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首页> 外文期刊>Journal of exercise physiology online >Vitamin B6 and Maltodextrin Sport Drink Modify Glucose Levels of Elite Mountain Biking Athletes
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Vitamin B6 and Maltodextrin Sport Drink Modify Glucose Levels of Elite Mountain Biking Athletes

机译：维生素B6和麦芽糊精运动饮料可改善优秀山地自行车运动员的葡萄糖水平

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Bronkhorst I, Silva L, Freitas L, Martins M, Martins H, Malfatti C. Vitamin B6 and Maltodextrin Sport Drink Modify Glucose Levels of Elite Mountain Biking Athletes. JEPonline 2014;17(4):113-121. The aim of this study was to analyze the effects of vitamin B6 and/or maltodextrin in pre- and post-exercise conditions and changes in performance and blood glucose (BG) levels in maximal test performed in laboratory on elite mountain biking (MTB) athletes. Eight male bikers [age, 28.4 ± 10.6 yrs; body fat, 9.46 ± 3.76%; VO2 max, 61.13 ± 8.4 mL·kg-1 ·min-1 ] received supplementation drinks composed of carbohydrate (CHO) maltodextrin (1 g·kg-1 ) and/or vitamin B6 (30 mg·kg-1 ) or a placebo (juice light with 3.5 g of maltodextrin) in 500 ml of water. The subjects performed a maximal cycling test on a cycle ergometer at 60 rev·min-1 , starting at 50 W that was increased by 25 W every 3 min until exhaustion. Blood glucose was measured at rest, post-supplementation, and post-exercise testing. The comparisons between variables were made using analysis of variance (ANOVA) with post hoc Bonferroni test. A P<0.01). CHO+vitamin B6 increased blood glucose during the cycle ergometer test, thus indicating that maltodextrin and vitamin B6 supplementation is a good strategy to increase availability of glucose fuel during exercise.
机译：Bronkhorst I，Silva L，Freitas L，Martins M，Martins H，MalfattiC。维生素B6和麦芽糖糊精运动饮料可改善精英山地自行车运动员的葡萄糖水平。 JEPonline 2014; 17（4）：113-121。这项研究的目的是分析运动前和运动后维生素B6和/或麦芽糖糊精的作用以及实验室对精英山地自行车（MTB）运动员进行的最大测试中运动和血糖（BG）水平的变化。八名男性骑自行车的人[年龄，28.4±10.6岁;体脂为9.46±3.76％;最高摄氧量为61.13±8.4 mL·kg-1·min-1]，该补充饮料由碳水化合物（CHO）麦芽糊精（1 g·kg-1）和/或维生素B6（30 mg·kg-1）或安慰剂组成（在3.5毫升麦芽糖糊精中补充水分）在500毫升水中。受试者以60 rpm·min-1的频率在测功机上进行了最大的自行车测试，此测试从50 W开始，每3分钟增加25 W，直到筋疲力尽。在休息，补充和运动后测试中测量血糖。变量之间的比较使用事后Bonferroni检验使用方差分析（ANOVA）进行。 P ＜0.01）。 CHO +维生素B6在骑行测力计测试期间增加了血糖，因此表明麦芽糖糊精和维生素B6的补充是增加运动过程中葡萄糖燃料利用率的好策略。

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