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Kellen T Krajewski¹, Camille C Johnson², Qi Mi³

¹Department of Sports Medicine and Nutrition, University of Pittsburgh, PA, USA; Department of Orthopedics, University of Colorado School of Medicine, Aurora, CO, USA.

Journal of biomechanics

|April 6, 2025

概括

沉重的负载在行进过程中降低了中侧稳定性,增加了车冲动 (J_Trunk). 在那些失败的负载游行中,更高的J_Trunk表明在军事任务中受伤的风险因素.

科学领域:

生物力学生物力学
人类因素工程人类因素工程
军事科学军事科学

背景情况:

战士们经常用重载强行行进,但导致高伤率,通常是因为滑倒,倒或跌倒.
个体表现出中侧稳定性降低,使他们更容易在苛刻的任务中跌倒.

研究的目的:

调查载荷,性别和任务完成对强迫行进期间中侧稳定性参数的影响.
为了确定与军事人员进行负载游行的伤害风险相关的生物力学因素.

主要方法:

24名成年人 (18-35岁,12名男性,12名女性) 进行了装载和装卸的 (55%的体重) 强制游行.
测量的质量中心位置 (z_B),方向 (Δz_B),步幅 (w) 和行李箱冲动 (J_Trunk).
分析时间序列数据,使用偏移波动分析和直接控制分析.

主要成果:

载荷运输显著增加了干冲动 (J_干) 的平均值和可变性.
质量中心位置 (z_B) 和方向 (Δz_B) 的中侧控制在很大程度上不受负载的影响.
负载降低了步幅 (w) 和干脉冲 (J_Trunk) 的控制,尽管J_Trunk仍然受到严格监管.
与完成者相比,无法完成负载游行的个人表现出明显更大的J_Trunk.
没有观察到性行为的显著影响.

结论:

随着负载增加的干部冲动 (J_干部) 表明试图减轻不稳定性,但可能表明某些个体的干部强度/耐力不足.
那些未能负载地行进的人中较高的J_Trunk可能会识别出受伤风险较高的人.
车冲动 (J_Trunk) 可以作为一种有价值的评估参数,用于识别在载荷运输过程中容易摔倒和受伤的战士.

关键词:

机身载体负载的负载.布布布的布布的步行方式步行方式军事军事军事军事军事

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