运行关键能力:不同理论模型的比较
Santiago A Ruiz-Alias1, Alberto A Ñancupil-Andrade2, Alejandro Pérez-Castilla3
1Department of Physical Education and Sport, University of Granada, Granada, Spain.
International journal of sports medicine
|September 29, 2023
概括
不同的临界功率 (CP) 模型对运动员的CP (W ́) 计算对工作能力有重大影响. 只有工作时间和功率-1/时间CP模型准确地预测了疲劳的时间,突出了它们在运动生理学中的实用性.
科学领域:
- 运动生理学 运动生理学
- 运动科学 运动科学 运动科学
- 生物机械分析 生物机械分析
背景情况:
- 临界功率 (CP) 和超过CP (W ́) 的工作能力是评估耐力表现的关键生理指标.
- 为了确定CP和W',存在各种计算模型,这些模型被应用在流行的分析软件中.
- 了解这些模型之间的差异对于准确的生理评估和训练处方至关重要.
研究的目的:
- 为了比较不同分析软件模型中得出的CP (W ́) 值的临界功率 (CP) 和工作能力.
- 为了确定CP值在功率-持续时间曲线 (PDC) 内的位置.
- 评估选择的CP模型对W'平衡的影响及其对时间到耗尽的预测准确性.
主要方法:
- 15名训练有素的运动员完成了多次计时试验 (3,5,10,20分钟),以建立他们的功率持续时间曲线 (PDC).
- 使用五种不同的模型计算了CP和W ́:工作时间 (CPwork),功率-1/时间 (CP1/时间),莫顿超标 (CPhyp),Stryd平台 (CPstryd) 和金猎 (CPCheetah).
- 进行了额外的时间试验 (30,60分钟和4分钟),以验证PCD和W Balance模型上的CP配置.
主要成果:
- 在所有模型中,在估计的CP和W'参数中观察到显著差异 (p<0.001).
- CPCheetah与10-20分钟之间的功率输出相关,而CP1/time,CPstryd,CPwork和CPhyp显示了不同的关联.
- 来自三参数模型的W'高估了耗尽的时间;只有CPwork和CP1/time模型提供了有效的预测 (p≥0.240).
结论:
- 选择一个临界功率模型显著影响计算的W ́及其生理学解释.
- 与其他测试模型相比,工作时间和功率-1/时间模型在预测耗尽时间方面表现出更高的有效性.
- 这些发现强调了模型选择对于准确的生理分析和训练有素运动员的运动处方的重要性.
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