Authors
Abstract
The aim of this research was to determine the effects of carbohydrate and branched chain amino acid supplements consumption in recovery period on secretion of insulin and preserving the performance of wrestlers. For this purpose, 21 wrestlers in Zanjan team (mean age: 20.07?1.93 years, height: 171?5.37 cm, weight: 65.38?6.39 kg, VO2max: 65.73?3.94 ml/kg/min and insulin before Bruce test: 14.13?1.16 ?u/ml) voluntarily took part in this study. After a standardized breakfast at 7:30 A.M., the wrestlers performed Bruce test at 9 A.M. The control group consumed a solution with the volume of 6ml/kg/BW consisting of lemon and salt in the recovery period. The CHO+BCAAs group consumed the 8% glucose solution with the volume of 6ml/kg/BW in addition to 45ml/kg/BW of each of leucine, isoleucine and valine. The CHO group ingested the 8% glucose solution with the volume of 6ml/kg/BW in the recovery period. To investigate the effects of consumption of supplements on insulin secretion, blood samples were collected before and immediately after the first Bruce test and 30 minutes after supplement ingestion. In order to investigate the effects of the ingestion of the supplements on wrestlers' performance, the subjects performed Bruce test for the second time 45 minutes after consuming the supplements. Different statistical methods (repeated measures, ANOVA and t – test) were used to analyze the data. The results showed that the secretion of insulin after 30 minutes in the group which used the complex supplementation of BCAAs+CHO was significantly higher than the group which used carbohydrates and the placebo group (p<0.05). The performance of the BCAAs+CHO group and CHO in second Bruce test declined when compared with the first one. Yet the decline was insignificant (P>0.05) while performance decline in control group was significant (P<0.05).
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