Caffeine effects on VO 2max test outcomes investigated by a placebo perceived-as-caffeine design.
Autor: | Brietzke C; 1 Exercise Psychophysiology Research Group, School of Arts, Sciences and Humanities, University of São Paulo, Brazil., Asano RY; 1 Exercise Psychophysiology Research Group, School of Arts, Sciences and Humanities, University of São Paulo, Brazil., De Russi de Lima F; 1 Exercise Psychophysiology Research Group, School of Arts, Sciences and Humanities, University of São Paulo, Brazil., Pinheiro FA; 1 Exercise Psychophysiology Research Group, School of Arts, Sciences and Humanities, University of São Paulo, Brazil.; 2 School of Physical Education and Sport, University of São Paulo, Brazil., Franco-Alvarenga; 1 Exercise Psychophysiology Research Group, School of Arts, Sciences and Humanities, University of São Paulo, Brazil., Ugrinowitsch C; 2 School of Physical Education and Sport, University of São Paulo, Brazil., Pires FO; 1 Exercise Psychophysiology Research Group, School of Arts, Sciences and Humanities, University of São Paulo, Brazil. |
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Jazyk: | angličtina |
Zdroj: | Nutrition and health [Nutr Health] 2017 Dec; Vol. 23 (4), pp. 231-238. |
DOI: | 10.1177/0260106017723547 |
Abstrakt: | Background: Ergogenic effects of caffeine (CAF) ingestion have been observed in different cycling exercise modes, and have been associated with alterations in ratings of perceived exertion (RPE). However, there has been little investigation of maximal oxygen uptake (VO Aim: This study aimed to verify whether CAF may reduce RPE, thereby improving maximal incremental test (MIT) outcomes such as VO Methods: Nine healthy individuals performed three MITs (25 W/min until exhaustion) in a random, counterbalanced fashion after ingestion of CAF, placebo perceived as caffeine (PLA), and no supplementation (baseline control). VO Results: VO Conclusions: Compared with control, CAF and PLA improved MIT performance outcomes such as time to exhaustion and W |
Databáze: | MEDLINE |
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