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PRODID:Linklings LLC
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TZID:America/Phoenix
X-LIC-LOCATION:America/Phoenix
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DTSTART:19700101T000000
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BEGIN:VEVENT
DTSTAMP:20241014T203101Z
LOCATION:FLW Salon H
DTSTART;TZID=America/Phoenix:20240911T113500
DTEND;TZID=America/Phoenix:20240911T115500
UID:HFESAM_ASPIRE - Presented by HFES_sess193_LECT334@linklings.com
SUMMARY:Effectiveness and Usability of a Trunk Posture Feedback System: An
  Exploratory, Longitudinal Field Study
DESCRIPTION:Lecture\n\nMaury Nussbaum, Jiwon Choi, Sunwook Kim, and Sol Li
 m (Virginia Polytechnic Institute and State University) and Ryan Porto (Ge
 neral Motors)\n\nWearable sensors are recognized for their potential to en
 hance worker health, but field-based evidence of their effectiveness remai
 ns limited. We investigated a commercial, IMU-based postural feedback syst
 em in vehicle assembly environment. Eight workers wore sensors providing a
 uditory and vibrotactile feedback for excessive trunk bending and twisting
  during their regular 10-hour shifts for 10 consecutive days. Initial resu
 lts showed a significant reduction in “poor” postures on the first day of 
 feedback, with excessive bending decreasing by 46.7% and twisting by 26.3%
 . However, these benefits diminished over the study period, suggesting a n
 ovelty effect wherein the initial impact lessened as participants adapted 
 to the system. Participants reported high initial satisfaction, which decl
 ined over time, likely due to inconsistencies in feedback and physical dis
 comfort from the sensor. Despite initial positive outcomes, the system eff
 ectiveness varied among participants, highlighting the need for improved d
 esign to sustain behavioral change and enhance user experience over time.\
 n\nTrack: Occupational Ergonomics\n\nTopics: DEI\n\nSession Chair: Melissa
  Afterman (UCSF)
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