骑自行车中的节奏悖论-第1部分:最大的乳酸平稳状态和碳水化合物利用量取决于骑自行车的节奏
Ralph Beneke1, Marisa Granseyer1, Renate M Leithäuser1
1Medizin Training und Gesundheit, Philipps Universität Marburg, Marburg, Germany.
更高的循环节奏 (RPM) 会增加最大乳酸平稳状态 (MLSS),但不会改变碳水化合物燃烧 (CHOMLSS) 或与最大可实现的RPM (RPMMAX) 相相关. 这表明节奏对MLSS的影响独立于燃料利用率和峰值节奏潜力.
科学领域:
- 运动生理学 运动生理学
- 运动科学 运动科学
- 人类的表现人类的表现
背景情况:
- 最大乳酸稳定状态 (MLSS) 是耐力能力的一个关键指标.
- 循环节奏 (每分钟转速,RPM) 可能会影响MLSS和基板利用.
- 了解节奏,MLSS和碳水化合物燃烧 (CHOMLSS) 之间的关系对于优化训练至关重要.
研究的目的:
- 为了确定更高的循环节奏 (RPM) 是否与更高的绝对和/或分数碳水化合物燃烧 (CHOMLSS) 相关联.
- 研究RPM依赖的MLSS效应与最大可实现的RPM (RPMMAX) 之间的关系.
主要方法:
- 十二名健康的男性接受了增量负载测试,以确定峰值功率和氧气吸收.
- 最大乳酸稳定状态 (MLSS) 在50和100 RPM时进行评估.
- 测量了碳水化合物燃烧 (CHOMLSS) 和最大可实现的RPM (RPMMAX).
主要成果:
- 与50 RPM相比,MLSS在100 RPM时显著更高.
- 尽管每分钟100转的MLSS更高,但氧气吸收,二氧化碳产量,呼吸交换比率或CHOMLSS没有显著差异.
- 在MLSS和RPMMAX的RPM依赖差异之间没有发现相关性.
结论:
- 更高的循环节奏 (RPM) 会导致更高的最大乳酸稳定状态 (MLSS).
- 在MLSS的碳水化合物燃烧 (CHOMLSS) 在50到100 RPM之间没有显著差异.
- 取决于RPM的MLSS效应与最大可实现的RPM (RPMMAX) 没有线性关系.
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