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检查女性和男性在负载步行任务期间对膝盖的平面贡献和膝关节总关节运动量

Kellen T Krajewski^1,2, Camille C Johnson³, Qi Mi¹

¹Department of Sports Medicine and Nutrition, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.

Orthopaedic journal of sports medicine

|March 21, 2025

概括

军事载荷和强迫行进显著增加了膝盖引瞬间,这是膝盖关节炎的危险因素. 男性的膝盖引时刻贡献率高于女性,这表明负载策略不同.

科学领域:

生物力学生物力学
整形外科整形外科整形外科
军事医学军事医学

背景情况:

在军事人员中患膝关节关节炎的高患病率.
膝关节总关节时刻 (KTJM) 和膝关节附加时刻 (KAM%) 的百分比贡献与膝关节关节炎有关.
性,载荷运输和强迫行进 (FM) 可能会改变膝盖机械.

研究的目的:

确定军事相关的负载大小,运动模式 (跑步与FM) 和性别对KTJM及其平面贡献的影响.
研究重量和步态如何影响新兵年龄的成人的膝盖力学.

主要方法:

对20名健康新兵 (10名男性,10名女性) 进行了受控实验室研究.
步行任务包括没有负载的跑步和FM,45%的体重 (BW) 和55%的体重.
使用3x2x2混合模型ANOVA测量KTJM,膝盖屈曲时刻 (KFM%),KAM%和膝盖旋转时刻 (KRM%).

主要成果:

强迫游行 (FM) 增加了KTJM,而不是跑步.
运行显示KAM%和KRM%高于FM的高度罢工.
在中间,FM的KAM%和KRM%比运行更高,特别是在负载下.
在FM期间,男性在脚跟罢工和中间位置表现出比女性更高的KAM%.

结论:

携带负载,特别是在FM期间,将KAM%提高到膝关节骨关节炎患者群体中所见的水平.
男性的KAM%比女性更高,这表明在负载下有不同的运动执行策略.
研究结果强调了在艰苦的军事活动中,膝盖负荷力学方面的潜在基于性别的差异.

关键词:

身体承载的负载.运动学的动力学.货物运输车载载货物运输车载货物军事军事军事军事军事军事骨关节炎是一种关节炎.

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