肩膀辅助外骨对平衡和肌肉活动的影响,在模拟杆登员的模拟杆登任务期间
Liying Zheng1, Christopher Pan2, Leonardo Wei3
1Health Effects Laboratory Division, National Institute for Occupational Safety and Health (NIOSH), Morgantown, WV, USA.
International journal of industrial ergonomics
|October 25, 2024
概括
肩部辅助外骨可能会对建筑工人的平衡产生负面影响,并为预防肌肉骨疾病 (MSDs) 提供有限的好处. 在采用之前,全面的评估至关重要.
科学领域:
- 职业健康 职业健康 职业健康
- 生物力学 生物力学
- 人体工程学就是人体工程学.
背景情况:
- 建筑工作对肌肉骨系统疾病 (MSDs) 构成高风险.
- 外骨在缓解MSD方面表现有前途,但需要对安全性和有效性进行彻底评估.
- 工人平衡和稳定性是外部骨在苛刻的身体任务中实施的关键考虑因素.
研究的目的:
- 评估肩膀辅助外骨对建筑工人执行模拟块铺设任务的平衡和肩膀肌肉活动的影响.
- 为了比较三个不同的外骨模型对不使用外骨在不稳定的表面的影响.
主要方法:
- 七名男性参与者在一个不稳定的平台上,在肘部和肩膀高度进行了35磅的砂起重任务.
- 通过从力板数据中使用压力中心 (COP) 参数 (MDIST,EXCUR,VEL) 来评估平衡.
- 用电肌图 (EMG) 测量了六个上肢肌肉的肩膀肌肉活动.
主要成果:
- 两个外骨显著增加了压力中心距离 (MDIST),表明平衡较差.
- 一个外骨增加了压力速度 (VEL) 和游览 (EXCUR) 的中心,进一步损害了稳定性.
- 提升高度影响肌肉活动,但不影响平衡;只有一个外骨显示肩部肌肉活动略有减少.
结论:
- 评估的肩膀辅助外骨架在此任务中为预防上肢MSD提供了有限的益处.
- 外骨可能会对全身平衡产生负面影响,特别是在不稳定的表面上.
- 对有效性和平衡的彻底的实施前评估对于建筑外骨至关重要.
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