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TZID:America/Chicago
X-LIC-LOCATION:America/Chicago
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DTSTART:19700308T020000
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DTSTART:19701101T020000
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BEGIN:VEVENT
DTSTAMP:20251016T135145Z
LOCATION:Grand C/D South
DTSTART;TZID=America/Chicago:20251015T133000
DTEND;TZID=America/Chicago:20251015T135000
UID:HFESAM_ASPIRE 2025_sess242_LECT228@linklings.com
SUMMARY:Model-based biomechanical evaluation of a passive back-support exo
 skeleton with adjustable actuator strength during simulated crab sorting t
 asks
DESCRIPTION:Mina Salehi (Oregon State University), Jangho Park (Texas A&M 
 University), Divya Srinivasan (Clemson University), and Jeong Ho Kim (Texa
 s A&M University)\n\nThis study evaluated the effects of various support l
 evels of a passive back-support exoskeleton (BSE) during crab sorting task
 s. Whole-body kinematics were collected using an 8-camera optical motion c
 apture system while twenty male participants sorted mock-up crabs. A human
 -BSE interaction simulation framework was developed to predict muscle acti
 vity, spinal loads, and contact forces at the human-BSE interfaces based o
 n collected kinematic data. Simulations were conducted without the BSE and
  with five different support levels of the BSE (i.e., 40%, 55%, 70%, 85%, 
 and 100% of the maximum actuator strength). The results showed that increa
 sing the BSE support level generally reduced trunk muscle activity (up to 
 28%) and lumbosacral reaction forces (up to 31%). However, these biomechan
 ical benefits came at the expense of increased contact forces on the chest
  and thigh areas. These findings suggest that while BSE can be a potential
  intervention to reduce low back biomechanical loads during crab sorting, 
 support levels should be selected carefully to balance biomechanical benef
 its with potential drawbacks such as local discomfort and pain.\n\nTrack: 
 Occupational Ergonomics\n\nSession Chair: Jay Kim (Texas A&M University)\n
 \n
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