منابع مشابه
Health and ergogenic effects of caffeine.
The indiscriminate use of caffeine by people of all ages may present health hazards. The public at large needs to be more informed of the presence of caffeine in commonly consumed foods and beverages, particularly by infants, children and pregnant women. It is the responsibility of all consumers to investigate the caffeine content of suspected products so that intake may be objectively monitore...
متن کاملErgogenic effects of low doses of caffeine on cycling performance.
The purpose of this experiment was to learn whether low doses of caffeine have ergogenic, perceptual, and metabolic effects during cycling. To determine the effects of 1, 2, and 3 mg/kg caffeine on cycling performance, differentiated ratings of perceived exertion (D-RPE), quadriceps pain intensity, and metabolic responses to cycling exercise, 13 cyclists exercised on a stationary ergometer for ...
متن کاملERGOGENIC AIDS Ergogenic Effects of Sodium Bicarbonate
MCNAUGHTON, L.R., J. SIEGLER, and A. MIDGLEY. Ergogenic effects of sodium bicarbonate. Curr. Sports Med. Rep., Vol. 7, No. 4, pp. 230—236, 2008. Athletes use many different strategies to enhance their performance, including clothing and footwear, training regimes, diets, and ergogenic aids. The use of ergogenic aids is believed to be widespread, with a variety of legal as well as illegal substa...
متن کاملLikely Additive Ergogenic Effects of Combined Preexercise Dietary Nitrate and Caffeine Ingestion in Trained Cyclists
Aims. To evaluate the possible additive effects of beetroot juice plus caffeine on exercise performance. Methods. In a randomized, double-blinded study design, fourteen healthy well-trained men aged 22 ± 3 years performed four trials on different occasions following preexercise ingestion of placebo (PLA), PLA plus 5 mg/kg caffeine (PLA+C), beetroot juice providing 8 mmol of nitrate (BR), and be...
متن کاملThe influence of a CYP1A2 polymorphism on the ergogenic effects of caffeine
BACKGROUND Although caffeine supplementation improves performance, the ergogenic effect is variable. The cause(s) of this variability are unknown. A (C/A) single nucleotide polymorphism at intron 1 of the cytochrome P450 (CYP1A2) gene influences caffeine metabolism and clinical outcomes from caffeine ingestion. The purpose of this study was to determine if this polymorphism influences the ergog...
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ژورنال
عنوان ژورنال: British Journal of Sports Medicine
سال: 1989
ISSN: 0306-3674
DOI: 10.1136/bjsm.23.1.34