{"id":168003,"date":"2018-08-28T00:00:00","date_gmt":"2018-08-27T22:00:00","guid":{"rendered":"https:\/\/gymbeam.com\/blog\/kofein-a-jak-jim-zefektivnite-svuj-trenink\/"},"modified":"2023-09-08T13:11:29","modified_gmt":"2023-09-08T11:11:29","slug":"kofein-a-jak-jim-zefektivnite-svuj-trenink","status":"publish","type":"post","link":"https:\/\/gymbeam.cz\/blog\/kofein-a-jak-jim-zefektivnite-svuj-trenink\/","title":{"rendered":"Kofein a jak j\u00edm zefektivn\u00edte sv\u016fj tr\u00e9nink"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_72 ez-toc-wrap-left counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/gymbeam.cz\/blog\/kofein-a-jak-jim-zefektivnite-svuj-trenink\/#Kofein_%E2%80%93_proc_jednomu_pomuze_a_na_druheho_neucinkuje\" title=\"Kofein &#8211; pro\u010d jednomu pom\u016f\u017ee a na druh\u00e9ho ne\u00fa\u010dinkuje?\">Kofein &#8211; pro\u010d jednomu pom\u016f\u017ee a na druh\u00e9ho ne\u00fa\u010dinkuje?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/gymbeam.cz\/blog\/kofein-a-jak-jim-zefektivnite-svuj-trenink\/#Odkud_kofein_pochazi\" title=\"Odkud&nbsp;kofein&nbsp;poch\u00e1z\u00ed?\">Odkud&nbsp;kofein&nbsp;poch\u00e1z\u00ed?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/gymbeam.cz\/blog\/kofein-a-jak-jim-zefektivnite-svuj-trenink\/#Jak_ovlivnuje_kofein_fyzicky_vykon_sportovcu\" title=\"Jak ovliv\u0148uje kofein fyzick\u00fd v\u00fdkon sportovc\u016f?\">Jak ovliv\u0148uje kofein fyzick\u00fd v\u00fdkon sportovc\u016f?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/gymbeam.cz\/blog\/kofein-a-jak-jim-zefektivnite-svuj-trenink\/#Ma_kofein_i_vedlejsi_ucinky\" title=\"M\u00e1 kofein i vedlej\u0161\u00ed \u00fa\u010dinky?\">M\u00e1 kofein i vedlej\u0161\u00ed \u00fa\u010dinky?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/gymbeam.cz\/blog\/kofein-a-jak-jim-zefektivnite-svuj-trenink\/#Jake_jsou_nejoblibenejsi_zdroje_kofeinu\" title=\"Jak\u00e9 jsou nejobl\u00edben\u011bj\u0161\u00ed zdroje kofeinu?\">Jak\u00e9 jsou nejobl\u00edben\u011bj\u0161\u00ed zdroje kofeinu?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/gymbeam.cz\/blog\/kofein-a-jak-jim-zefektivnite-svuj-trenink\/#Nejcastejsi_otazky_spojene_s_kofeinem\" title=\"Nej\u010dast\u011bj\u0161\u00ed ot\u00e1zky spojen\u00e9 s kofeinem\">Nej\u010dast\u011bj\u0161\u00ed ot\u00e1zky spojen\u00e9 s kofeinem<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/gymbeam.cz\/blog\/kofein-a-jak-jim-zefektivnite-svuj-trenink\/#_Kolik_napoju_musime_vypit_abychom_dosahli_doporucene_400_mg_hranice_prijmu_kofeinu\" title=\"&nbsp;Kolik n\u00e1poj\u016f mus\u00edme vyp\u00edt, abychom dos\u00e1hli doporu\u010den\u00e9 400 mg hranice p\u0159\u00edjmu kofeinu?\">&nbsp;Kolik n\u00e1poj\u016f mus\u00edme vyp\u00edt, abychom dos\u00e1hli doporu\u010den\u00e9 400 mg hranice p\u0159\u00edjmu kofeinu?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/gymbeam.cz\/blog\/kofein-a-jak-jim-zefektivnite-svuj-trenink\/#Jak_uzivat_kofein\" title=\"Jak u\u017e\u00edvat kofein?\">Jak u\u017e\u00edvat kofein?<\/a><\/li><\/ul><\/nav><\/div>\n\n<p>V dne\u0161n\u00ed dob\u011b vyu\u017e\u00edv\u00e1 kofein&nbsp;m\u00edsto&nbsp;<a title=\"P\u0159edtr\u00e9ningov\u00e9 stimulanty\" href=\"https:\/\/gymbeam.cz\/predtreninkove-stimulanty\" target=\"_blank\" rel=\"noopener noreferrer\">p\u0159edtr\u00e9ninkov\u00e9ho stimulantu<\/a> jako hlavn\u00ed ,,\u017eivotabudi\u010d\u201c p\u0159ed tr\u00e9ninkem st\u00e1le v\u00edce a v\u00edce lid\u00ed.&nbsp;Jak je v\u0161ak mo\u017en\u00e9, \u017ee&nbsp;zat\u00edmco<strong> jednomu \u010dlov\u011bku dod\u00e1 \u0161\u00e1lek k\u00e1vy pot\u0159ebnou&nbsp;energii,&nbsp;druh\u00e9mu zp\u016fsob\u00ed \u00fanavu a nesoust\u0159ed\u011bnost<\/strong>? Pod\u00edvejme se tedy spole\u010dn\u011b na to, jak\u00e9 v\u00fdhody v sob\u011b kofein ukr\u00fdv\u00e1, a jak si&nbsp;d\u00edky n\u011bmu zefektivn\u00edte v\u00e1\u0161 tr\u00e9nink.<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Kofein_%E2%80%93_proc_jednomu_pomuze_a_na_druheho_neucinkuje\"><\/span><strong>Kofein &#8211; pro\u010d jednomu pom\u016f\u017ee a na druh\u00e9ho ne\u00fa\u010dinkuje?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Kanadsk\u00e1 studie se podrobn\u011b zam\u011b\u0159ila na to, jak lidsk\u00e9 t\u011blo zpracov\u00e1v\u00e1&nbsp;<a href=\"https:\/\/gymbeam.cz\/kofein\" class=\"ek-link\">kofein<\/a>.&nbsp;<span style=\"color:#ff6600\" class=\"tadv-color\">[1]<\/span>&nbsp;Nutri\u010dn\u00ed poradci a v\u011bdci z univerzity v Torontu podrobili v\u00fdzkumu 101 mu\u017esk\u00fdch atlet\u016f, jejich\u017e pr\u016fm\u011brn\u00fd v\u011bk byl 25 let. Tato skupina zahrnovala cyklisty, marat\u00f3nsk\u00e9 b\u011b\u017ece, ly\u017ea\u0159e, hr\u00e1\u010de baseballu, boxery a powerliftery.&nbsp;Pomoc\u00ed vzork\u016f slin byli&nbsp;<strong>v\u00fdzkumn\u00edci schopni ur\u010dit hodnotu kofeinu,<\/strong>&nbsp;kterou byl ka\u017ed\u00fd z&nbsp;atlet\u016f schopen ve sv\u00e9m metabolismu zpracovat.&nbsp;A jak to dok\u00e1zali?&nbsp;<strong>Na\u0161e t\u011blo obsahuje gen naz\u00fdvan\u00fd CYP1A2<\/strong>.&nbsp;Zm\u011bny v na\u0161\u00ed DNA mohou ovlivnit to,&nbsp;jak efektivn\u00ed bude tento gen v\u016f\u010di zpracov\u00e1n\u00ed&nbsp;kofeinu.&nbsp;Na z\u00e1klad\u011b v\u00fdsledk\u016f rozd\u011blili skupiny na lidi&nbsp;s rychl\u00fdm metabolismem a pomal\u00fdm&nbsp;metabolismem,&nbsp;a dok\u00e1zali, \u017ee to,&nbsp;<strong>zda kofein nakopne v\u00e1\u0161 v\u00fdkon nebo ne, je prost\u011b ve va\u0161ich genech.&nbsp;<\/strong><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/wpstatic.gymbeam.com\/blog\/wp-content\/uploads\/mageblog\/iStock-869647352.jpg\" alt=\"Kofein a jak j\u00edm zefektivn\u00edte sv\u016fj tr\u00e9nink\" style=\"width:843px;height:562px\" width=\"843\" height=\"562\" title=\"Kofein a jak j\u00edm zefektivn\u00edte sv\u016fj tr\u00e9nink\"\/><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\"><strong>Jak prob\u00edhal v\u00fdzkum?<\/strong><\/h3>\n\n\n\n<p>Jedenkr\u00e1t t\u00fddn\u011b po dobu 3 t\u00fddn\u016f se v\u0161ichni tito atleti dostavili do testovac\u00edho centra,&nbsp;<strong>kde&nbsp;<\/strong><strong>dostali tabletu s obsahem kofeinu nebo&nbsp;placeba.<\/strong>&nbsp;Atleti odpo\u010d\u00edvali 25 minut a n\u00e1sledn\u011b ud\u011blali p\u00e1r zah\u0159\u00edvac\u00edch cvi\u010den\u00ed.&nbsp;Pokra\u010dovali p\u0159edem dohodnutou kombinac\u00ed cvik\u016f, mezi nimi\u017e se nach\u00e1zel i takzvan\u00fd Wingate test.&nbsp;Ten&nbsp;m\u011b\u0159il nejvy\u0161\u0161\u00ed aerobn\u00ed s\u00edlu \u010di cyklistiku&nbsp;na stacion\u00e1rn\u00edm kole na 10 kilometr\u016f.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>Po 4 t\u00fddnech porovnali v\u00fdzkumn\u00edci v\u00fdsledky cvi\u010den\u00ed a v\u00fdsledky test\u016f genu CYP1A2, p\u0159i\u010dem\u017e zjistili, \u017ee&nbsp;kofein pomohl 49 ze 101 atlet\u016f (s rychl\u00fdm metabolismem)&nbsp;a&nbsp;<strong>vylep\u0161il jim v\u00fdkon o 6,8%.<\/strong>&nbsp;Dal\u0161\u00edch 44 atlet\u016f (s pomal\u00fdm metabolismem)&nbsp;<strong>nezaznamenalo \u017e\u00e1dnou zm\u011bnu ve v\u00fdkonu<\/strong>, zat\u00edmco 8 atlet\u016f s pomal\u00fdm metabolismem zaznamenalo&nbsp;<strong>sn\u00ed\u017een\u00ed v\u00fdkonu t\u00e9m\u011b\u0159 o 14%<\/strong><strong>&nbsp;&#8211;<\/strong>&nbsp;to v\u0161e kv\u016fli tomu, jak gen CYP1A2 reaguje na kofein.<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Odkud_kofein_pochazi\"><\/span><strong>Odkud&nbsp;kofein&nbsp;poch\u00e1z\u00ed?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Kofein je v p\u0159\u00edrod\u011b siln\u00fdm insekticidem, kter\u00fd produkuj\u00ed rostliny, aby&nbsp;odrovnaly sv\u00e9ho nep\u0159\u00edtele &#8211; \u0161k\u016fdce.&nbsp;<strong>Stejn\u011b jako u \u010dokol\u00e1dy \u010di gran\u00e1tov\u00e9ho jablka sah\u00e1 historie kofeinu a\u017e do dob na\u0161ich p\u0159edk\u016f.<\/strong>&nbsp;Existuje n\u011bkolik p\u0159\u00edb\u011bh\u016f o jeho p\u016fvodu, v\u010detn\u011b \u010d\u00ednsk\u00e9 legendy, v&nbsp;n\u00ed\u017e starov\u011bk\u00fd \u010d\u00ednsk\u00fd c\u00edsa\u0159 Shennong ve 3000 letech p.n.l.&nbsp;n\u00e1hodou objevil kofein,&nbsp;kdy\u017e se napil va\u0159\u00edc\u00ed vody, do kter\u00e9 omylem spadlo n\u011bkolik l\u00edstk\u016f k\u00e1vovn\u00edku.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>A\u0165 u\u017e je to pravda, nebo ne, zd\u00e1 se, \u017ee<strong>&nbsp;lid\u00e9 znali \u00fa\u010dinky kofeinov\u00fdch n\u00e1poj\u016f od dob, kter\u00e9 dok\u00e1\u017eeme alespo\u0148 p\u0159ibli\u017en\u011b odhadnout.<\/strong>&nbsp;Starov\u011bk\u00fd \u010d\u00ednsk\u00fd filozof Lao-Tzu nazval tento energetick\u00fd mok&nbsp;,<strong>,elix\u00edr \u017eivota\u201c<\/strong>&nbsp;ji\u017e v 6. stolet\u00ed p.n.l.&nbsp;<span style=\"color:#ff6600\" class=\"tadv-color\">[2]<\/span><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/wpstatic.gymbeam.com\/blog\/wp-content\/uploads\/mageblog\/iStock-484009952.jpg\" alt=\"Kofein a jak j\u00edm zefektivn\u00edte sv\u016fj tr\u00e9nink\" style=\"width:843px;height:562px\" width=\"843\" height=\"562\" title=\"Kofein a jak j\u00edm zefektivn\u00edte sv\u016fj tr\u00e9nink\"\/><\/figure>\n<\/div>\n\n\n<p>K\u00e1va m\u00e1 v\u00edce ne\u017e bohatou historii, kter\u00e1 spad\u00e1 do 14. a\u017e 15. stolet\u00ed arabsk\u00fdch kultur, kde byla krom\u011b skv\u011bl\u00e9ho artiklu k obchodov\u00e1n\u00ed tak\u00e9&nbsp;<strong>popul\u00e1rn\u00edm \u017eivotabudi\u010dem a zp\u016fsobem, jak neusnout p\u0159i ve\u010dern\u00edch&nbsp;modlitb\u00e1ch.<\/strong>&nbsp;Odtud to byl jen krok k tomu, aby se obchodn\u00edmi cestami dostala do Evropy spole\u010dn\u011b s \u010dajem a horkou \u010dokol\u00e1dou. Mnohem pozd\u011bji, p\u0159ibli\u017en\u011b v 19. stolet\u00ed,<strong>&nbsp;byl kofein&nbsp;<\/strong><strong>poprv\u00e9 objeven v izolovan\u00e9 form\u011b n\u011bmeck\u00fdmi chemiky,<\/strong>&nbsp;a kr\u00e1tce pot\u00e9 i jejich francouzsk\u00fdmi kolegy.&nbsp;Odtud poch\u00e1z\u00ed i jeho n\u00e1zev &#8220;kaffee&#8221;, kter\u00fd v n\u011bm\u010din\u011b a francouz\u0161tin\u011b vyjad\u0159uje k\u00e1vu.&nbsp;V dne\u0161n\u00ed dob\u011b ho z\u00edsk\u00e1v\u00e1me nej\u010dast\u011bji jako&nbsp;extrahovan\u00fd produkt z rostlin.<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Jak_ovlivnuje_kofein_fyzicky_vykon_sportovcu\"><\/span><strong>Jak ovliv\u0148uje kofein fyzick\u00fd v\u00fdkon sportovc\u016f?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><a href=\"https:\/\/gymbeam.cz\/kofein\" target=\"_blank\" rel=\"noreferrer noopener\">Kofein<\/a>&nbsp;p\u016fsob\u00ed na centr\u00e1ln\u00ed nervov\u00fd syst\u00e9m t\u00edm, \u017ee&nbsp;<strong>podporuje m\u00edchu, dr\u00e1\u017ed\u00ed svalov\u00e1 vl\u00e1kna a sni\u017euje vn\u00edm\u00e1n\u00ed \u00fanavy a svalov\u00e9&nbsp;bolesti.<\/strong>Tento fakt byl prok\u00e1z\u00e1n zlep\u0161en\u00edm fyzick\u00e9 v\u00fdkonnosti u v\u0161ech druh\u016f sport\u016f.&nbsp;Nesm\u00edme v\u0161ak zapom\u00ednat na to, \u017ee<strong>&nbsp;kofein&nbsp;za\u010d\u00edn\u00e1 p\u016fsobit 30 a\u017e 45 minut po jeho u\u017eit\u00ed,<\/strong>a proto pokud vypijete sv\u016fj \u0161\u00e1lek k\u00e1vy t\u011bsn\u011b p\u0159ed tr\u00e9ninkem, o\u010dek\u00e1van\u00fd efekt se m\u016f\u017ee dostavit a\u017e pozd\u011bji.&nbsp;<span style=\"color:#ff6600\" class=\"tadv-color\">[3]&nbsp;<\/span> &nbsp;<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>4 hlavn\u00ed v\u00fdhody kofeinu pro sportovce<\/strong><\/h3>\n\n\n\n<p><strong>1. Zlep\u0161en\u00e1 soust\u0159ed\u011bnost a koncentrace<\/strong><\/p>\n\n\n\n<p>Zv\u00fd\u0161en\u00edm dopaminu a adrenalinu<strong>&nbsp;dok\u00e1\u017ee kofein pozitivn\u011b ovliv\u0148ovat n\u00e1ladu a soust\u0159ed\u011bn\u00ed.<\/strong>&nbsp;Pokud v\u0161ak pijete k\u00e1vu pravideln\u011b, produkce dopaminu se&nbsp;sn\u00ed\u017e\u00ed,&nbsp;tak\u017ee va\u0161e t\u011blo pot\u0159ebuje kofein pouze na to, aby se hladina dopaminu dostala na norm\u00e1ln\u00ed \u00farove\u0148.&nbsp;V tomto bod\u011b m\u016f\u017ee b\u00fdt zv\u00fd\u0161en\u00ed soust\u0159ed\u011bnosti jen chvilkov\u00e1 z\u00e1le\u017eitost.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/wpstatic.gymbeam.com\/blog\/wp-content\/uploads\/mageblog\/iStock-918621696.jpg\" alt=\"Kofein - Zlep\u0161en\u00e1 soust\u0159ed\u011bnost a koncentrace\" style=\"width:843px;height:562px\" width=\"843\" height=\"562\" title=\"Kofein - Zlep\u0161en\u00e1 soust\u0159ed\u011bnost a koncentrace\"\/><\/figure>\n<\/div>\n\n\n<p>Kofein m\u016f\u017ee tak\u00e9 sn\u00ed\u017eit ,,pracuj\u00edc\u00ed\u201c pam\u011b\u0165 dokonce i u lid\u00ed, kte\u0159\u00ed nep\u0159ij\u00edmaj\u00ed kofein pravideln\u011b, a to pravd\u011bpodobn\u011b&nbsp;kv\u016fli siln\u00e9 stimulaci organismu.&nbsp;Studie zve\u0159ejn\u011bn\u00e1 v \u010dasopise Journal of Strength and Conditioning zjistila, \u017ee&nbsp;<strong>kofein pod\u00e1van\u00fd p\u0159ed nam\u00e1hav\u00fdm tr\u00e9ninkem dok\u00e1zal zv\u00fd\u0161it intenzitu cvi\u010den\u00ed<\/strong>&nbsp;a zlep\u0161it koncentraci.&nbsp;P\u0159\u00edjem kofeinu dok\u00e1\u017ee tak\u00e9 zlep\u0161it reak\u010dn\u00ed dobu,&nbsp;<strong>co\u017e&nbsp;m\u016f\u017ee b\u00fdt n\u00e1pomocn\u00e9 zejm\u00e9na u sport\u016f,<\/strong>&nbsp;ve kter\u00fdch se&nbsp;<strong>vy\u017eaduje rychl\u00e9 rozhodov\u00e1n\u00ed<\/strong>&nbsp;&#8211; nap\u0159\u00edklad fotbal nebo basketbal.<span style=\"color:#ff6600\" class=\"tadv-color\">&nbsp;[4]<\/span><\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n    <link href=\"https:\/\/gymbeam.com\/blog\/wp-content\/themes\/wp-gymbeam-blog-theme\/css\/vue\/index.css\" rel=\"preload\" as=\"style\">\n    <link href=\"https:\/\/gymbeam.com\/blog\/wp-content\/themes\/wp-gymbeam-blog-theme\/js\/vue\/chunk-vendors.js\" rel=\"preload\" as=\"script\">\n    <link href=\"https:\/\/gymbeam.com\/blog\/wp-content\/themes\/wp-gymbeam-blog-theme\/js\/vue\/index.js\" rel=\"preload\" as=\"script\">\n    <link data-no-optimize=\"1\" href=\"https:\/\/gymbeam.com\/blog\/wp-content\/themes\/wp-gymbeam-blog-theme\/css\/vue\/index.css\" rel=\"stylesheet\">\n\n    <h2>\n        You might be interested in these products:    <\/h2>\n\n    <div data-app=\"recommended\" data-products=\"33457,29080,7067,55609,34231,53755,258,7185,42481\" ><\/div>\n\n    <script data-no-optimize=\"1\" src=\"https:\/\/gymbeam.com\/blog\/wp-content\/themes\/wp-gymbeam-blog-theme\/js\/vue\/chunk-vendors.js\"><\/script>\n    <script data-no-optimize=\"1\" src=\"https:\/\/gymbeam.com\/blog\/wp-content\/themes\/wp-gymbeam-blog-theme\/js\/vue\/index.js\"><\/script>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><strong>2. Zv\u00fd\u0161en\u00ed fyzick\u00e9ho a silov\u00e9ho v\u00fdkonu<\/strong><\/p>\n\n\n\n<p>D\u00e1vka 400 a\u017e 600 mg kofeinu je jedn\u00edm&nbsp;z nejspolehliv\u011bj\u0161\u00edch zp\u016fsob\u016f,<strong>&nbsp;jak do\u010dasn\u011b zv\u00fd\u0161it silov\u00fd a fyzick\u00fd&nbsp;v\u00fdkon.<\/strong>&nbsp;Lid\u00e9, kte\u0159\u00ed pouze z\u0159\u00eddka p\u0159ij\u00edmaj\u00ed kofein, mohou zaznamenat v\u00fdrazn\u00e9 zlep\u0161en\u00ed fyzick\u00e9ho v\u00fdkonu&nbsp;<strong>zejm\u00e9na b\u011bhem aerobn\u00edch cvi\u010den\u00ed \u010di silov\u00e9ho tr\u00e9ninku<\/strong>. Kofein m\u016f\u017ee tak\u00e9 hr\u00e1t roli v regeneraci po tr\u00e9ninku.&nbsp;P\u0159ij\u00edm\u00e1n\u00ed&nbsp;kofeinu&nbsp;spolu se sacharidy m\u016f\u017ee zlep\u0161it stav glykemick\u00fdch&nbsp;z\u00e1sob,&nbsp;kter\u00e9 jsou velmi d\u016fle\u017eit\u00e9 p\u0159i regeneraci,&nbsp;zejm\u00e9na pokud cvi\u010d\u00edte pravideln\u011b \u010di v\u00edcekr\u00e1t denn\u011b.<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>Glykogen (z\u00e1sobn\u00ed forma gluk\u00f3zy v t\u011ble)<strong>&nbsp;slou\u017e\u00ed jako hlavn\u00ed palivo pro svalovou hmotu,<\/strong>&nbsp;a pokud nastane jeho sn\u00ed\u017een\u00ed, \u010dlov\u011bk poci\u0165uje \u00fanavu.&nbsp;Druh\u00fdm ,,palivem\u201c v na\u0161em t\u011ble jsou tukov\u00e9 z\u00e1soby. Dokud je glykogen dostupn\u00fd, pracuj\u00edc\u00ed svaly jsou schopny shroma\u017e\u010fovat tuk. Kofein&nbsp;pom\u00e1h\u00e1 mobilizovat tukov\u00e9 z\u00e1soby&nbsp;a usm\u011br\u0148uje svaly, aby vyu\u017eily pr\u00e1v\u011b tuk jako palivo.&nbsp;Po u\u017eit\u00ed kofeinu p\u0159ed tr\u00e9ninkem<strong>&nbsp;je pro glykogen kritick\u00fdch prvn\u00edch 15 minut,<\/strong><strong>&nbsp;kdy se prok\u00e1zalo, \u017ee kofein sn\u00ed\u017eil vyu\u017eit\u00ed glykogenov\u00fdch z\u00e1sob t\u00e9m\u011b\u0159 o 50%.<\/strong>&nbsp;Svalov\u00fd glykogen je tedy dostupn\u00fd jako palivo a\u017e u pozd\u011bj\u0161\u00edch \u010d\u00e1st\u00ed tr\u00e9ninku, co\u017e zvy\u0161uje v\u00fdkon a zabra\u0148uje rychl\u00e9mu n\u00e1stupu \u00fanavy.&nbsp;Kofein tedy preferuje pou\u017eit\u00ed tukov\u00fdch z\u00e1sob jako&nbsp;palivo m\u00edsto glykogenu, co\u017e krom\u011b v\u00fdkonu podpo\u0159\u00ed i spalov\u00e1n\u00ed tuk\u016f. &nbsp; &nbsp;&nbsp;<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/wpstatic.gymbeam.com\/blog\/wp-content\/uploads\/mageblog\/iStock-601902710_1_.jpg\" alt=\"Kofein - Zv\u00fd\u0161en\u00ed fyzick\u00e9ho a silov\u00e9ho v\u00fdkonu\" style=\"width:843px;height:562px\" width=\"843\" height=\"562\" title=\"Kofein - Zv\u00fd\u0161en\u00ed fyzick\u00e9ho a silov\u00e9ho v\u00fdkonu\"\/><\/figure>\n<\/div>\n\n\n<p>Kofein tak\u00e9&nbsp;<strong>napom\u00e1h\u00e1 blokovat&nbsp;specifick\u00e9 receptory v&nbsp;t\u011ble,&nbsp;kter\u00e9 jsou odpov\u011bdn\u00e9 za to, \u017ee se c\u00edt\u00edme unaven\u00ed.&nbsp;<\/strong>Pr\u00e1v\u011b to n\u00e1m dovol\u00ed&nbsp;ud\u011blat v\u00edce opakov\u00e1n\u00ed a p\u0159idat celkovou energii a vytrvalost&nbsp;do tr\u00e9ninku.&nbsp;Ve studii z roku 2012 publikovan\u00e9 v \u010dasopise Journal of Strength and Conditioning Research se zjistilo, \u017ee 180 mg kofeinu, kter\u00fd byl zkonzumov\u00e1n 60 minut p\u0159ed tr\u00e9ninkem,&nbsp;<strong>v\u00fdrazn\u011b zv\u00fd\u0161ilo fyzick\u00fd v\u00fdkon p\u0159i tr\u00e9ninku,&nbsp;co\u017e vedlo k v\u011bt\u0161\u00edmu po\u010dtu opakov\u00e1n\u00ed na bench pressu<\/strong>, p\u0159i mrtv\u00fdch taz\u00edch \u010di d\u0159epech.&nbsp;Skupina suplementovan\u00e1 kofeinem m\u011bla tak\u00e9 sn\u00ed\u017een\u00e9 vn\u00edm\u00e1n\u00ed n\u00e1mahy.&nbsp;Nav\u00edc&nbsp;kofein zlep\u0161il silov\u00fd v\u00fdkon spodn\u00ed \u010d\u00e1sti t\u011bla a tak\u00e9 b\u011b\u017eeck\u00e9&nbsp;v\u00fdkony.&nbsp;<span style=\"color:#ff6600\" class=\"tadv-color\">[5]&nbsp;<\/span><\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><strong>3. Podpora spalov\u00e1n\u00ed tuk\u016f<\/strong><\/p>\n\n\n\n<p>Zn\u00e1me dva hlavn\u00ed d\u016fvody, d\u00edky kter\u00fdm je kofein schopen pomoci se spalov\u00e1n\u00edm tuk\u016f:&nbsp;<strong>termogenn\u00ed efekt<\/strong>&nbsp;(v kr\u00e1tkodob\u00e9m horizontu dok\u00e1\u017ee kofein zv\u00fd\u0161it t\u011blesnou teplotu) a&nbsp;<strong>slab\u0161\u00ed lipolytick\u00fd efekt<\/strong>, kde kofein dok\u00e1\u017ee v dlouhodob\u00e9m horizontu zp\u016fsobit, \u017ee triglyceridy uvol\u0148uj\u00ed mastn\u00e9&nbsp;kyseliny,&nbsp;kter\u00e9 m\u016f\u017ee t\u011blo vyu\u017e\u00edt jako ,,palivo\u201c.&nbsp;Existuje tak\u00e9 n\u011bkolik studi\u00ed, kter\u00e9&nbsp;<strong>poukazuj\u00ed na schopnost kofeinu spalovat tuk b\u011bhem cvi\u010den\u00ed.<\/strong>&nbsp;Kofein&nbsp;stimuluje nervov\u00fd syst\u00e9m a<strong>&nbsp;zvy\u0161uje hladinu hormonu epinefrin,<\/strong>&nbsp;p\u0159i\u010dem\u017e oba t\u011blu signalizuj\u00ed, aby spalovalo tuk.&nbsp;A\u010dkoliv tato schopnost nem\u00e1 p\u0159\u00edmou souvislost se ztr\u00e1tou tuku, kombinace kofeinu, vyv\u00e1\u017een\u00e9 stravy a vhodn\u00e9ho tr\u00e9ninkov\u00e9ho pl\u00e1nu v\u00e1m m\u016f\u017ee pomoci s&nbsp;vypracov\u00e1n\u00edm postavy.&nbsp;<span style=\"color:#ff6600\" class=\"tadv-color\">[6]<\/span><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/wpstatic.gymbeam.com\/blog\/wp-content\/uploads\/mageblog\/iStock-599109418.jpg\" alt=\"Kofein - Podpora spalov\u00e1n\u00ed tuk\u016f\" style=\"width:843px;height:562px\" width=\"843\" height=\"562\" title=\"Kofein - Podpora spalov\u00e1n\u00ed tuk\u016f\"\/><\/figure>\n<\/div>\n\n\n<p>Kofein dok\u00e1\u017ee zv\u00fd\u0161it v\u00fddej&nbsp;takzvan\u00e9 klidov\u00e9&nbsp;energie,<strong>&nbsp;tedy po\u010det kalori\u00ed, kter\u00e9 sp\u00e1l\u00edte v klidu, a\u017e 3 hodiny po jeho konzumaci.&nbsp;<\/strong>Samoz\u0159ejm\u011b to neznamen\u00e1, \u017ee m\u016f\u017eete j\u00edst v\u0161echno, co v\u00e1m p\u0159ijde pod ruku, ale extra 200 a\u017e 300 sp\u00e1len\u00fdch kalori\u00ed&nbsp;ka\u017ed\u00fd den m\u016f\u017ee v\u00e9st k&nbsp;viditeln\u00e9 zm\u011bn\u011b va\u0161\u00ed hmotnosti.<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><strong>4. Sn\u00ed\u017een\u00ed svalov\u00e9 \u00fanavy<\/strong><\/p>\n\n\n\n<p>A\u0165 u\u017e tomu v\u011b\u0159\u00edte nebo ne, studie prok\u00e1zaly, \u017ee kofein<strong>skv\u011ble napom\u00e1h\u00e1 sn\u00ed\u017een\u00ed svalov\u00e9 \u00fanavy,&nbsp;<\/strong>a to prost\u0159ednictv\u00edm sn\u00ed\u017een\u00ed vn\u00edm\u00e1n\u00ed n\u00e1mahy\/bolesti b\u011bhem va\u0161eho tr\u00e9ninku.&nbsp;S&nbsp;men\u0161\u00ed svalovou \u00fanavou pod\u00e1te lep\u0161\u00ed&nbsp;v\u00fdkon,&nbsp;<strong>dokonce provedete i dal\u0161\u00ed extra opakov\u00e1n\u00ed cvik\u016f,<\/strong>&nbsp;na kter\u00e9 byste jinak nem\u011bli energii.&nbsp;V\u00edce opakov\u00e1n\u00ed, v\u00edce odveden\u00e9 pr\u00e1ce a tedy i lep\u0161\u00ed v\u00fdsledky!&nbsp;<span style=\"color:#ff6600\" class=\"tadv-color\">[7]&nbsp;<\/span><\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Kofein a p\u0159edtr\u00e9ninkov\u00e9 stimulanty<\/strong><\/h3>\n\n\n\n<p>Jak je jasn\u00e9 z v\u00fdzkum\u016f, kter\u00e9 jsme zm\u00ednili v\u00fd\u0161e,<strong>ka\u017ed\u00fd \u010dlov\u011bk reaguje na kofein jinak<\/strong>.&nbsp;Je tedy jen na v\u00e1s, jestli se rozhodnete p\u0159ed tr\u00e9ninkem u\u017e\u00edt \u0161\u00e1lek k\u00e1vy, kofeinov\u00e9 tablety, nebo se naopak pos\u00edl\u00edte p\u0159edtr\u00e9ninkov\u00fdm stimulantem.&nbsp;N\u011bkdy se v\u0161ak m\u016f\u017ee st\u00e1t, \u017ee kofein je jednou ze slo\u017eek samotn\u00e9 p\u0159edtr\u00e9ninkovky.&nbsp;Je to zejm\u00e9na kv\u016fli tomu, \u017ee kofein se \u0159ad\u00ed mezi siln\u00e9 psychoaktivn\u00ed stimulanty,&nbsp;kter\u00e9 stimuluj\u00ed centr\u00e1ln\u00ed nervov\u00fd syst\u00e9m.<strong>&nbsp;Pr\u00e1v\u011b jeho vliv na n\u00e1\u0161 nervov\u00fd syst\u00e9m&nbsp;dok\u00e1\u017ee dodat energii, zlep\u0161it koncentraci a odvr\u00e1tit \u00fanavu.<\/strong><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/wpstatic.gymbeam.com\/blog\/wp-content\/uploads\/mageblog\/iStock-874887158.jpg\" alt=\"Kofein a p\u0159edtr\u00e9ninkov\u00e9 stimulanty\" style=\"width:843px;height:562px\" width=\"843\" height=\"562\" title=\"Kofein a p\u0159edtr\u00e9ninkov\u00e9 stimulanty\"\/><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Ma_kofein_i_vedlejsi_ucinky\"><\/span><strong>M\u00e1 kofein i vedlej\u0161\u00ed \u00fa\u010dinky?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>V\u0161eho moc \u0161kod\u00ed, a jinak to nen\u00ed ani u kofeinu.&nbsp;U\u017e\u00edv\u00e1n\u00ed velk\u00e9ho mno\u017estv\u00ed kofeinu m\u016f\u017ee v\u00e9st ke stav\u016fm \u00fazkosti, nervozity, zv\u00fd\u0161en\u00ed krevn\u00edho tlaku \u010di nevolnosti.<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>(De)Hydratace<\/strong><\/h3>\n\n\n\n<p>Bylo prok\u00e1z\u00e1no, \u017ee&nbsp;kofein&nbsp;<strong>vyvol\u00e1v\u00e1 v lidsk\u00e9m t\u011ble&nbsp;m\u00edrn\u00fd diuretick\u00fd&nbsp;\u00fa\u010dinek,<\/strong> kter\u00fd zp\u016fsobuje pocit dehydratace.&nbsp;Nicm\u00e9n\u011b \u00fa\u010dinek je zanedbateln\u00fd.&nbsp;V\u011bdeck\u00fdmi studiemi bylo pouk\u00e1z\u00e1no na fakt, \u017ee kofeinov\u00e9 n\u00e1poje&nbsp;hydratuj\u00ed t\u011blo&nbsp;<strong>stejn\u011b dob\u0159e jako bezkofeinov\u00e9 n\u00e1poje<\/strong>. P\u0159esto je velmi dobr\u00fdm n\u00e1padem zv\u00fd\u0161it p\u0159\u00edjem tekutin p\u0159i konzumaci kofeinu, a to zejm\u00e9na v dob\u011b, kdy tr\u00e9nujete v hork\u00e9m a vlhk\u00e9m prost\u0159ed\u00ed.&nbsp;<span style=\"color:#ff6600\" class=\"tadv-color\">[8]&nbsp;<\/span><\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u00danava<\/strong><\/h3>\n\n\n\n<p>I kdy\u017e jsou mnoz\u00ed z n\u00e1s p\u0159esv\u011bd\u010deni, \u017ee<strong>&nbsp;kofein by n\u00e1s m\u011bl nabudit, jeho vysok\u00e9 mno\u017estv\u00ed m\u016f\u017ee zp\u016fsobit p\u0159esn\u00fd opak.<\/strong>&nbsp;Bylo zji\u0161t\u011bno, \u017ee lid\u00e9,&nbsp;kte\u0159\u00ed p\u0159ij\u00edmali extr\u00e9mn\u011b vysokou d\u00e1vku kofeinu,&nbsp;(1000 mg\/den)&nbsp;byli v\u00edce nerv\u00f3zn\u00ed, unaven\u00ed a pod stresem.&nbsp;Takov\u00e9 projevy v\u0161ak mohou poci\u0165ovat i lid\u00e9, kte\u0159\u00ed kofein \u010dasto neu\u017e\u00edvaj\u00ed.&nbsp;Jedna ze studi\u00ed testovala 25 zdrav\u00fdch mu\u017e\u016f, p\u0159i\u010dem\u017e ti, kte\u0159\u00ed p\u0159ijali&nbsp;v\u00edce ne\u017e 300 mg kofeinu za den&nbsp;uvedli, \u017ee&nbsp;<strong>poci\u0165ovali mnohem v\u011bt\u0161\u00ed stres ne\u017e mu\u017ei, kte\u0159\u00ed u\u017e\u00edvali placebo<\/strong>.&nbsp;Pom\u011br kofeinu se v\u0161ak li\u0161\u00ed od k\u00e1vy ke k\u00e1v\u011b. Nap\u0159\u00edklad jedna velk\u00e1 k\u00e1va ( ,,grande\u201c) ve Starbucks obsahuje okolo 330 mg kofeinu.&nbsp;<span style=\"color:#ff6600\" class=\"tadv-color\">[9]&nbsp;<\/span>&nbsp; &nbsp;&nbsp;<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/wpstatic.gymbeam.com\/blog\/wp-content\/uploads\/mageblog\/iStock-831540570.jpg\" alt=\"Kofein - vedlej\u0161\u00ed \u00fa\u010dinky\" style=\"width:843px;height:562px\" width=\"843\" height=\"562\" title=\"Kofein - vedlej\u0161\u00ed \u00fa\u010dinky\"\/><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\"><strong>Z\u00e1vislost<\/strong><\/h3>\n\n\n\n<p>Je obecn\u011b zn\u00e1mo, \u017ee kofein je n\u00e1vykov\u00e1 l\u00e1tka. <strong>K z\u00e1vislosti m\u016f\u017ee&nbsp;doj\u00edt,&nbsp;pokud za den u\u017eijete v\u00edce ne\u017e 200 mg.<\/strong>&nbsp;B\u011bhem dne v\u00e1s mohou doprov\u00e1zet r\u016fzn\u00e9 symptomy, kter\u00e9 trvaj\u00ed pr\u016fm\u011brn\u011b 2 a\u017e 9 dn\u00ed, a projevuj\u00ed se bolestmi hlavy, \u00fazkost\u00ed,&nbsp;depres\u00ed,&nbsp;\u010di r\u016fzn\u00fdmi chut\u011bmi na v\u0161echno j\u00eddlo, kter\u00e9 vid\u00edte.&nbsp;Tyto vedlej\u0161\u00ed \u00fa\u010dinky m\u016f\u017eete zm\u00edrnit t\u00edm, \u017ee budete&nbsp;sni\u017eovat sv\u00e9 d\u00e1vky na po\u017eadovan\u00e9&nbsp;mno\u017estv\u00ed.&nbsp;Ve spojen\u00ed se z\u00e1vislost\u00ed byla provedena studie s 213 \u00fa\u010dastn\u00edky, kte\u0159\u00ed u\u017e\u00edvali kofein a vyplnili dotazn\u00edk po 16 hodin\u00e1ch bez&nbsp;kofeinu.&nbsp;Na z\u00e1klad\u011b v\u00fdsledk\u016f dotazn\u00edku bylo prok\u00e1z\u00e1no, \u017ee&nbsp;<strong>lid\u00e9, kte\u0159\u00ed p\u0159ij\u00edmaj\u00ed kofein na denn\u00ed b\u00e1zi, m\u011bli&nbsp;bolesti hlavy a poci\u0165ovali \u00fanavu<\/strong>.&nbsp;<span style=\"color:#ff6600\" class=\"tadv-color\">[10]<\/span><\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Zv\u00fd\u0161en\u00fd krevn\u00ed tlak a bu\u0161en\u00ed srdce<\/strong><\/h3>\n\n\n\n<p>V prvn\u00ed \u0159ad\u011b je pot\u0159eba podotknout, \u017ee&nbsp;<strong>tyto negativn\u00ed symptomy&nbsp;jsou individu\u00e1ln\u00ed pro ka\u017ed\u00e9ho \u010dlov\u011bka.<\/strong>&nbsp;Studie zam\u011b\u0159en\u00e1 na \u00fa\u010dinky kofeinu na srdce odhalila, \u017ee vysok\u00e9 d\u00e1vky kofeinu mohou zp\u016fsobit zrychlen\u00fd tep a bu\u0161en\u00ed srdce.&nbsp;Nicm\u00e9n\u011b p\u0159i studii, kter\u00e9 se z\u00fa\u010dastnilo 51 lid\u00ed se srde\u010dn\u00edmi probl\u00e9my, nebyly ani po p\u0159ijet\u00ed 100 mg kofeinu po dobu 5 hodin zji\u0161t\u011bny \u017e\u00e1dn\u00e9 negativn\u00ed&nbsp;\u00fa\u010dinky.&nbsp;St\u00e1le v\u0161ak plat\u00ed, \u017ee pokud sami na sob\u011b c\u00edt\u00edte,&nbsp;\u017ee&nbsp;<strong>kofein ovliv\u0148uje v\u00e1\u0161 organismus \u010di srdce&nbsp;negativn\u011b,&nbsp;m\u011bli byste uva\u017eovat o sn\u00ed\u017een\u00ed denn\u00ed d\u00e1vky.&nbsp;<\/strong><span style=\"color:#ff6600\" class=\"tadv-color\">[11]<\/span><\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Jake_jsou_nejoblibenejsi_zdroje_kofeinu\"><\/span><strong>Jak\u00e9 jsou nejobl\u00edben\u011bj\u0161\u00ed zdroje kofeinu?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u0160\u00e1lek k\u00e1vy, \u010daj \u010di dokonce kofeinov\u00e9 tablety.&nbsp;I to jsou zp\u016fsoby, jak p\u0159ijmout&nbsp;kofein. Poj\u010fme se pod\u00edvat na&nbsp;<strong>nejobl\u00edben\u011bj\u0161\u00ed zdroje kofeinu spole\u010dn\u011b s jejich plusy a m\u00ednusy.&nbsp;<\/strong><\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><strong>K\u00e1va<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>P\u0159ekap\u00e1van\u00e1&nbsp;k\u00e1va:&nbsp;60-180 mg na 170 ml<\/li>\n\n\n\n<li>Espresso:&nbsp;70-80 mg na 44 ml<\/li>\n\n\n\n<li>Bez&nbsp;kofeinu:&nbsp;2-5 mg na 170 ml<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/wpstatic.gymbeam.com\/blog\/wp-content\/uploads\/mageblog\/iStock-595113104.jpg\" alt=\"Kofein - k\u00e1va \" style=\"width:843px;height:562px\" width=\"843\" height=\"562\" title=\"Kofein - k\u00e1va \"\/><\/figure>\n<\/div>\n\n\n<p>Kdo by nemiloval v\u016fni \u010derstv\u011b namlet\u00e9 k\u00e1vy.&nbsp;<strong>Tato forma p\u0159ij\u00edm\u00e1n\u00ed kofeinu se bezpochyby m\u016f\u017ee za\u0159adit na prvn\u00ed&nbsp;m\u00edsto.<\/strong>&nbsp;Sv\u011bd\u010d\u00ed o tom i fakt, \u017ee mnoho sportovc\u016f v&nbsp;sou\u010dasnosti up\u0159ednost\u0148uje \u0161\u00e1lek k\u00e1vy p\u0159ed&nbsp;p\u0159edtr\u00e9ninkov\u00fdm stimulantem.&nbsp;Nejv\u011bt\u0161\u00ed v\u00fdhodou je rychl\u00e1 p\u0159\u00edprava a \u0161irok\u00fd v\u00fdb\u011br druh\u016f k\u00e1v.&nbsp;Nem\u011bli byste v\u0161ak zapom\u00ednat na to, \u017ee v\u0161eho moc \u0161kod\u00ed, a proto to&nbsp;ani s va\u0161\u00ed obl\u00edbenou k\u00e1vou nen\u00ed pot\u0159eba p\u0159eh\u00e1n\u011bt.&nbsp;<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><strong>K\u00e1va v&nbsp;plechovce\/v l\u00e1hvi<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>70-180 mg na 220 ml&nbsp; &nbsp;<\/li>\n<\/ul>\n\n\n\n<p>\u0160iroce dostupn\u00fd produkt, <strong>obvykle s p\u0159idan\u00fdmi proteiny v podob\u011b ml\u00e9ka s&nbsp;k\u00e1vovou aroma\/p\u0159\u00edchut\u00ed.<\/strong> U t\u011bchto produkt\u016f je v\u0161ak velmi d\u016fle\u017eit\u00e9 db\u00e1t na nutri\u010dn\u00ed hodnoty, proto\u017ee mnoho z nich&nbsp;<strong>obsahuje extr\u00e9mn\u00ed d\u00e1vky cukru<\/strong>, co\u017e v\u00e1\u0161 organismus jist\u011b nepot\u011b\u0161\u00ed.<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><strong>Energetick\u00e9 n\u00e1poje<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>75-120 mg na 230 ml&nbsp;<\/li>\n<\/ul>\n\n\n\n<p>Energetick\u00e9 n\u00e1poje jsou pro t\u011blo vhodn\u00e9,<strong>&nbsp;av\u0161ak obsahuj\u00ed velk\u00e9 mno\u017estv\u00ed cukru,<\/strong>&nbsp;pokud nejde o jejich&nbsp;<em><strong>,,sugar-free\u201c&nbsp;verze<\/strong><\/em>, kter\u00e9 jsou st\u00e1le v\u00edce a v\u00edce dostupn\u00e9.&nbsp;I zde v\u0161ak plat\u00ed, \u017ee byste to s energetick\u00fdmi n\u00e1poji nem\u011bli p\u0159eh\u00e1n\u011bt.<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><strong>\u010caj<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>40-80 mg na 150 ml<\/li>\n<\/ul>\n\n\n\n<p>Co se t\u00fd\u010de obsahu kofeinu v \u010daji,&nbsp;ten se<strong>&nbsp;zna\u010dn\u011b li\u0161\u00ed v z\u00e1vislosti na druhu \u010daje.<\/strong>&nbsp;Je v\u0161ak zn\u00e1mo, \u017ee \u010dern\u00fd \u010daj obvykle obsahuje v\u00edce kofeinu ne\u017e zelen\u00fd \u010daj.<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><strong>R\u016fzn\u00e9 energy gely<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>30-100 mg na gel&nbsp;&nbsp;<\/li>\n<\/ul>\n\n\n\n<p>Energy gely jsou ur\u010deny&nbsp;zejm\u00e9na pro vytrvalostn\u00ed sportovce,&nbsp;kte\u0159\u00ed&nbsp;<strong>vykon\u00e1vaj\u00ed t\u011b\u017ekou fyzickou aktivitu.&nbsp;<\/strong>Nen\u00ed v\u0161ak pravidlem, \u017ee v\u0161echny gely obsahuj\u00ed kofein.&nbsp;Ty, kter\u00e9 ho obsahuj\u00ed, maj\u00ed za \u00fakol&nbsp;<strong>podpo\u0159it n\u00edzkou hladinu cukru v krvi sportovc\u016f.<\/strong>&nbsp;U energy gel\u016f je nutn\u00e1 konzumace s velk\u00fdm mno\u017estv\u00edm vody, kv\u016fli lep\u0161\u00ed vst\u0159ebatelnosti gelu.<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><strong>Kofeinov\u00e9 tablety<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>100-200 mg na tabletu&nbsp;&nbsp;<\/li>\n<\/ul>\n\n\n\n<p>Kofeinov\u00e9 tablety jsou<strong>&nbsp;jedn\u00edm&nbsp;z nejefektivn\u011bj\u0161\u00edch zp\u016fsob\u016f<\/strong>, jak p\u0159ijmout kofein, ani\u017e byste museli zji\u0161\u0165ovat,&nbsp;<strong>jestli opravdu p\u0159ijmete po\u017eadovanou d\u00e1vku&nbsp;bez ostatn\u00edch zbyte\u010dn\u00fdch l\u00e1tek.<\/strong> Nev\u00fdhodou v\u0161ak je, \u017ee 1 siln\u011bj\u0161\u00ed tableta m\u016f\u017ee vyvolat nervozitu \u010di dal\u0161\u00ed ne\u017e\u00e1douc\u00ed \u00fa\u010dinky. Pr\u00e1v\u011b proto je pot\u0159eba za\u010d\u00edt s n\u00edzk\u00fdmi d\u00e1vkami, aby si va\u0161e t\u011blo pomalu na kofein navyklo.&nbsp;<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><strong>Extrakt ze zelen\u00e9ho \u010daje<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>nezji\u0161t\u011bn\u00fd obsah kofeinu<\/li>\n<\/ul>\n\n\n\n<p>A\u010dkoliv \u00fadaje ukazuj\u00ed, \u017ee&nbsp;zelen\u00fd \u010daj ovliv\u0148uje&nbsp;metabolismus,&nbsp;<strong>v\u011bt\u0161ina v\u00fdrobc\u016f neuv\u00e1d\u00ed p\u0159esn\u00fd obsah kofeinu v tomto spalova\u010di tuku.<\/strong><\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><strong>BCAA Energy drinky<\/strong><\/p>\n\n\n\n<p>BCAA Energy drinky se v posledn\u00ed dob\u011b t\u011b\u0161\u00ed velk\u00e9 popularit\u011b,<strong>&nbsp;a to zejm\u00e9na kv\u016fli&nbsp;chuti p\u0159ipom\u00ednaj\u00edc\u00ed energetick\u00fd n\u00e1poj a schopnost\u00ed poskytnout energii a regeneraci v&nbsp;jednom<\/strong>. Jednou ze slo\u017eek BCAA energy drink\u016f je pr\u00e1v\u011b kofein, kter\u00fd se postar\u00e1&nbsp;o dlouhodob\u00e9 dod\u00e1n\u00ed energie.&nbsp;Mimochodem, vyzkou\u0161eli jste u\u017e n\u00e1\u0161 nov\u00fd&nbsp;<a href=\"https:\/\/gymbeam.cz\/bcaa\" class=\"ek-link\">BCAA<\/a> Energy drink v plechovce?&nbsp;&nbsp;<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/gymbeam.cz\/blog\/wp-content\/uploads\/2018\/08\/WhatsApp-I-_-1124x749.jpeg\" alt=\"BCAA Energy drink v plechovce GymBeam\" class=\"wp-image-330125\" style=\"width:843px;height:562px\" width=\"843\" height=\"562\" title=\"BCAA Energy drink v plechovce GymBeam\" srcset=\"https:\/\/gymbeam.com\/blog\/wp-content\/uploads\/2018\/08\/WhatsApp-I-_-1124x749.jpeg 1124w, https:\/\/gymbeam.com\/blog\/wp-content\/uploads\/2018\/08\/WhatsApp-I-_-400x267.jpeg 400w, https:\/\/gymbeam.com\/blog\/wp-content\/uploads\/2018\/08\/WhatsApp-I-_-1536x1023.jpeg 1536w, https:\/\/gymbeam.com\/blog\/wp-content\/uploads\/2018\/08\/WhatsApp-I-_.jpeg 1600w\" sizes=\"auto, (max-width: 843px) 100vw, 843px\" \/><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Nejcastejsi_otazky_spojene_s_kofeinem\"><\/span><strong>Nej\u010dast\u011bj\u0161\u00ed ot\u00e1zky spojen\u00e9 s kofeinem<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>1. Sni\u017euje kofein \u00fa\u010dinky&nbsp;kreatinu?<\/strong><\/h3>\n\n\n\n<p>P\u0159i aerobn\u00edm cvi\u010den\u00ed \u010di&nbsp;<a href=\"https:\/\/gymbeam.cz\/blog\/6-duvodu-proc-zkusit-vysoce-intenzivni-intervalovy-trenink-hiit-a-jeho-treninkovy-plan\/\" target=\"_blank\" rel=\"noreferrer noopener\" class=\"ek-link\">HIIT tr\u00e9ninku<\/a>&nbsp;nebylo prok\u00e1z\u00e1no, \u017ee kofein negativn\u011b ovliv\u0148uje \u00fa\u010dinky <a href=\"https:\/\/gymbeam.cz\/kreatin\" class=\"ek-link\">kreatinu<\/a>.&nbsp;Pr\u00e1v\u011b naopak, kofein se uk\u00e1zal jako prosp\u011b\u0161n\u00fd pro celkov\u00fd v\u00fdsledek tr\u00e9ninku.<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>2. Pot\u0159ebuji p\u0159ij\u00edmat kofein pravideln\u011b?<\/strong><\/h3>\n\n\n\n<p>Existuj\u00ed ur\u010dit\u00e9 v\u00fdhody spojen\u00e9&nbsp;<strong>s pravideln\u00fdm p\u0159ij\u00edm\u00e1n\u00edm kofeinu a tak\u00e9 existuj\u00ed benefity<\/strong><strong>&nbsp;z jeho p\u0159\u00edle\u017eitostn\u00e9ho u\u017e\u00edv\u00e1n\u00ed.<\/strong>&nbsp;Je to tedy pouze na va\u0161ich preferenc\u00edch a toleranci kofeinu.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/wpstatic.gymbeam.com\/blog\/wp-content\/uploads\/mageblog\/caffeine1.png\" alt=\" kolik kofeinu (mg) obsahuj\u00ed popul\u00e1rn\u00ed n\u00e1poje,\"\/><figcaption class=\"wp-element-caption\"><em><strong><a href=\"https:\/\/a99d9b858c7df59c454c-96c6baa7fa2a34c80f17051de799bc8e.ssl.cf1.rackcdn.com\/images\/caffeine1.png\" target=\"_blank\" rel=\"noreferrer noopener\" class=\"ek-link\">prevzato z examine.com<\/a><\/strong><\/em><\/figcaption><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h3 class=\"wp-block-heading\"><strong>3. Jsou pro n\u00e1s energetick\u00e9 drinky \u0161kodliv\u00e9?<\/strong><\/h3>\n\n\n\n<p>P\u0159\u00edpadov\u00e9 studie pouk\u00e1zaly na to, \u017ee&nbsp;<strong>energetick\u00e9 n\u00e1poje mohou m\u00edt nep\u0159\u00edzniv\u00fd vliv zejm\u00e9na na n\u00e1\u0161 kardiovaskul\u00e1rn\u00ed syst\u00e9m.<\/strong>&nbsp;Av\u0161ak z celkov\u00e9ho hlediska, pokud p\u0159ij\u00edm\u00e1te pouze doporu\u010denou denn\u00ed&nbsp;d\u00e1vku,&nbsp;energetick\u00e9 n\u00e1poje neprokazuj\u00ed \u017e\u00e1dn\u00e9 negativn\u00ed vlivy na organismus. Mus\u00edme v\u0161ak poznamenat, \u017ee ve v\u011bt\u0161in\u011b energetick\u00fdch n\u00e1poj\u016f p\u0159ij\u00edm\u00e1te spole\u010dn\u011b s kofeinem i mno\u017estv\u00ed cukru.&nbsp;Proto si v\u017edy&nbsp;<strong>krom\u011b slo\u017een\u00ed zkontrolujte i nutri\u010dn\u00ed hodnoty n\u00e1poje,<\/strong>&nbsp;nebo zvolte verzi bez cukru.<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>4. Jak kofein pracuje v na\u0161em mozku?<\/strong><\/h3>\n\n\n\n<p>B\u011bhem dne za\u010dnete b\u00fdt unaven\u00ed kv\u016fli tomu,&nbsp;<strong>\u017ee se&nbsp;<\/strong><strong>adenosin spoj\u00ed s takzvan\u00fdm receptorem A1 ve va\u0161em&nbsp;mozku<\/strong>.&nbsp;Kofein br\u00e1n\u00ed tomu,&nbsp;<strong>aby se adenosin p\u0159ipojil k tomuto receptoru<\/strong>, co\u017e pom\u016f\u017ee bojovat proti \u00fanav\u011b.<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>5. Jak\u00e1 je bezpe\u010dn\u00e1 d\u00e1vka kofeinu?<\/strong><\/h3>\n\n\n\n<p>Bezpe\u010dn\u00e1 d\u00e1vka kofeinu je velmi relativn\u00ed pojem, proto\u017ee z\u00e1vis\u00ed na mnoha faktorech, stejn\u011b tak i na va\u0161em zdrav\u00ed.<strong>&nbsp;U n\u011bkter\u00fdch lid\u00ed se neprojev\u00ed \u017e\u00e1dn\u00e9 negativn\u00ed symptomy po u\u017eit\u00ed n\u011bkolika \u0161\u00e1lk\u016f k\u00e1vy za den<\/strong>. Naopak jin\u00fdm posta\u010d\u00ed jeden \u0161\u00e1lek k\u00e1vy na to, aby se jejich krevn\u00ed tlak&nbsp;rapidn\u011b zv\u00fd\u0161il, m\u011bli zhor\u0161en\u00fd sp\u00e1nek, bolesti hlavy \u010di poci\u0165ovali nervozitu a \u00fanavu. Pro dosp\u011bl\u00e9 lidi se pova\u017euje <strong>za bezpe\u010dnou d\u00e1vku kofeinu 400 mg za&nbsp;den.<\/strong> T\u011bhotn\u00e9 nebo koj\u00edc\u00ed \u017eeny by&nbsp;<strong>nem\u011bly konzumovat v\u00edce ne\u017e 200 mg\/den.<\/strong>&nbsp;Lid\u00e9 s&nbsp;kardiovaskul\u00e1rn\u00edmi probl\u00e9my by m\u011bli udr\u017eovat d\u00e1vky kofeinu na minimu.&nbsp;<span style=\"color:#ff6600\" class=\"tadv-color\">[12]&nbsp;&nbsp;&nbsp;<\/span><\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>Na tomto obr\u00e1zku je zn\u00e1zorn\u011bno, kolik kofeinu (mg) obsahuj\u00ed popul\u00e1rn\u00ed n\u00e1poje, kter\u00e9 b\u011b\u017en\u011b konzumujeme.&nbsp;Nejv\u00edce, a to 280 mg kofeinu, obsahuje energetick\u00fd n\u00e1poj JOLT,&nbsp;<strong>p\u0159i\u010dem\u017e \u0161\u00e1lek mlet\u00e9 k\u00e1vy obsahuje cca 163 mg kofeinu.<\/strong><\/p>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"_Kolik_napoju_musime_vypit_abychom_dosahli_doporucene_400_mg_hranice_prijmu_kofeinu\"><\/span><em><strong>&nbsp;<\/strong><\/em><strong>Kolik n\u00e1poj\u016f mus\u00edme vyp\u00edt, abychom dos\u00e1hli doporu\u010den\u00e9 400 mg hranice p\u0159\u00edjmu kofeinu?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/wpstatic.gymbeam.com\/blog\/wp-content\/uploads\/mageblog\/caffeine2.png\" alt=\"Kolik n\u00e1poj\u016f mus\u00edme vyp\u00edt, abychom dos\u00e1hli doporu\u010den\u00e9 400 mg hranice p\u0159\u00edjmu kofeinu?\"\/><figcaption class=\"wp-element-caption\"><a href=\"https:\/\/a99d9b858c7df59c454c-96c6baa7fa2a34c80f17051de799bc8e.ssl.cf1.rackcdn.com\/images\/caffeine2.png\" target=\"_blank\" rel=\"noreferrer noopener\" class=\"ek-link\"><em><strong>p\u0159evzato z examine.co<\/strong><\/em><\/a>m<\/figcaption><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>Na tomto obr\u00e1zku je n\u00e1zorn\u011b zakresleno,&nbsp;kolik energetick\u00fdch drink\u016f, k\u00e1vy, \u010dern\u00e9ho \u010di zelen\u00e9ho \u010daje&nbsp;byste museli vyp\u00edt na to, abyste dos\u00e1hli denn\u00ed d\u00e1vky kofeinu,&nbsp;<strong>tedy 400 mg.<\/strong><\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Jak_uzivat_kofein\"><\/span><strong>Jak u\u017e\u00edvat kofein?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Pokud chcete zv\u00fd\u0161it sv\u016fj sportovn\u00ed v\u00fdkon, je tu p\u00e1r bod\u016f, kter\u00e9 byste nem\u011bli p\u0159ehl\u00e9dnout.<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>D\u00e1vkov\u00e1n\u00ed<\/strong><\/h3>\n\n\n\n<p>\u00da\u010dinky kofeinu m\u016f\u017eete poci\u0165ovat&nbsp;u\u017e p\u0159i 20 mg&nbsp;(0,3 mg\/kg va\u0161\u00ed t\u011blesn\u00e9 v\u00e1hy).<strong>&nbsp;Pokud jste nikdy p\u0159edt\u00edm kofein neu\u017e\u00edvali, za\u010dn\u011bte s nejni\u017e\u0161\u00ed d\u00e1vkou.&nbsp;<\/strong>Mnoho lid\u00ed konzumuje velk\u00e9 mno\u017estv\u00ed kofeinu, ani\u017e by si uv\u011bdomovali jeho&nbsp;siln\u00fdch d\u016fsledk\u016f na&nbsp;metabolismus.&nbsp;<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>Pokud r\u00e1no vypijete \u0161\u00e1lek k\u00e1vy s obsahem 100 mg kofeinu, 150 mg ve spalova\u010di tuk\u016f (s obsahem kofeinu) a 200 mg p\u0159ed tr\u00e9ninkem,<strong>&nbsp;je to mno\u017estv\u00ed kofeinu, p\u0159i kter\u00e9m se mohou projevit p\u0159\u00edznaky jako&nbsp;t\u0159es, \u00fazkosti, nervozita \u010di bu\u0161en\u00ed srdce<\/strong>.&nbsp;Proto je pot\u0159eba d\u00e1vku sn\u00ed\u017eit a p\u0159izp\u016fsobit ji sv\u00e9mu t\u011blu, t\u011blesn\u00e9mu v\u00fdkonu \u010di zdatnosti.&nbsp;<span style=\"color:#ff6600\" class=\"tadv-color\">[13]<\/span><\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Na\u010dasov\u00e1n\u00ed<\/strong><\/h3>\n\n\n\n<p>Hladinu kofeinu v&nbsp;krvi zv\u00fd\u0161\u00edte 60 a\u017e 90 minut po konzumaci.&nbsp;<strong>Z toho d\u016fvodu byste ho m\u011bli u\u017e\u00edvat 1 a\u017e 2 hodiny p\u0159ed&nbsp;tr\u00e9ninkem<\/strong>.&nbsp;Pamatujte si, \u017ee kofein m\u00e1 pom\u011brn\u011b dlouh\u00e9 p\u016fsoben\u00ed, p\u0159ibli\u017en\u011b 6 hodin, co\u017e znamen\u00e1, \u017ee pokud p\u0159ijmete 200 mg tablety b\u011bhem 18 hodin, budete je\u0161t\u011b polovinu t\u00e9to d\u00e1vky c\u00edtit v t\u011ble p\u0159ibli\u017en\u011b do p\u016flnoci.&nbsp;<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>M\u016f\u017ee to m\u00edt&nbsp;neblah\u00fd vliv na v\u00e1\u0161 pravideln\u00fd sp\u00e1nkov\u00fd&nbsp;cyklus.&nbsp;Tak\u00e9 byste m\u011bli b\u00fdt s kofeinem velmi opatrn\u00ed, pokud m\u00e1te probl\u00e9my se srdcem, respektive trp\u00edte onemocn\u011bn\u00edm srdce.&nbsp;<span style=\"color:#ff6600\" class=\"tadv-color\">[14]&nbsp;&nbsp;<\/span><\/p>\n<\/div>\n<\/div>\n\n\n\n<p>V jak\u00e9 form\u011b p\u0159ij\u00edm\u00e1te kofein vy?&nbsp;Je podle v\u00e1s lep\u0161\u00ed ne\u017e p\u0159edtr\u00e9ninkov\u00fd stimulant?&nbsp;Napi\u0161te n\u00e1m va\u0161i odpov\u011b\u010f do koment\u00e1\u0159e a v p\u0159\u00edpad\u011b, \u017ee se v\u00e1m \u010dl\u00e1nek l\u00edbil,&nbsp;podpo\u0159te ho sd\u00edlen\u00edm.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><a href=\"https:\/\/gymbeam.com\/fat-burners\" target=\"_blank\" class=\"category-button\">\n\t<span class=\"label\">\n\t\tFat Burners\t<\/span>\n\t<svg class=\"icon-cart\" focusable=\"false\">\n\t\t<use xlink:href=\"#icon-cart\"><\/use>\n\t<\/svg>\n<\/a><\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><a href=\"https:\/\/gymbeam.com\/caffeine\" target=\"_blank\" class=\"category-button\">\n\t<span class=\"label\">\n\t\tCaffeine\t<\/span>\n\t<svg class=\"icon-cart\" focusable=\"false\">\n\t\t<use xlink:href=\"#icon-cart\"><\/use>\n\t<\/svg>\n<\/a><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Kofein je siln\u00fd stimulant, \u017eivotabudi\u010d a \u010dasto nahrazuje p\u0159edtr\u00e9ninkov\u00fd stimulant u sportovc\u016f. Prozrad\u00edme v\u00e1m, jak si j\u00edm zefektivn\u00edte tr\u00e9nink na maximum!<\/p>\n","protected":false},"author":25,"featured_media":140771,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_editorskit_title_hidden":false,"_editorskit_reading_time":11,"_editorskit_is_block_options_detached":false,"_editorskit_block_options_position":"{}","footnotes":""},"categories":[33],"tags":[6501,6369,6729,7479],"filter_section":[],"filter_attribute":[],"class_list":{"0":"post-168003","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-doplnky-vyzivy","8":"tag-doplnky-vyzivy-cs","9":"tag-hubnuti","10":"tag-kofein-cs","11":"tag-trenink","12":"h-entry","13":"hentry"},"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Kofein a jak j\u00edm zefektivn\u00edte sv\u016fj tr\u00e9nink - GymBeam Blog<\/title>\n<meta name=\"description\" content=\"Sportovci \u010dasto vyu\u017e\u00edvaj\u00ed kofein jako p\u0159edtr\u00e9ninkov\u00fd stimulant. 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