Increasing Visual Biofeedback Scale Changes Postural Control Complexity

Visual biofeedback (vFB) during quiet stance has been shown to improve postural control. While this improvement has been quantified by a reduction in the center of pressure (COP) sway, the effect on COP complexity remains unexplored. As such, 20 young adults (12 females; aged 23.63 ± 3.17 years) wer...

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Veröffentlicht in:Applied psychophysiology and biofeedback 2024-06, Vol.49 (2), p.291-299
Hauptverfasser: Michaud, Lucas, Laniel, Fanie, Lajoie, Yves
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Laniel, Fanie
Lajoie, Yves
description Visual biofeedback (vFB) during quiet stance has been shown to improve postural control. While this improvement has been quantified by a reduction in the center of pressure (COP) sway, the effect on COP complexity remains unexplored. As such, 20 young adults (12 females; aged 23.63 ± 3.17 years) were asked to remain in a static upright posture under different visual biofeedback magnitude (no feedback [NoFB], magnified by 1 [vFB1], magnified by 5 [vBF5] and magnified by 10 [vBF10]). In addition to confirming, through traditional COP variables (i.e. standard deviation, mean velocity, sway area), that vFB scaling improved postural control, results also suggested changes in COP complexity. Specifically, sample entropy and wavelet analysis showed that increasing the vFB scale from 1:1 to 1:5 and 1:10 led to a more irregular COP and a shift toward higher frequency. Together, and particularly from a complexity standpoint, these findings provided additional understandings of how vFB and vFB scaling improved postural control.
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subjects Adult
Behavioral Science and Psychology
Biofeedback
Biofeedback, Psychology - methods
Feedback
Feedback, Sensory - physiology
Female
Health Psychology
Humans
Male
Postural Balance - physiology
Posture
Posture - physiology
Psychology
Psychotherapy and Counseling
Public Health
Young Adult
Young adults
title Increasing Visual Biofeedback Scale Changes Postural Control Complexity
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