\u00edme do t\u0159\u00ed skupin.<\/p>\n

\"\"<\/a>
K\u00e1va je pro mnoh\u00e9 samoz\u0159ejmost\u00ed a dokonce podporuje jejich v\u00fdkon. Pro dal\u0161\u00ed je ale brzdou. Foto: Michal \u010cerven\u00fd<\/em><\/figcaption><\/figure>\n

Rychl\u00ed metaboliz\u00e1to\u0159i tvo\u0159\u00ed p\u0159ibli\u017en\u011b pades\u00e1t procent populace. Kofein spaluj\u00ed efektivn\u011b a \u010dasto z n\u011bj skute\u010dn\u011b t\u011b\u017e\u00ed.<\/p>\n

St\u0159edn\u00ed metaboliz\u00e1to\u0159i tvo\u0159\u00ed p\u0159ibli\u017en\u011b \u010dty\u0159icet procent populace. \u00da\u010dinek je sp\u00ed\u0161e neutr\u00e1ln\u00ed.<\/p>\n

Pomal\u00ed metaboliz\u00e1to\u0159i maj\u00ed v populaci p\u0159ibli\u017en\u011b desetiprocentn\u00ed zastoupen\u00ed. K\u00e1va je pro tuhle skupinu nep\u0159\u00edjemnost\u00ed.<\/p>\n

Kdy\u017e k\u00e1va zpomaluje<\/strong><\/h2>\n

Jedna studie se rozhodla j\u00edt v\u00edc do hloubky. Sto jedna cyklist\u016f podstoupilo genetick\u00e9 testy a n\u00e1sledn\u011b t\u0159ikr\u00e1t absolvovalo deset kilometr\u016f dlouh\u00e9 j\u00edzdy na trena\u017e\u00e9ru. P\u0159ed ka\u017edou j\u00edzdou dostali bu\u010f placebo, n\u00edzkou d\u00e1vku kofeinu, nebo d\u00e1vku vy\u0161\u0161\u00ed.<\/p>\n

V\u00fdsledky? Rychl\u00ed metaboliz\u00e1to\u0159i byli po kofeinu o 5\u20137 procent rychlej\u0161\u00ed. St\u0159edn\u00ed metaboliz\u00e1to\u0159i zaznamenali jen mal\u00e9 zm\u011bny. Pomal\u00ed metaboliz\u00e1to\u0159i byli a\u017e o 17 procent pomalej\u0161\u00ed. Ano, \u010dtete spr\u00e1vn\u011b. Pro \u010d\u00e1st jezdc\u016f k\u00e1va neznamenala boost, ale v\u00fdrazn\u00e9 zpomalen\u00ed.<\/p>\n

\n
\"jak-zrychlit-pri-jizde-v-kopci\"\/<\/a><\/div>
\n Zdrav\u00ed a tr\u00e9nink<\/a>\n <\/div>\n
\n \n

Jak zrychlit p\u0159i j\u00edzd\u011b v kopci?<\/span><\/h3>\n <\/a>\n <\/div>\n <\/article>\n<\/div>\n

D\u016fvodem je reakce c\u00e9vn\u00edho syst\u00e9mu. Kofein zp\u016fsobuje z\u00fa\u017een\u00ed c\u00e9v a u pomal\u00fdch metaboliz\u00e1tor\u016f tento efekt trv\u00e1 d\u00e9le. V\u00fdsledek? Hor\u0161\u00ed pr\u016ftok krve do sval\u016f, rychlej\u0161\u00ed \u00fanava a pocit, \u017ee \u201eto dnes prost\u011b nejede\u201c.<\/p>\n

A to nen\u00ed jen ot\u00e1zka v\u00fdkonu. Star\u0161\u00ed studie nazna\u010duj\u00ed, \u017ee u t\u011bchto jedinc\u016f m\u016f\u017ee nadm\u011brn\u00e1 konzumace kofeinu souviset i s vy\u0161\u0161\u00edm rizikem srde\u010dn\u00edch probl\u00e9m\u016f.<\/p>\n

\"\"<\/a>
Nejv\u011bt\u0161\u00ed cyklistick\u00e9 pov\u011bry? Bez k\u00e1vy nejedu… Foto: Michal \u010cerven\u00fd<\/em><\/figcaption><\/figure>\n

Pt\u00e1te se, zda pat\u0159\u00edte mezi pomal\u00e9 metaboliz\u00e1tory, co jim k\u00e1va p\u016fsob\u00ed pot\u00ed\u017ee? Nemus\u00edte hned na genetick\u00fd test. T\u011blo \u010dasto napov\u00ed samo: nem\u016f\u017eete sp\u00e1t, kdy\u017e si d\u00e1te espresso odpoledne. Jste po n\u00ed nerv\u00f3zn\u00ed nebo rozklepan\u00fd. M\u00e1te pocit, \u017ee v\u00e1s \u201enakopne\u201c a\u017e p\u0159\u00edli\u0161\u2026 A pak rychle vy\u010derp\u00e1.<\/p>\n

Pokud se v tom pozn\u00e1v\u00e1te, mo\u017en\u00e1 v\u00e1\u0161 p\u0159edstartovn\u00ed ritu\u00e1l pot\u0159ebuje drobnou \u00fapravu.<\/p>\n

K\u00e1va, nebo bylinkov\u00fd \u010daj?<\/strong><\/h2>\n

P\u0159edstava, \u017ee by cyklista dobrovoln\u011b vym\u011bnil espresso za bylinkov\u00fd \u010daj, zn\u00ed skoro jako rouh\u00e1n\u00ed. Ale pro n\u011bkter\u00e9 to m\u016f\u017ee b\u00fdt rozd\u00edl mezi skv\u011blou j\u00edzdou a tot\u00e1ln\u00edm utrpen\u00edm. A up\u0159\u00edmn\u011b \u2013 kolikr\u00e1t u\u017e jsi za\u017eil den, kdy nohy prost\u011b nefungovaly? Mo\u017en\u00e1 za to nemohl v\u00edtr, profil trasy ani \u00fanava. Mo\u017en\u00e1 to byl ten \u201enevinn\u00fd\u201c \u0161\u00e1lek<\/a> p\u0159ed startem.<\/p>\n

\n
\"pravidla-jizdy-ve-skupine-aneb-ten-uz-s-nami-nikdy-nejede\"\/<\/a><\/div>
\n Rady & tipy<\/a>\n <\/div>\n
\n \n

Pravidla j\u00edzdy ve skupin\u011b. Aneb \u201eten u\u017e s n\u00e1mi nikdy nejede!\u201c<\/span><\/h3>\n <\/a>\n <\/div>\n <\/article>\n<\/div>\n

P\u0159\u00ed\u0161t\u011b, a\u017e ti kamar\u00e1di po k\u00e1v\u011b odjedou na horizontu, m\u016f\u017ee\u0161 to vz\u00edt s nadhledem. \u201eNe, \u017ee bych nem\u011bl formu. J\u00e1 jsem jen pomal\u00fd metaboliz\u00e1tor kofeinu.\u201c A kdo v\u00ed \u2013 mo\u017en\u00e1 na tom bude v\u00edc pravdy, ne\u017e se zd\u00e1.<\/p>\n","protected":false},"excerpt":{"rendered":"

Vztah k\u00e1va a cyklistika je t\u00e9m\u011b\u0159 posv\u00e1tn\u00fd. Pro mnoh\u00e9 z n\u00e1s je espresso po probuzen\u00ed stejn\u011b d\u016fle\u017eit\u00e9 jako spr\u00e1vn\u011b nafouknut\u00e9 […]<\/p>\n","protected":false},"author":138,"featured_media":33029,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[126,1025,2001,56,1075,4630,27,17,67],"global-categories":[411],"class_list":["post-33027","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-zdravi-a-trenink","tag-cyklistika","tag-espresso","tag-gravel","tag-horska-cyklistika","tag-kava-a-cyklistika","tag-rychli-metabolizatori","tag-trenink","tag-vyziva","tag-zdravi-a-trenink","global-categories-cycling"],"yoast_head":"\nK\u00e1va, cyklistika a genetika. 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