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A novel approach to quantify the assistive torque profiles generated by passive back-support exoskeletons.
Madinei, Saman; Kim, Sunwook; Park, Jang-Ho; Srinivasan, Divya; Nussbaum, Maury A.
Afiliación
  • Madinei S; Department of Industrial and Systems Engineering, Virginia Tech, Blacksburg, VA 24061, USA.
  • Kim S; Department of Industrial and Systems Engineering, Virginia Tech, Blacksburg, VA 24061, USA.
  • Park JH; Department of Industrial Engineering, Clemson University, Clemson, SC 29634, USA.
  • Srinivasan D; Department of Industrial Engineering, Clemson University, Clemson, SC 29634, USA.
  • Nussbaum MA; Department of Industrial and Systems Engineering, Virginia Tech, Blacksburg, VA 24061, USA. Electronic address: nussbaum@vt.edu.
J Biomech ; 145: 111363, 2022 12.
Article en En | MEDLINE | ID: mdl-36332510
Industrial exoskeletons are a promising ergonomic intervention to reduce the risk of work-related musculoskeletal disorders by providing external physical support to workers. Passive exoskeletons, having no power supplies, are of particular interest given their predominance in the commercial market. Understanding the mechanical behavior of the torque generation mechanisms embedded in passive exoskeletons is, however, essential to determine the efficacy of these devices in reducing physical loads (e.g., in manual material handling tasks). We introduce a novel approach using a computerized dynamometer to quantify the assistive torque profiles of two passive back-support exoskeletons (BSEs) at different support settings and in both static and dynamic conditions. The feasibility of this approach was examined using both human subjects and a mannequin. Clear differences in assistive torque magnitudes were evident between the two BSEs, and both devices generated more assistive torques during trunk/hip flexion than extension. Assistive torques obtained from human subjects were often within similar ranges as those from the mannequin, though values were more comparable over a narrow range of flexion/extension angles due to practical limitations with the dynamometer and human subjects. Characterizing exoskeleton assistive torque profiles can help in better understanding how to select a torque profile for given task requirements and user anthropometry, and aid in predicting the potential impacts of exoskeleton use by incorporating measured torque profiles in a musculoskeletal modeling system. Future work is recommended to assess this approach for other occupational exoskeletons.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Guideline / Prognostic_studies Idioma: En Revista: J Biomech Año: 2022 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Guideline / Prognostic_studies Idioma: En Revista: J Biomech Año: 2022 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos