Increasing Visual Biofeedback Scale Changes Postural Control Complexity

Michaud, Lucas; Laniel, Fanie; Lajoie, Yves

doi:10.1007/s10484-023-09619-w

Cited by 2 publications

(11 citation statements)

References 44 publications

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“…Based on Wulf's constrained action hypothesis (Wulf, 2013), external focus of attention in a postural task is believed to lead to postural control being more automatic, that is a more e cient control mainly based on proprioception, cerebellum-driven and re ex-like St-Amant et al, 2020, 2022. Supporting this automatic explanation is a shift toward a more irregular sway St-Amant et al, 2020, 2022, also observed during vFB by some studies (Kręcisz & Kuczyński, 2018;Lakhani & Mans eld, 2015;Michaud et al, 2024).…”

Section: Introductionmentioning

confidence: 94%

“…The apparatus used in this experiment was the same as the one described by Michaud et al (2024). A force platform (ORG-6-100, Watertown, NY, USA) was used to measure the COP position at 100 Hz.…”

Section: Apparatusmentioning

confidence: 99%

“…The regularity of the signal was measured using the sample entropy (SampEn) method from Richman and Moorman (Richman & Moorman, 2000). To align with previous publications (Michaud et al, 2024), a value of m = 2 and r = 0.2*SD was used in the formula. The COP frequency was assessed using a wavelet transform.…”

Section: Real and Erroneous Vfbmentioning

confidence: 99%

“…For the wavelet transform, using Quek et al (2014) procedure, the signal was rstly divided using a 12-level Symlet-8 wavelet. As done in our previous publication (Michaud et al, 2024), the 12 levels obtained from this rst step were then put together to create 4 distinct frequency bands: Moderate (1.56 to 6.25 Hz), Low (0.39 to 1.56 Hz), Very Low (0.10 to 0.39 Hz), and Ultra Low (under 0.10 Hz). Previous studies have attributed the moderate band to proprioceptive contributions, the very low band to cerebellum control, the Low band to the vestibular contribution and the ultra-low band to the visual contribution of postural sway (Michaud et Although some overlap in sensory system contribution across bands could exist (Quek et al, 2018), higher frequencies are generally associated with proprioceptive control and lower frequencies with visual control.…”

Section: Real and Erroneous Vfbmentioning

confidence: 99%

“…As the visual information improves, the CNS could rely more on visual input for postural control (Horak, 2006). However, few studies have found a shift toward higher COP frequency during vFB (Kręcisz & Kuczyński, 2018;Krizková et al, 1993;Michaud et al, 2024) which would normally indicate an increased reliance on proprioceptive information rather than visual information (Berthoz et al, 1979;Doumas & Krampe, 2010). An alternative explanation, supported by this shift in COP frequency, is that vFB promotes a more automatic control St-Amant et al, 2020, 2022.…”

Section: Introductionmentioning

confidence: 99%

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Visual Biofeedback and Postural Control: Exploring Potential Unconscious Visual Integration

Michaud,

Desjardins,

Perrault

et al. 2024

Preprint

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Visual biofeedback (vFB) is known to improve postural control by reducing the center of pressure (COP) sway and its complexity. However, the underlying mechanisms behind these changes are not fully understood. This study investigates a potential unconscious utilization of visual biofeedback (vFB) for postural control by providing participants with both accurate and erroneous feedback (i.e., feedback not congruent with actual body sway) without disclosing the nature of the visual information. Forty young adults were asked to stand as still as possible and were exposed to both accurate and erroneous vFB through a monitor, without explanations regarding the feedback other than that it could or could not help them stand as still as possible. Despite this lack of information, 15 out of 40 participants reported being aware of the vFB nature. Results indicated that both aware and unaware participants exhibited improved postural control under accurate vFB conditions (i.e. reduced COP variability and area, increased COP irregularity, and a shift toward higher sway frequencies). Conversely, small impairments were observed during erroneous vFB. Although the effect on unaware participants was less, these findings highlight a possible unconscious integration of the visual feedback, no matter its relevance.

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Section: Introductionmentioning

confidence: 94%

Section: Apparatusmentioning

confidence: 99%

Section: Real and Erroneous Vfbmentioning

confidence: 99%

Section: Real and Erroneous Vfbmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Visual Biofeedback and Postural Control: Exploring Potential Unconscious Visual Integration

Michaud,

Desjardins,

Perrault

et al. 2024

Preprint

Self Cite

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Biofeedback-Based Proprioceptive Training to Improve Functional Prerequisites of Dragon Boating in Breast Cancer Survivors

Carretti,

Dabraio,

Manetti

et al. 2024

EJIHPE

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Breast cancer (BC)-related sequelae drastically impact the psychophysical functioning and quality of life of affected women. Adapted physical activity (APA) has proved to effectively counteract these impairments in a non-medicalized framework. In particular, dragon boats are able to promote body functionality, social interaction, and quality of life in BC survivors, but the literature on specific motor gestures is scarce and practice is still based more on a re-educative perspective than a performative one. In this context, the present longitudinal study investigated the benefits of an adapted biofeedback-based sensorimotor training intervention on upper body functionality in a team of dragon ladies. The 8-week intervention was conceived as integrated dry workout sessions led by an APA kinesiologist and applied a novel sensorized proprioceptive device, such as a Libra board. Post-protocol evaluation revealed a significant improvement in bilateral upper limb mobility, core endurance, and trunk stability along with a distress decrease and quality of life enhancement through validated assessment tools. Our findings suggest that integrating biofeedback-based workout sessions can effectively promote upper body functionality in BC survivors practicing dragon boating. Furthermore, our innovative approach could help spread methodological hints able to boost exercise adherence in this target population, thus counteracting cancer recurrence while promoting overall well-being.

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Increasing Visual Biofeedback Scale Changes Postural Control Complexity

Cited by 2 publications

References 44 publications

Visual Biofeedback and Postural Control: Exploring Potential Unconscious Visual Integration

Visual Biofeedback and Postural Control: Exploring Potential Unconscious Visual Integration

Biofeedback-Based Proprioceptive Training to Improve Functional Prerequisites of Dragon Boating in Breast Cancer Survivors

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