Visual Biofeedback and Postural Control: Exploring Potential Implicit Visual Integration.
Lucas Michaud1, Dominique Desjardins2, Alexandre Perreault3
1School of Human Kinetics, University of Ottawa, Ottawa, ON, Canada.
Journal of Motor Behavior
|July 2, 2025
Summary
Visual biofeedback (vBF) improves postural control by reducing body sway, even when participants are unaware of its purpose. This suggests implicit processing of visual feedback for balance.
Area of Science:
- Biomechanics
- Motor Control
- Human Factors
Background:
- Real-time visual biofeedback (vBF) enhances postural control by minimizing center of pressure (COP) displacement.
- The implicit mechanisms through which vBF influences postural stability are not fully understood.
Purpose of the Study:
- To investigate whether visual biofeedback (vBF) is implicitly utilized for postural control.
- To examine the effects of accurate versus erroneous COP feedback on postural stability.
Main Methods:
- Forty young adults stood as still as possible while receiving either accurate or delayed COP feedback.
- Participants were not informed about the purpose of the feedback.
- Post-experiment interviews identified participants aware of the feedback's nature.
Main Results:
- Both aware and unaware participants showed improved postural control with accurate vBF (reduced COP variability, smaller COP area, increased COP irregularity, higher sway frequencies).
- Erroneous vBF resulted in minimal changes to postural control.
- 15 out of 40 participants spontaneously recognized the feedback's nature.
Conclusions:
- Visual biofeedback (vBF) may be implicitly integrated to enhance postural control.
- Further research with refined methods is needed to confirm implicit processing and address classification challenges.
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