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http://dx.doi.org/10.5103/KJSB.2020.30.3.247

Effects of Real-time Visual Feedback Gait Training on Gait Stability in Older Adults  

Byun, Kyungseok (Vector Bio, Inc.)
Han, Sooji (Department of Sport Biomechanics, Korea National Sport University)
Bhang, Dawon (School of Information, Rochester Institute of Technology)
Seo, Hyundam (Graduate School of Engineering & Technology, Korea University)
Lee, Hyo Keun (Vector Bio, Inc.)
Publication Information
Korean Journal of Applied Biomechanics / v.30, no.3, 2020 , pp. 247-253 More about this Journal
Abstract
Objective: This study aimed to examine the effects of real-time visual feedback gait training on gait stability in older adults. Method: Twelve older adults participated in this study, being divided into 2 groups including a) visual feedback (VF) and b) non-visual feedback (NVF) groups. For 4 weeks, VF performed a treadmill walking training with real-time visual feedback about their postural information while NVF performed a normal treadmill walking training. For evaluations of gait stability, kinematic data of 15-minute treadmill walking were collected from depth-based motion capture system (30 Hz, exbody, Korea). Given that step lengths in both right and left sides were determined based on kinematic data, three variables including step difference, coefficient of variation, approximate entropy were calculated to evaluate gait symmetry, variability and complexity, respectively. Results: For research findings, VF exhibited significant improvements in gait stability after 4-week training in comparison to NVF, particularly in gait symmetry and complexity measures. However, greater improvement in gait variability was observed in NVF than VF. Conclusion: Given that visual feedback walking gives potential effectiveness on gait stability in older adults, gait training with visual feedback may be a robust therapeutic intervention in people with gait disturbances like instability or falls.
Keywords
Visual feedback; Gait stability; Step symmetry; Step variability; Step complexity; Older adults;
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