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咖啡因对垂直跳高度的影响:现实生活中的大学生运动员方法
Zacharias Papadakis1, Vassilios Panoutsakopoulos2, Antonella Schwarz1
1Barry University, Human Performance Laboratory, Department of Health Promotion and Clinical Practice, Miami Shores, FL, USA.
咖啡因在5毫克/公斤的剂量并没有改善训练有素的NCAA运动员的垂直跳的表现. 这种剂量符合国家大学田径协会 (NCAA) 规定,但对式跳跃或反运动跳跃没有人体效应.
科学领域:
- 运动科学 运动科学 运动科学
- 运动生理学 运动生理学
- 营养生物化学 营养生物化学
背景情况:
- 咖啡因对垂直跳跃表现的人体效应受到争论,特别是在符合NCAA的剂量 (5毫克/公斤) 时.
- 咖啡因在训练有素的个体中提高爆炸性运动表现的证据是不一致的.
- 这项研究调查了咖啡因对NCAA法规内的垂直跳转指标的影响.
研究的目的:
- 为了确定5毫克/公斤的急性咖啡因摄入是否可以提高式跳跃 (SJ) 和反运动跳跃 (CMJ) 的表现.
- 在垂直跳中探索对咖啡因的潜在性别特异反应.
- 分析咖啡因摄入后跳跃性能的试验对试验的变化.
主要方法:
- 一个单盲,随机化,交叉试验,涉及40名NCAA第二师运动员 (18名女性,22名男性).
- 参与者摄入了5mg/kg咖啡因或安慰剂,然后在摄入后60分钟进行SJ和CMJ测试.
- 线性混合效应模型分析了性能数据,考虑了条件,性别和试验变化.
主要成果:
- 与安慰剂相比,摄入咖啡因导致SJ和CMJ高度的微不足道,无意义的变化.
- 男性的SJ和CMJ性能明显高于女性,与咖啡因没有相互作用效应.
- 试验中的表现有所改善,表明了增强效应,并且观察到实质性的个人间变异性.
结论:
- 符合NCAA规则的5毫克/公斤咖啡因剂量没有提高大学运动员的垂直跳跃表现.
- 基线跳跃表现的性别差异没有受到咖啡因的影响,这表明其他因素是主要决定因素.
- 研究结果质疑咖啡因在弹道任务中的普遍人体效应要求,并建议需要个性化剂量策略.
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