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首页> 美国卫生研究院文献>Micromachines >Ergonomic Mechanical Design and Assessment of a Waist Assist Exoskeleton for Reducing Lumbar Loads During Lifting Task
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Ergonomic Mechanical Design and Assessment of a Waist Assist Exoskeleton for Reducing Lumbar Loads During Lifting Task

机译：腰部辅助外骨骼的人体工程学机械设计和评估，以减轻举升任务期间的腰部负荷

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The purpose of this study was to develop a wearable waist exoskeleton to provide back support for industrial workers during repetitive lifting tasks and to assess reductions in back muscular activity. The ergonomic mechanical structure is convenient to employ in different applications. The exoskeleton attaches to the wearer’s body with 4 straps, takes only 30 s to put the exoskeleton on without additional help, weighs just 5 kg and is easy to carry. The mechanical clutch can assist the wearer as needed. Inertia Measurement Unit (IMU) was used to detect wearers’ motion intention. Ten subjects participated in the trial. Lower back muscle integrated electromyography (IEMG) of the left and right lumbar erector spinae (LES), thoracic erector spinae (TES), latissimus dorsi (LD) were compared in symmetrical lifting for six different objects (0, 5, 10, 15, 20, 25 kg) under two conditions of with and without the exoskeleton. The exoskeleton significantly reduced the back muscular activity during repetitive lifting tasks. The average integrated electromyography reductions were 34.0%, 33.9% and 24.1% for LES, TES and LD respectively. The exoskeleton can reduce burden and the incidence of strain on lumbar muscles during long-term lifting work.
机译：这项研究的目的是开发一种可穿戴的腰部外骨骼，以在重复举重任务中为工业工人提供背部支撑，并评估背部肌肉活动的减少。符合人体工程学的机械结构便于在不同应用中使用。外骨骼通过4条绑带固定在佩戴者的身体上，无需额外帮助，只需30 s即可戴上外骨骼，重量仅为5千克，并且易于携带。机械离合器可以根据需要为穿着者提供帮助。惯性测量单元（IMU）用于检测佩戴者的运动意图。十名受试者参加了试验。比较了左，右腰直肌脊柱（LES），胸直肌脊柱（TES），背阔肌（LD）的下背部肌肉综合肌电图（IEMG）在六个不同对象（0、5、10、15， 20，25 kg）在有和没有外骨骼的两个条件下。在重复提举任务期间，外骨骼显着减少了背部肌肉活动。 LES，TES和LD的平均综合肌电图降低分别为34.0％，33.9％和24.1％。在长期的举重工作中，外骨骼可以减轻负担并减轻腰肌劳损的发生率。

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