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• W4386869681 abstract "Lower back injuries are the most common work-related musculoskeletal disorders. As a wearable device, a back-support exoskeleton (BSE) can reduce the risk of lower back injuries and passive BSEs can achieve a low device weight. However, with current passive BSEs, there is a problem that the user must push against the device when lifting the leg to walk, which is perceived as particularly uncomfortable due to the resistance. To solve this problem, we propose a novel passive BSE that can automatically distinguish between lifting and walking. A unique spring-cable-differential acts as a torque generator to drive both hip joints, providing adequate assistive torque during lifting and low resistance during walking. The optimization of parameters can accommodate the asymmetry of human gait. In addition, the assistive torque on both sides of the user is always the same to ensure the balance of forces. By using a cable to transmit the spring force, we placed the torque generator on the person’s back to reduce the weight on the legs. To test the effectiveness of the device, we performed a series of simulated lifting tasks and walking trials. When lifting a load of 10 kg in a squatting and stooping position, the device was able to reduce the activation of the erector spinae muscles by up to 41%. No significant change in the activation of the leg and back muscles was detected during walking." @default.
• W4386869681 created "2023-09-20" @default.
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• W4386869681 date "2023-01-01" @default.
• W4386869681 modified "2023-10-14" @default.
• W4386869681 title "A Novel Passive Back-support Exoskeleton with a Spring-cable-differential for Lifting Assistance" @default.
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• W4386869681 doi "https://doi.org/10.1109/tnsre.2023.3317059" @default.
• W4386869681 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/37725739" @default.
• W4386869681 hasPublicationYear "2023" @default.
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