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在骑自行车和划船中比较替代的 νLamax 确定方法
Florian Micke1, Sebastian Mühlenhoff2, Adrian Swoboda2
1Department of Sport and Management, IST University of Applied Sciences, Duesseldorf, Germany.
Journal of sports sciences
|October 6, 2025
概括
确定最大乳酸积累率 (νLamax) 的简化方法是有效的替代方法. 多项式建模 (νLamax_Poly) 和5分钟的乳酸测量 (νLamax_5min) 为评估运动员的糖分分解功率提供了实际解决方案.
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
- 生物化学 生物化学
背景情况:
- 最大乳酸积累率 (νLamax) 对于理解糖溶性功率至关重要.
- 传统的 νLamax 测定是耗时且资源密集的,因为在运动后进行多次乳酸测量.
研究的目的:
- 为了比较两种简化的 νLamax 确定方法:多项式建模 (νLamax_Poly) 和一次5分钟的运动后乳酸测量 (νLamax_5min).
- 为了检查划船和骑自行车学科之间的 νLamax 的差异.
- 为了研究nLamax的基于性别的变化.
主要方法:
- 152名训练有素的运动员在划船 (20秒) 或自行车 (15秒) 运动仪上进行了最大的冲刺.
- 血液中的乳酸被抽取在休息状态下,并在运动后的10分钟内每分钟抽取.
- 使用传统方法,多项式建模 (νLamax_Poly) 和单次5分钟测量 (νLamax_5min) 计算了 νLamax.
主要成果:
- 无论是 νLamax_Poly 还是 νLamax_5min 都与传统方法 (r=0.99) 显示出极好的一致性.
- νLamax_Poly没有偏差,而 νLamax_5min 略有低估,但精度更高.
- 手的 νLamax 比骑自行车的人低;男性的 νLamax 比女性高.
结论:
- νLamax_Poly 和 νLamax_5min 是有效和实用的替代传统方法来评估糖解力.
- 这些简化方法有助于在体育科学研究和现场环境中得到更广泛的应用.
- 在划船和骑自行车之间,以及两性之间,存在 νLamax 的显著差异.
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