不同速度的集群分析揭示了两种不同的运行技术,运行经济没有差异
Adrian R Rivadulla1, Xi Chen2, Dario Cazzola1
1Department for Health, University of Bath, Bath, UK.
Sports biomechanics
|July 11, 2024
概括
跑步者表现出不同的技术,但这些变化不会影响跑步经济. 识别不同的跑步集群可以为个性化培训提供信息,超越一种适合所有人的方法,以获得更好的有效性.
科学领域:
- 生物力学 生物力学
- 运动生理学 运动生理学
- 运动科学 运动科学 运动科学
背景情况:
- 运行经济对绩效至关重要,但由于个人之间的高度变化,其与技术的联系尚不清楚.
- 当前的培训方法往往缺乏个性化,这可能会限制有效性.
- 了解基于技术的集群可以使量身定制的培训建议.
研究的目的:
- 根据他们的技术来识别不同的跑步者群.
- 为了比较已识别的集群之间的动力学差异和运行经济.
- 为了评估不同运行速度的集群的一致性.
主要方法:
- 主要组件分析 (PCA) 用于减少动力学数据的维度.
- 聚合的等级分类以按技术分组跑步者.
- 分析了84名训练有素的跑步者在各种跑步机速度下干和下肢动力学.
主要成果:
- 不同速度的集群产生了不同的跑者分区,表明速度依赖.
- 在分析不同速度范围的数据时,出现了两个截然不同的集群,在骨盆倾斜和任务因子上有所不同.
- 在集群之间没有发现运行经济或参与者特征的显著差异.
结论:
- 个体运行技术的变化本身并不会影响运行经济.
- 根据技术对跑步者进行分组,考虑一系列的速度,可以揭示不同的生物力学特征.
- 基于已识别的技术集群的个性化培训策略可能会比通用方法提高培训效率.
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