Effect of passive shoulder exoskeleton support during working with arms over shoulder level

IF 3.4 Q2 ENGINEERING, BIOMEDICAL Wearable technologies Pub Date : 2023-01-01 DOI:10.1017/wtc.2023.21
Annina Brunner, Rachel van Sluijs, Tobias Luder, Cherilyn Camichel, Melanie Kos, Dario Bee, Volker Bartenbach, Olivier Lambercy
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Abstract

Abstract Musculoskeletal disorders have the highest prevalence of work-related health problems. Due to the aging population, the prevalence of shoulder pain in workers in physically demanding occupations is increasing, thereby causing rising costs to society and underlining the need for preventive technologies. Wearable support structures are designed to reduce the physical work load during physically demanding tasks. Here, we evaluate the physiological benefit of the DeltaSuit, a novel passive shoulder exoskeleton, using an assessment framework that conforms to the approach proposed in the literature. In this study, 32 healthy volunteers performed isometric, quasi-isometric, and dynamic tasks that represent typical overhead work to evaluate the DeltaSuit performance. Muscle activity of the arm, neck, shoulder, and back muscles, as well as cardiac cost, perceived exertion, and task-related discomfort during task execution with and without the exoskeleton were compared. When working with the DeltaSuit, muscle activity was reduced up to 56% ( p < 0.001) in the Trapezius Descendens and up to 64% ( p < 0.001) in the Deltoideus medius . Furthermore, we observed no additional loading on the abdomen and back muscles. The use of the exoskeleton resulted in statistically significant reductions in cardiac cost (15%, p < 0.05), perceived exertion (21.5%, p < 0.001), and task-related discomfort in the shoulder (57%, p < 0.001). These results suggest that passive exoskeletons, such as the DeltaSuit, have the potential to meaningfully support users when performing tasks in overhead postures and offer a valuable solution to relieve the critical body parts of biomechanical strains for workers at high risk of musculoskeletal disorders.
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被动肩外骨骼支撑在手臂过肩水平工作时的效果
肌肉骨骼疾病是与工作相关的健康问题中患病率最高的。由于人口老龄化,肩部疼痛在体力要求高的职业中的患病率正在增加,从而导致社会成本上升,并强调了对预防技术的需求。可穿戴支撑结构的设计是为了在体力要求高的任务中减少体力工作负荷。在这里,我们使用符合文献中提出的方法的评估框架来评估DeltaSuit(一种新型被动肩部外骨骼)的生理效益。在这项研究中,32名健康志愿者分别完成了等距、准等距和动态任务,这些任务代表了典型的头顶工作,以评估DeltaSuit的性能。比较了在有和没有外骨骼的情况下,手臂、颈部、肩部和背部肌肉的肌肉活动,以及心脏成本、感知劳累和任务相关的不适。当使用DeltaSuit时,肌肉活动减少了56% (p <0.001),高达64% (p <0.001)中三角肌。此外,我们观察到腹部和背部肌肉没有额外的负荷。外骨骼的使用导致心脏成本显著降低(15%,p <知觉劳累(21.5%,p <0.001),以及与工作相关的肩部不适(57%,p <0.001)。这些结果表明,被动外骨骼,如DeltaSuit,有可能在用户以头顶姿势执行任务时提供有意义的支持,并为肌肉骨骼疾病高风险工人提供有价值的解决方案,以减轻生物力学压力的关键身体部位。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
5.80
自引率
0.00%
发文量
0
审稿时长
11 weeks
期刊最新文献
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