在汽车组装过程中,对上肢外骨架的基于电肌图的疲劳评估
Jason C Gillette1, Shekoofe Saadat1, Terry Butler2
1Department of Kinesiology, Iowa State University, Ames, IA, USA.
Wearable technologies
|March 15, 2024
概括
上半身外骨架减少了汽车工人在执行空中任务时的肌肉紧张. 该装置降低了前骨肌活动和疲劳风险,特别是在长时间举起手臂时.
科学领域:
- 人体工程学和人类因素
- 职业健康和安全问题 职业健康和安全问题
- 可穿戴技术可穿戴技术
背景情况:
- 在汽车组装中,重复的空头任务可能会导致肌肉骨疾病.
- 目前正在探索上肢外骨架,以减轻工业环境中的身体压力.
研究的目的:
- 为了评估上体外骨架 (Levitate Airframe) 在减少汽车组装任务期间肌肉疲劳的有效性.
- 评估外骨对高臂姿势的工人肌肉活动和疲劳的影响.
主要方法:
- 电肌图 (EMG) 用于测量前半身,双臂,上形和直立脊柱的肌肉活动.
- 16名汽车装配工人用外骨或没有外骨执行任务.
- 进行了可用性调查,以收集对舒适性和感知到的好处的反.
主要成果:
- 外骨显著降低了前腹骨肌的平均活跃EMG振幅和疲劳风险 (p < .01).
- 在高臂姿势 (≥90°和≥135°) 时间较长的任务中,益处更为明显.
- 工人报告了对舒适度和减轻疲劳的积极反,但指出了对某些工作职责的潜在障碍.
结论:
- 车身上部外骨架显示出在汽车组装中减少肌肉疲劳的潜力,特别是在空中任务中.
- 建议进行定量测试,以使外骨的使用与特定的工作需求保持一致.
- 工人反对于优化外骨实施和解决可用性问题至关重要.
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