Mina Salehi , Jangho Park , Divya Srinivasan , Jeong Ho Kim
{"title":"基于模拟的被动背部支撑外骨骼的生物力学评估:在持续向前弯曲任务中各种支持水平的比较","authors":"Mina Salehi , Jangho Park , Divya Srinivasan , Jeong Ho Kim","doi":"10.1016/j.apergo.2025.104620","DOIUrl":null,"url":null,"abstract":"<div><div>This study evaluated the impacts of five support levels (40, 55, 70, 85, and 100 % actuator strengths) of a passive back-support exoskeleton (BSE) on biomechanical loads associated with commercial crab sorting through musculoskeletal simulation. Whole-body kinematics of 20 male participants performing simulated crab sorting were collected and integrated into a human-BSE interaction simulation framework to predict muscle activity, spinal loads, and contact forces at the human-BSE interfaces. Increasing the BSE support level generally reduced trunk extensor muscle activity (up to 28.6 %) and lumbosacral reaction forces (up to 30.7 %). However, the reduced biomechanical load came at the expense of increased contact forces on the chest and thigh areas, potentially causing local discomfort for vulnerable users. These findings suggest that while BSEs can be effective in reducing low back biomechanical loads during crab sorting, support levels should be carefully selected to ensure adequate assistance while minimizing potential side effects, such as local discomfort or pain.</div></div>","PeriodicalId":55502,"journal":{"name":"Applied Ergonomics","volume":"129 ","pages":"Article 104620"},"PeriodicalIF":3.4000,"publicationDate":"2025-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Simulation-based biomechanical assessment of a passive back support exoskeleton: Comparison of various support levels during a sustained forward bending task\",\"authors\":\"Mina Salehi , Jangho Park , Divya Srinivasan , Jeong Ho Kim\",\"doi\":\"10.1016/j.apergo.2025.104620\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>This study evaluated the impacts of five support levels (40, 55, 70, 85, and 100 % actuator strengths) of a passive back-support exoskeleton (BSE) on biomechanical loads associated with commercial crab sorting through musculoskeletal simulation. Whole-body kinematics of 20 male participants performing simulated crab sorting were collected and integrated into a human-BSE interaction simulation framework to predict muscle activity, spinal loads, and contact forces at the human-BSE interfaces. Increasing the BSE support level generally reduced trunk extensor muscle activity (up to 28.6 %) and lumbosacral reaction forces (up to 30.7 %). However, the reduced biomechanical load came at the expense of increased contact forces on the chest and thigh areas, potentially causing local discomfort for vulnerable users. These findings suggest that while BSEs can be effective in reducing low back biomechanical loads during crab sorting, support levels should be carefully selected to ensure adequate assistance while minimizing potential side effects, such as local discomfort or pain.</div></div>\",\"PeriodicalId\":55502,\"journal\":{\"name\":\"Applied Ergonomics\",\"volume\":\"129 \",\"pages\":\"Article 104620\"},\"PeriodicalIF\":3.4000,\"publicationDate\":\"2025-08-22\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Applied Ergonomics\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0003687025001565\",\"RegionNum\":2,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ENGINEERING, INDUSTRIAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Ergonomics","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0003687025001565","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, INDUSTRIAL","Score":null,"Total":0}
Simulation-based biomechanical assessment of a passive back support exoskeleton: Comparison of various support levels during a sustained forward bending task
This study evaluated the impacts of five support levels (40, 55, 70, 85, and 100 % actuator strengths) of a passive back-support exoskeleton (BSE) on biomechanical loads associated with commercial crab sorting through musculoskeletal simulation. Whole-body kinematics of 20 male participants performing simulated crab sorting were collected and integrated into a human-BSE interaction simulation framework to predict muscle activity, spinal loads, and contact forces at the human-BSE interfaces. Increasing the BSE support level generally reduced trunk extensor muscle activity (up to 28.6 %) and lumbosacral reaction forces (up to 30.7 %). However, the reduced biomechanical load came at the expense of increased contact forces on the chest and thigh areas, potentially causing local discomfort for vulnerable users. These findings suggest that while BSEs can be effective in reducing low back biomechanical loads during crab sorting, support levels should be carefully selected to ensure adequate assistance while minimizing potential side effects, such as local discomfort or pain.
期刊介绍:
Applied Ergonomics is aimed at ergonomists and all those interested in applying ergonomics/human factors in the design, planning and management of technical and social systems at work or leisure. Readership is truly international with subscribers in over 50 countries. Professionals for whom Applied Ergonomics is of interest include: ergonomists, designers, industrial engineers, health and safety specialists, systems engineers, design engineers, organizational psychologists, occupational health specialists and human-computer interaction specialists.