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目的:探讨大豆寡肽对提高越野运动员运动能力的影响。方法:吉林省滑雪队男子越野滑雪运动员21名,随机成3组即补肽组(SOP)、补蛋白组(WPC)、空白对照组(CG),分别给A、B、C三种试验饮料。试验共进行4周,受试运动员每周训练5天,每天训练4-6h,试验期间不使用其他营养保健品。分别在试验前和试验后对运动员身体成分、血乳酸、CK活性进行测定。结果:SOP组和WPC组试验前后体重比较均有显著性差异(P<0.05);SOP组试验前后的瘦体重比较有极显著性差异(P<0.01),WPC组试验前后的瘦体重比较有显著性差异(P<0.05)。SOP组试验前后训练后血乳酸比较有显著性差异(P<0.05)。SOP组试验前后肌酸激酶的活性比较有显著性差异(P<0.05)。结论:大豆寡肽可增加越野滑雪运动员瘦体重,降低运动时乳酸的生成,促进运动后血乳酸的清除,降低CK活性,对骨骼肌细胞膜具有一定保护作用,从而有效促进越野滑雪运动员身体机能的提高。
Objective: To investigate the effect of soybean oligopeptide on improving athletic ability of cross-country athletes. Methods: Totally 21 male mountain cross-country skiers in Jilin Province were randomized into 3 groups, ie, SOP, WPC and CG, and were randomly assigned to three experimental drinks A, B and C . A total of four weeks of the trial, the test athletes training five days a week, training 4-6h a day, during the trial does not use other nutritional supplements. The body composition, blood lactate and CK activity of athletes were measured before and after the experiment. Results: There were significant differences in body weight before and after the test between SOP group and WPC group (P <0.05). There was a significant difference in body weight between before and after SOP group (P <0.01), before and after WPC group Significant difference (P <0.05). Blood lactate levels were significantly different between SOP group before and after training (P <0.05). The activity of creatine kinase before and after SOP group was significantly different (P <0.05). CONCLUSION: Soybean oligopeptide can increase the lean body mass of cross-country skier, decrease the production of lactate during exercise, promote the clearance of serum lactate after exercise and decrease the activity of CK, which can protect the cell membrane of skeletal muscle effectively and effectively promote the body function of cross-country skier improve.