一种同位素甜菜饮料在冲刺运动和身体活跃个体的跳跃表现期间对功率输出的影响:随机交叉试验
Tak Hiong Wong1, Rachelle Sim1, Alexiaa Sim1
1Physical Education and Sports Science, National Institute of Education, Nanyang Technological University, Singapore, Singapore.
Journal of dietary supplements
|September 23, 2024
概括
一种同位素甜菜汁饮料增强了活跃个体冲刺骑自行车的峰值功率输出. 这种饮料含有相同的酸盐含量,参与者也更喜欢这种饮料,而不是普通的甜菜汁.
科学领域:
- 运动科学 运动科学 运动科学
- 营养生物化学 营养生物化学
- 运动生理学 运动生理学
背景情况:
- 已知外源性酸盐摄入可以提高运动表现.
- 甜菜汁是一种丰富的酸盐来源.
研究的目的:
- 为了研究一种同位素甜菜汁饮料对身体活跃个体的跳跃和冲刺表现的影响.
- 为了比较同位素甜菜汁饮料 (ISO-BR) 与含有相同酸盐的标准甜菜汁饮料 (BR) 的疗效.
主要方法:
- 这是一项双盲,随机,交叉研究,涉及23名身体活跃的参与者.
- 参与者在完成反运动跳跃 (CMJ),站立宽跳跃 (SBJ) 和30秒全力冲刺前三个小时消耗了ISO-BR或BR (570mL).
- 唾液中酸盐和酸盐度 (NOx) 与性能指标一起被测量.
主要成果:
- 与BR相比,在ISO-BR摄入后,唾液中NOx度明显高于BR.
- 与BR相比,ISO-BR在自行车冲刺期间显著提高了3.9%的峰值功率输出 (p = .04).
- 在跳跃性能 (CMJ,SBJ) 或在冲刺期间达到峰值功率和平均功率输出时间方面没有观察到显著差异.
结论:
- 一种同位素甜菜汁饮料可以在活跃个体的冲刺骑行期间增强峰值功率输出.
- 性能改善可能与唾液中酸盐和酸盐度增加有关.
- 参与者显然更喜欢ISO-BR,而不是标准的BR饮料.
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