气动膝关节触发式外骨架在长时间行走和载荷运输过程中对步态稳定的影响
Caleb D Johnson1, Lucas C Sarantos1, Dominik Fohrmann2
1Military Performance Division, U.S. Army Research Institute of Environmental Medicine, Natick, MA, USA.
Journal of applied biomechanics
|December 30, 2025
概括
下肢外骨架 (EXOs) 在负载行走期间降低了远部局部动态稳定性 (LDS). 这表明用户可能需要习惯期来适应在军事任务中佩戴EXO.
科学领域:
- 生物力学 生物力学
- 人类增强器的人类增强器
- 军事技术 军事技术
背景情况:
- 下肢外骨架 (EXO) 显示出增强军事性能和降低承载活动中受伤风险的前景.
- EXO对局部动态稳定性 (LDS) 的影响,这是电机控制的关键指标,仍然在很大程度上未被调查.
研究的目的:
- 为了确定在模拟的军事行军期间,在现役士兵的LDS上佩戴带有气动驱动,膝盖驱动的外骨架的影响.
主要方法:
- 十一名士兵以30%的体重负荷进行了2英里长的鲁克游行,无论是带有还是没有EXO.
- 惯性测量单元捕获了腿部和骨盆运动.
- 当地动态稳定性 (LDS) 是从陀螺仪的数据计算在100个步骤在开始和结束的三月.
主要成果:
- 外骨使用显著减少了右的LDS (P < .01) 并显示左的效果大小 (P = .07).
- 盆腔LDS与外骨相比较高,也具有很大的效果大小,尽管在统计学上并不显著 (P = .07).
结论:
- 下肢外骨架似乎在负载行进时减少远端LDS.
- 研究结果表明,士兵可能需要习惯期来有效地适应和利用外骨,从而可能减轻稳定性变化.
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