Effects of caffeine, L-carnitine and their combination on 400-m freestyle performance in female swimmers
Paper Details
Effects of caffeine, L-carnitine and their combination on 400-m freestyle performance in female swimmers
Abstract
This study is aimed to examine the effect of caffeine ,L- carnitine, and their combination on lactate blood level, and exercise time during a 400 m freestyle swimming trial. 16 adolescent female freestyle swimmers were randomly divided into 4 groups; caffeine (3mg/kg), carnitine (1.5g), caffeine + carnitine (3 mg/kg + 1.5 g), and placebo. Supplements were consumed on 4 separate occasions before completing maximal 400-m freestyle trial. In each of the trials, Supplements were consumed 30 min prior to testing by Applying a single blind experimental design then the Statistical analysis was carried out on the relevant data using anova test. No significant differences (p =0 .05) were observed for performance in all groups whereas blood blood lactate concentration values in min 1 were lower in the caffeine trials compare to other groups. These findings showing that consuming 3mg/kg caffeine ,1.5 g L-carnitine and their combination has no meaningful effect on performance.
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Mitra Azizimasouleh, Kobra Sharifi, Sahar Razmjoo, Pezhman Ahmadi (2014), Effects of caffeine, L-carnitine and their combination on 400-m freestyle performance in female swimmers; IJB, V5, N9, November, P1-8
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