BEGIN:VCALENDAR
VERSION:2.0
PRODID:Linklings LLC
BEGIN:VTIMEZONE
TZID:America/Chicago
X-LIC-LOCATION:America/Chicago
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TZOFFSETFROM:-0600
TZOFFSETTO:-0500
TZNAME:CDT
DTSTART:19700308T020000
RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=2SU
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TZOFFSETFROM:-0500
TZOFFSETTO:-0600
TZNAME:CST
DTSTART:19701101T020000
RRULE:FREQ=YEARLY;BYMONTH=11;BYDAY=1SU
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BEGIN:VEVENT
DTSTAMP:20251016T135137Z
LOCATION:Grand C/D South
DTSTART;TZID=America/Chicago:20251014T141000
DTEND;TZID=America/Chicago:20251014T143000
UID:HFESAM_ASPIRE 2025_sess237_LECT538@linklings.com
SUMMARY:Comparing Digital Human Model Outputs between Several Body Trackin
 g Modalities in Virtual Reality
DESCRIPTION:Ryuta Dharmaputra (Ontario Tech University), Ryan Porto (Gener
 al Motors), Joel Cort Cort (University of Windsor), and Nicholas La Delfa 
 (Ontario Tech University)\n\nProactive ergonomics uses digital human model
 s (DHMs) early in design to optimize performance and reduce costs. Integra
 ting virtual reality (VR) and motion capture technologies enables real-tim
 e DHM posturing, eliminating the need to manually posture the DHM – which 
 are both time-consuming and prone to bias. This study evaluated DHM hand l
 ocation accuracy compared to ground truth hand locations when different bo
 dy tracking systems were used as inputs into the DHM in VR simulations. 16
  participants were instrumented with inertial (Xsens), optical (Vicon) and
  VR (Vive) body tracking systems and completed a load transfer task with t
 heir right arm. Across all body tracking modalities, DHM hand locations ha
 d an RMSE of approximately 10 cm compared to ground truth hand locations. 
 Hand locations tracked using the Vive trackers showed the lowest overall R
 MSE relative to actual hand locations (13.7 cm ±5.9cm). Spine compression 
 was most affected at lower heights and furthest horizontal reaches. Furthe
 r investigation would be required to determine the source of these errors,
  as the DHM hand locations represent both motion capture sensor and kinema
 tic modeling from the Process Simulate software. Overall, body tracking wi
 th the Vive resulted in marginal hand location errors and represents a pro
 mising approach moving forward.\n\nTrack: Occupational Ergonomics\n\nSessi
 on Chairs: Saman Madinei (Meta) and Mina Salehi (Oregon State University)\
 n\n
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