期刊
APPLIED ERGONOMICS
卷 98, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.apergo.2021.103589
关键词
Human augmentation; Occupational exoskeleton; Electromyography
资金
- National Science Foundation [CMMI-1839946]
The study found that using WB-PEXO can significantly reduce muscle activity in the back and legs, particularly when handling loads beyond low-moderate levels (10-15 kg). Additionally, using WB-PEXO also decreased inter-individual variance in muscle activities. Future research should focus on examining diverse users, finding effective matches between WB-PEXO use and specific tasks, and identifying applications in varied work environments.
Whole-body powered exoskeletons (WB-PEXOs) can be effective in reducing the physical demands of heavy occupational work, yet almost no empirical evidence exists on the effects of WB-PEXO use. This study assessed the effects of WB-PEXO use on back and leg muscle activities during lab-based simulations of load handling tasks. Six participants (4M, 2F) completed two such tasks (load carriage and stationary load transfer), both with and without a WB-PEXO, and with a range of load masses in each task. WB-PEXO use reduced median levels of muscle activity in the back (-42-53% in thoracic and -24-43% in lumbar regions) and legs (-41-63% in knee flexors and extensors), and mainly when handling loads beyond low-moderate levels (10-15 kg). Overall, using the WB-PEXO also reduced inter-individual variance (smaller SD) in muscle activities. Future work should examine diverse users, focus on finding effective matches between WB-PEXO use and specific tasks, and identify applications in varied work environments.
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