Modeling and Simulating Lifting Task of Below-Knee Amputees

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• 关键词：Below ; knee ; Amputees ; Lifting ; Modeling
• 刊名：Lecture Notes in Computer Science
• 出版年：2015
• 出版时间：2015
• 年：2015
• 卷：9185
• 期：1
• 页码：134-143
• 全文大小：2,356 KB
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• 作者单位：Yan Fu (14)
  Shiqi Li (14)
  Qian Chen (14)
  Wei Zhou (14)
  
  14. School of Mechanical Science and Engineering, Huazhong University of Science and Technolgy, Wuhan, 430074, Hubei Province, China
  
• 丛书名：Digital Human Modeling. Applications in Health, Safety, Ergonomics and Risk Management: Ergonomics and Health
• ISBN：978-3-319-21070-4
• 刊物类别：Computer Science
• 刊物主题：Artificial Intelligence and Robotics
  Computer Communication Networks
  Software Engineering
  Data Encryption
  Database Management
  Computation by Abstract Devices
  Algorithm Analysis and Problem Complexity
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1611-3349

文摘

Lifting is a common activity to below-knee amputees (BKA) in occupational and living occasions. Appropriate lifting posture is crucial to physical safety and health to those BKAs. Often healthy parts of BKAs might be hurt due to extra and asymmetric force exertion compensating for deficiency of disabled body parts. To prevent further hurt, a validated biomechanical model describing lifting is essential to analyze lifting behavior of those handicapped. In this study, twelve BKAs were recruited to lift 45?N weights from the floor. Subjects are asked to lift three levels of weights (0?N, 30?N, 60?N) by two postures: squat lifting and stoop lifting. Twelve non-BKAs were recruited as comparison group to study the variance caused by disability. Calculated forces based on Anybody were compared with EMG signals of body parts on spine and thigh. A framework of three-level constraints models were applied to adjust the difference between calculated forces and EMGs and the results validate the model.