澳大利亚规则足球运动员力量领域的可复制性
Mary C Geneau1, David L Carey1, Paul B Gastin1
1Sport, Performance, and Nutrition Research Group, School of Allied Health, Human Services, and Sport, La Trobe University, Melbourne, Victoria, Australia; and.
Journal of strength and conditioning research
|December 20, 2024
概括
强度域的数量和负载在澳大利亚规则足球运动员中是一致的,但特定的变量选择程序在两个时间点中无法完全复制. 这有助于从业者选择适当的力量测试和指标.
科学领域:
- 运动科学 运动科学 运动科学
- 生物力学 生物力学
- 强度和适应条件 强度和适应条件
背景情况:
- 最大的下肢力量是运动表现的关键,多维构造.
- 技术的进步提供了许多下肢力量指标,使数据解释复杂化.
- 主要组件分析 (PCA) 已被提议用于度量选择,但仅限于横截面设计.
研究的目的:
- 调查PCA方法的可复制性,用于在两个不同的时间点减少和选择指标.
- 评估澳大利亚规则足球运动员在一个赛季中的力量领域和变量选择的一致性.
主要方法:
- 33名澳大利亚规则足球运动员在季前赛 (T1) 和赛季结束 (T2) 进行了7次下肢伸展器强度测试.
- 每个测试会都产生了280个力-时间指标.
- 主要组件分析 (PCA) 用于度量减少和域识别.
主要成果:
- 需要9个PCA组件来解释两个时间点至少70%的数据差异.
- 七个组件在T1和T2的组件上显示了类似的度量负载.
- 变量选择程序在两个时间点都没有产生完全相同的变量集.
结论:
- 力量域的数量和负载在澳大利亚规则足球运动员中是一致的.
- 基于PCA的变量选择程序在季前赛和赛季结束之间显示出有限的可重复性.
- 实践者可以利用已识别的强度域和子域来明智地选择强度测试和指标.
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