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Related Experiment Video

Updated: Jun 5, 2025

Author Spotlight: Enhancing Post-Stroke Upper Limb Rehabilitation with Robotic Technologies for Improved Motor Recovery and Functional Outcomes
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Exploring user engagement with real-time verbal feedback from an exoskeleton-based virtual exercise coach.

Raju Maharjan1, Sanjana Mendu2, Milton Mariani3

  • 1The University of Oklahoma - Norman Campus, Norman, USA.

Digital Health
|December 9, 2024
PubMed
Summary

A voice-enabled exoskeleton virtual exercise coach (VEC) was found to be more engaging than a human coach. Users desired more personality and embodiment in future VEC designs for personalized interactions.

Keywords:
Conversational agentsengagementexoskeletonnatural language interfacereal-time feedbackspeech recognitionuser experiencevirtual exercise coach

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Area of Science:

  • Human-Computer Interaction
  • Exercise Science
  • Robotics

Background:

  • Sustaining user engagement in physical exercise is a significant challenge.
  • Virtual exercise coaches offer a potential solution to enhance long-term commitment.
  • Voice-enabled feedback is a key component for interactive exercise systems.

Purpose of the Study:

  • To compare user engagement with a voice-enabled exoskeleton virtual exercise coach (VEC) versus a human exercise coach (HEC).
  • To explore user perceptions and gather recommendations for improving VEC technology.

Main Methods:

  • A 6-week lab-based mixed-methods study was conducted.
  • User engagement was measured using the User Engagement Scale (UES) questionnaire.
  • Semi-structured interviews were used to gather qualitative data on user perceptions.

Main Results:

  • Participants reported higher engagement with the VEC compared to the HEC, specifically in focused attention and perceived usability.
  • Users found the VEC intuitive, easy to use, and convenient.
  • The VEC was perceived as a valuable training companion, reducing gym-related insecurities.

Conclusions:

  • Voice-enabled VECs can effectively enhance user engagement in physical exercise.
  • Future VEC designs should incorporate personality and embodiment for personalized user support.
  • Further research is needed to address the challenges and implications of designing engaging VEC systems.