These are high functioning patients already, stage IV and V and ability to walk 30 minutes at a time. I have no understanding of real-time visual feedback. In fact I would assume that the participants are using the Hawthorne effect to please the researchers since they would know which group they were in.
Use of real-time visual feedback during overground walking training on gait symmetry and velocity in patients with post-stroke hemiparesis: randomized controlled, single-blind study.
Abstract
This
study aimed to determine the efficacy of using real-time visual
feedback during overground walking training to improve walking function
in patients with post-stroke hemiparesis. Twenty-four patients with
post-stroke hemiparesis who were able to walk independently under less
impact of synergy pattern on the affected lower limbs (Brunnstrom stage
IV or V) were randomly assigned to either the experimental group or the
control group. All subjects performed overground walking for 30 min,
three times a week for 6 weeks, with real-time visual feedback (weight
load to the affected lower limb) provided during training for subjects
in the experimental group. Outcome measures comprised the timed
up-and-go test and gait parameters (step length, stride length, single
and double support times, step and stride length ratios, and single
support time ratio). In between-group comparison, the changes between
pre-test and post-test scores in all parameters were significantly
greater in the experimental group than in the control group
(P < 0.05), except for double support time and step length ratio.
Furthermore, post-test values of all parameters were significantly more
improved in the experimental group than in the control group
(P < 0.05). Our findings suggest that real-time visual feedback may
be an advantageous therapeutic adjunct to reinforce the effects of
overground walking training in patients with post-stroke hemiparesis.
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