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DTSTART:19700308T020000
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BEGIN:VEVENT
DTSTAMP:20261012T210904Z
LOCATION:Summit Pavilion
DTSTART;TZID=America/Los_Angeles:20261021T173000
DTEND;TZID=America/Los_Angeles:20261021T183000
UID:HFESAM_ASPIRE 2026_sess257_POST288@linklings.com
SUMMARY:Measuring Interface Force Transmission Dynamics in a Passive Shoul
 der Exoskeleton
DESCRIPTION:Udaya Sankar Nadendla, Zongwei Zhen, Swarup Bhunia, and Suman 
 Chowdhury (University of Florida)\n\nPassive shoulder exoskeletons are inc
 reasingly used to reduce physical strain during overhead and repetitive in
 dustrial tasks. However, their effectiveness depends on how well assistanc
 e is transmitted from the device to the user through the human–exoskeleton
  interface. Poor alignment or ineffective coupling may reduce support qual
 ity or create unintended loading at body–exoskeleton contact points. In th
 is preliminary study, we aim to measure and characterize force transmissio
 n dynamics at the upper-arm coupling site using a multimodal sensing syste
 m that integrates an inertial measurement unit and a thin-film force senso
 r. The inertial measurement unit is used to estimate upper-arm segment ori
 entation, while the force sensor measured normal interface forces during l
 ifting tasks with a passive shoulder exoskeleton. We hypothesized that int
 erface force transmission would show repeatable patterns during dynamic li
 fting and vary systematically with upper-arm segment motion. Preliminary r
 esults showed consistent upper-arm range of motion and repeatable cyclic l
 oading patterns across lifting repetitions, with peak interface forces of 
 approximately 20 N. Upon successful completion of this study, the proposed
  sensing approach can provide an objective method for evaluating assistanc
 e quality, device fit, and biomechanical compatibility in passive shoulder
  exoskeletons during realistic occupational tasks.\n\n
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