咖啡因咖啡对休自行车运动员越野自行车运动表现的影响
Daniel Trujillo-Colmena1,2, Javier Fernández-Sánchez1, Adrián Rodríguez-Castaño1
1Sport Sciences Research Centre, Rey Juan Carlos University, 28943 Madrid, Spain.
Nutrients
|March 13, 2024
概括
咖啡因摄入量,特别是3毫克/千克溶性咖啡,通过减少时间试验,显著改善了越野自行车运动的表现. 这项研究表明,咖啡可以成为山地骑自行车的有效人体工程学辅助剂.
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
- 营养补充剂 营养补充剂
背景情况:
- 咖啡因对耐力骑自行车 (约1小时) 的人体效应已得到充分证明.
- 关于咖啡因对技术越野 (XC) 骑自行车学科的影响的研究有限.
- XC骑自行车的表现涉及耐力和技术技能,可能会改变咖啡因的益处.
研究的目的:
- 通过咖啡来研究急性咖啡因摄入对XC骑自行车计时赛表现的影响.
- 评估咖啡因对技术上不同XC课程领域的完成时间和表现的影响.
主要方法:
- 11名休XC骑自行车者参加了一个单盲,随机,交叉试验.
- 参与者摄入了3mg/kg咖啡因 (溶性咖啡) 或一种无咖啡因的安慰剂.
- 通过使用GPS进行13.90公里的XC计时测试来测量性能,包括时间,速度,心率和感知到的劳动力 (博格尺度).
主要成果:
- 咖啡因显著减少了总体计时试验完成时间的4.93% (p=0.011).
- 咖啡因在八个技术上具有挑战性的课程部门中的四个提高了表现 (p≤0.010).
- 摄入咖啡因的平均心率较高 (p=0.046),而感知到的劳动力仍然相似 (p=0.676).
结论:
- 在可溶性咖啡形式中急性摄入3mg/kg的咖啡因可以提高XC循环性能.
- 通过咖啡摄入咖啡因似乎是休XC骑自行车者的有效人体工程学辅助.
- 咖啡因的好处延伸到技术要求很高的自行车比赛.
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