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Research Objectives
To demonstrate the additive effects of augmented feedback, virtual reality (VR), and
exergaming on motivation and walking speed performance.
Design
Within-subjects, repeated measures design.
Setting
Spain Rehabilitation Center, University of Alabama at Birmingham.
Participants
Individuals with hemiparesis who are in the chronic phase of recovery from stroke
(>6 months) whom are able to follow instructions, and walk independently without needing
physical assistance for at least three minutes.
Interventions
Participants will be asked to walk as fast and safely as they can while on a robotic
in three conditions: (1) with simple visual augmented feedback without a VR interface,
(2) with a basic VR interface and (3) with a VR exergame.
Main Outcome Measures
30-seconds fast walking speed was measured on a robotic treadmill (KineAssist-MX®).
Intrinsic motivation was measured after each walking condition using the Intrinsic
Motivation Inventory (IMI).
Results
In this preliminary analysis (n=4 participants; age range: 35-70 years;) participants
had baseline fast walking speeds between 0.50-1.48 m/s. The change in walking speeds,
with and without performance feedback, were as follows: 0.19-0.49 m/s for augmented
feedback, 0.22-0.45 m/s for basic VR, and 0.16-0.42 m/s for VR exergame. IMI-Interest
and Enjoyment Subscale scores ranged from: 5.9-6.9 after augmented feedback, 5.4-6.9
after basic VR, and 6.4-6.7 after VR exergame.
Conclusions
This preliminary report suggests that individuals’ post-stroke can walk faster when
they are provided with performance feedback compared to their fast walking speed without
receiving any performance feedback. In terms of intrinsic motivation, no trend was
observed across participants nor conditions indicating that intrinsic motivation is
about the same level when walking with different types of augmented feedback.
Author(s) Disclosures
David Brown declares the following financial interests and personal relationships
which may be considered as potential competing interests: He is a named inventor on
the intellectual property associated with the KineAssist and does receive a share
of royalties for any sales of this robotic treadmill. Saleh Alhirsan and Carmen Capo-Lugo
do not have any conflicts of interests to declare.
Keywords
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Copyright
© 2022 Published by Elsevier Inc.
