{"id":7875,"date":"2020-06-23T10:00:55","date_gmt":"2020-06-23T08:00:55","guid":{"rendered":"https:\/\/www.welovecycling.com\/cs\/?p=7875"},"modified":"2020-06-22T18:04:17","modified_gmt":"2020-06-22T16:04:17","slug":"jak-spocitat-spalene-kalorie-na-kole-z-wattu","status":"publish","type":"post","link":"https:\/\/www.welovecycling.com\/cs\/2020\/06\/23\/jak-spocitat-spalene-kalorie-na-kole-z-wattu\/","title":{"rendered":"Jak spo\u010d\u00edtat sp\u00e1len\u00e9 kalorie na kole z\u00a0watt\u016f?"},"content":{"rendered":"

Cyklist\u00e9 maj\u00ed p\u0159i po\u010d\u00edt\u00e1n\u00ed kalori\u00ed z\u00e1sadn\u00ed v\u00fdhodu oproti b\u011b\u017ec\u016fm, plavc\u016fm, jog\u00edn\u016fm, kulturist\u016fm a vlastn\u011b v\u0161em dal\u0161\u00edm atlet\u016fm na sv\u011bt\u011b. Nemus\u00ed toti\u017e spol\u00e9hat na nep\u0159esn\u00e9 kalorick\u00e9 tabulky a aplikace. D\u00edky watt metr\u016fm mohou cyklist\u00e9 spo\u010d\u00edtat sp\u00e1len\u00e9 kalorie na kole velice p\u0159esn\u011b. Kolik kalori\u00ed tedy sp\u00e1l\u00ed hodina j\u00edzdy p\u0159i pr\u016fm\u011brn\u00e9m v\u00fdkonu 200 watt\u016f?<\/strong><\/p>\n

Existuje jednoduch\u00e1 rovnice. V\u0161e, co k v\u00fdpo\u010dtu pot\u0159ebujeme, je znalost \u010dasu str\u00e1ven\u00e9ho j\u00edzdou na kole, pr\u016fm\u011brn\u00fd v\u00fdkon za dan\u00fd \u010das a n\u00e1sleduj\u00edc\u00ed z\u00e1kladn\u00ed rovnici: v\u00fdkon (watty) * \u010das (vte\u0159iny) = energie (joul).<\/p>\n

\n
\"zavodni-bikepacking-jizda-na-hrane-lidskych-moznosti\"\/<\/a><\/div>
\n Rady & tipy<\/a>\n <\/div>\n
\n \n

Z\u00e1vodn\u00ed bikepacking? J\u00edzda na hran\u011b lidsk\u00fdch mo\u017enost\u00ed<\/span><\/h3>\n <\/a>\n <\/div>\n <\/article>\n<\/div>\n

Vydanou energii ale budeme cht\u00edt m\u011b\u0159it v\u00a0kalori\u00edch, ne v\u00a0joulech. To, \u010demu se b\u011b\u017en\u011b \u0159\u00edk\u00e1 zjednodu\u0161en\u011b kalorie, jsou ve skute\u010dnosti kilokalorie, proto se tak\u00e9 pou\u017e\u00edv\u00e1 zkratka kcal a ne cal. Z\u00a0t\u011bchto d\u016fvod\u016f budeme muset jouly na kalorie p\u0159ev\u00e9st v\u00a0pom\u011bru 1 joul = 0,238902957619 kcal.<\/p>\n

Cyklista je pouze 24% efektivn\u00ed motor<\/strong><\/h2>\n

Dal\u0161\u00edm probl\u00e9mem t\u00e9to rovnice je fakt, \u017ee \u010dlov\u011bk nen\u00ed stoprocentn\u011b efektivn\u00ed motor. Spoustu energie p\u0159i \u0161lap\u00e1n\u00ed na kole vynalo\u017e\u00edme na produkci tepla, udr\u017eov\u00e1n\u00ed rovnov\u00e1hy a podobn\u011b. Dle odhad\u016f je efektivita \u010dlov\u011bka na kole pouze p\u0159ibli\u017en\u011b 24 procent.\u00a0Jin\u00fdmi slovy cyklista sp\u00e1l\u00ed 5 joul\u016f na ka\u017ed\u00fd 1 joul, kter\u00fd zaznamen\u00e1 watt metr v ped\u00e1lech.<\/p>\n

\"Watt<\/a>
Watt metr m\u016f\u017ee velmi dob\u0159e poslou\u017eit k z\u00edsk\u00e1n\u00ed informac\u00ed, kolik jste p\u0159i tr\u00e9ninku sp\u00e1lili kalori\u00ed. Foto: Michal \u010cerven\u00fd<\/em><\/figcaption><\/figure>\n

Re\u00e1ln\u00fd v\u00fddej v\u00a0joulech tedy mus\u00edme vyn\u00e1sobit koeficientem 0,24 abychom tuto n\u00edzkou efektivitu zohlednili. V\u00fd\u0161e zm\u00edn\u011bn\u00fd koeficient pro p\u0159evod mezi jouly a kilokaloriemi 0,2389 je shodou okolnost\u00ed velice podobn\u00fd. Oba v\u00fd\u0161e zm\u00edn\u011bn\u00e9 probl\u00e9my se tedy navz\u00e1jem vyru\u0161\u00ed, tak\u017ee nakonec sta\u010d\u00ed, kdy\u017e v\u00a0p\u016fvodn\u00ed rovnici nahrad\u00edme jouly za kcal.<\/p>\n

To, \u017ee jsme kalorie n\u00e1sobili 1000, abychom dostali kilokalorie (kcal) znamen\u00e1, \u017ee mus\u00edme v\u00a0rovnici upravit i \u010das. Posledn\u00ed zm\u011bnou tedy bude p\u0159idan\u00fd n\u00e1sobek koeficientem 3,6 tak, abychom mohli vypl\u0148ovat \u010das v\u00a0hodin\u00e1ch. T\u00edm dost\u00e1v\u00e1me fin\u00e1ln\u00ed pou\u017eitelnou podobu rovnice.<\/p>\n

\n
\"po-pivu-mi-tezknou-nohy-smeje-se-svetovy-kardiochirurg-nejvetsi-adrenalin-zazil-na-draze\"\/<\/a><\/div>
\n Z\u00c1BAVA<\/a>\n <\/div>\n
\n \n

Po pivu mi t\u011b\u017eknou nohy, sm\u011bje se sv\u011btov\u00fd kardiochirurg. Nejv\u011bt\u0161\u00ed adrenalin za\u017eil na dr\u00e1ze<\/span><\/h3>\n <\/a>\n <\/div>\n <\/article>\n<\/div>\n

Sta\u010d\u00ed tedy vyn\u00e1sobit pr\u016fm\u011brn\u00fd v\u00fdkon na kole ve wattech po\u010dtem hodin, kter\u00e9 j\u00edzda trvala, a v\u00fdslednou hodnotu je\u0161t\u011b vyn\u00e1sobit koeficientem 3,6. V\u00fdsledn\u00e9 \u010d\u00edslo ud\u00e1v\u00e1 po\u010det sp\u00e1len\u00fdch kalori\u00ed b\u011bhem j\u00edzdy:\u00a0 v\u00fdkon (watty) * \u010das (hodiny) * 3,6 = energie (kcal).<\/p>\n

Froome dok\u00e1\u017ee udr\u017eet v\u00fdkon 414 watt\u016f za 30 minut<\/strong><\/h2>\n

Nyn\u00ed m\u016f\u017eeme snadno odpov\u011bd\u011bt na \u00favodn\u00ed ot\u00e1zku kolik kalori\u00ed sp\u00e1l\u00ed hodina j\u00edzdy, jestli\u017ee je 200 watt\u016f pr\u016fm\u011brn\u00fd v\u00fdkon sledovan\u00e9ho cyklisty: 200 watt\u016f * 1 hodina * 3,6 = 720 kcal.<\/p>\n

Jen pro zaj\u00edmavost, \u010dty\u0159n\u00e1sobn\u00fd v\u00edt\u011bz Tour de France Chris Froome z formace Ineos je schopn\u00fd udr\u017eet v\u00fdkon a\u017e 414 watt\u016f po dobu 30 minut. To znamen\u00e1, \u017ee je schopn\u00fd sp\u00e1lit stejn\u00e9 mno\u017estv\u00ed jako docela fit cyklista za polovinu \u010dasu (414 watt\u016f * 0,5 hodin * 3.6 = 745 kcal).<\/p>\n

\"Cyklista<\/a>
Cyklista Chris Froome z t\u00fdmu Ineos b\u011bhem p\u0159\u00edpravy na trena\u017e\u00e9ru. Foto: instagram Chrise Froomea<\/em><\/figcaption><\/figure>\n

Samoz\u0159ejm\u011b i tato \u010d\u00edsla nejsou absolutn\u011b bezchybn\u00e1. Zejm\u00e9na koeficient efektivity cyklisty v\u00a0podob\u011b \u010dty\u0159iadvaceti procent je pouze odhad. D\u00e1 se ale \u0159\u00edci, \u017ee takto spo\u010d\u00edtan\u00e9 hodnoty kalori\u00ed jsou p\u0159esn\u00e9 asi s\u00a0odchylkou \u010dty\u0159 procent.<\/p>\n

Jde ale o v\u00fdrazn\u011b p\u0159esn\u011bj\u0161\u00ed v\u00fdpo\u010det, ne\u017e nab\u00edz\u00ed v\u011bt\u0161ina kalorick\u00fdch tabulek, kalkula\u010dek a aplikac\u00ed, u kter\u00fdch je nutn\u00e9 po\u010d\u00edtat s odchylkou nejm\u00e9n\u011b t\u0159icet procent, ale \u010dasto i daleko vy\u0161\u0161\u00ed.<\/p>\n","protected":false},"excerpt":{"rendered":"

Cyklist\u00e9 maj\u00ed p\u0159i po\u010d\u00edt\u00e1n\u00ed kalori\u00ed z\u00e1sadn\u00ed v\u00fdhodu oproti b\u011b\u017ec\u016fm, plavc\u016fm, jog\u00edn\u016fm, kulturist\u016fm a vlastn\u011b v\u0161em dal\u0161\u00edm atlet\u016fm na sv\u011bt\u011b. Nemus\u00ed […]<\/p>\n","protected":false},"author":122,"featured_media":7901,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[15,6],"tags":[126,963,27,965,67],"global-categories":[411],"class_list":["post-7875","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-rady-tipy","category-zdravi-a-trenink","tag-cyklistika","tag-kalorie-a-cyklistika","tag-trenink","tag-watt-metr","tag-zdravi-a-trenink","global-categories-cycling"],"yoast_head":"\nJak spo\u010d\u00edtat sp\u00e1len\u00e9 kalorie na kole z\u00a0watt\u016f? | \u0160koda We Love Cycling - \u010cesk\u00e1 republika<\/title>\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\/2020\/06\/23\/jak-spocitat-spalene-kalorie-na-kole-z-wattu\/\" \/>\n<meta property=\"og:locale\" content=\"cs_CZ\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Jak spo\u010d\u00edtat sp\u00e1len\u00e9 kalorie na kole z\u00a0watt\u016f?\" \/>\n<meta property=\"og:description\" content=\"Cyklist\u00e9 maj\u00ed p\u0159i po\u010d\u00edt\u00e1n\u00ed kalori\u00ed z\u00e1sadn\u00ed v\u00fdhodu oproti b\u011b\u017ec\u016fm, plavc\u016fm, jog\u00edn\u016fm, kulturist\u016fm a vlastn\u011b v\u0161em dal\u0161\u00edm atlet\u016fm na sv\u011bt\u011b. 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