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Related Concept Videos

Randomized Experiments01:13

Randomized Experiments

The randomization process involves assigning study participants randomly to experimental or control groups based on their probability of being equally assigned. Randomization is meant to eliminate selection bias and balance known and unknown confounding factors so that the control group is similar to the treatment group as much as possible. A computer program and a random number generator can be used to assign participants to groups in a way that minimizes bias.
Simple randomization
Simple...

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Related Experiment Video

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Mobile Game-based Virtual Reality Program for Upper Extremity Stroke Rehabilitation
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A Randomized Control Trial of a Virtually Delivered Program for Increasing Upper Limb Activity After Stroke.

Lisa A Simpson1, Ruth Barclay2, Mark T Bayley3

  • 1Department of Physical Therapy, University of British Columbia, Vancouver, BC, Canada.

Neurorehabilitation and Neural Repair
|December 27, 2024
PubMed
Summary

A virtual upper limb program, including a wearable device for reach-to-grasp feedback, successfully increased arm activity in stroke survivors. This innovative approach offers a promising avenue for enhancing post-stroke recovery and daily function.

Keywords:
activity monitorrandomized control trialstroke rehabilitationtelerehabilitationupper extremity

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Area of Science:

  • Neurorehabilitation
  • Stroke Recovery
  • Digital Health Interventions

Background:

  • Limited upper limb activity post-stroke hinders functional recovery.
  • Virtual rehabilitation programs offer accessible solutions for community-dwelling individuals.
  • Wearable technology can provide objective feedback on motor performance.

Purpose of the Study:

  • To evaluate the efficacy of a virtually delivered upper limb program (Virtual Arm Boot Camp [V-ABC]) in increasing arm activity after stroke.
  • To assess the impact of V-ABC, incorporating a wearable device with reach-to-grasp feedback, on upper limb function and quality of life.
  • To determine if V-ABC can enhance real-world upper limb engagement in individuals less than one year post-stroke.

Main Methods:

  • A parallel-group, assessor-blinded, randomized controlled trial (NCT04232163) involving 73 community-living participants with residual arm limitations.
  • Participants were randomized to either the V-ABC group (home exercise, wearable feedback, virtual therapist sessions) or a waitlist control group.
  • The primary outcome was average daily reach-to-grasp counts measured at 4 weeks post-baseline.

Main Results:

  • The V-ABC group showed a statistically significant increase in average daily reach-to-grasp counts compared to the control group (mean difference = 368, P = 0.046).
  • Secondary outcomes, including upper limb function and self-reported use, were also positively impacted.
  • Tertiary analysis indicated positive within-subject changes from pre-treatment to follow-up assessments.

Conclusions:

  • A virtually delivered upper limb program, combining exercise, wearable device feedback, and therapist support, effectively increases real-world upper limb activity post-stroke.
  • This intervention demonstrates potential for improving functional outcomes and promoting greater arm engagement in stroke survivors.
  • Virtual and technology-assisted rehabilitation represents a viable and effective strategy for stroke recovery.