Adaptation effects in static postural control by providing simultaneous visual feedback of center of pressure and center of gravity

Takeda, Kazuyuki; Mani, Hiroki; Hasegawa, Naoya; Sato, Yuki; Tanaka, Shinji; Maejima, Hiroshi; Asaka, Tadayoshi

doi:10.1186/s40101-017-0147-5

Cited by 27 publications

(25 citation statements)

References 23 publications

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“…Despite the lack of an interaction effect, the effect size analysis evidenced a greater impact of real-time visual feedback in almost all variables. According to the present results, previous findings showed that VFT was effective in enhancing postural control [ 18 , 34 , 35 ]. Furthermore, a recent study showed significant improvements in postural sway following one session of real-time visual feedback practice in ~16 year old young karate athletes [ 19 ].…”

Section: Discussionsupporting

confidence: 81%

The Effects of Short-Term Visual Feedback Training on the Stability of the Roundhouse Kicking Technique in Young Karatekas

Vando

Longo

Cavaggioni

et al. 2021

IJERPH

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The aim of this study was to assess the efficacy of using real-time visual feedback (VF) during a one-week balance training intervention on postural sway parameters in young karatekas. Twenty-six young male karatekas (age = 14.0 ± 2.3 years) were randomly divided into two groups: real-time VF training (VFT; n = 14) and control (CTRL; n = 12). Their center of pressure (COP) displacement (path length, COPpl; distance from origin, COPod) was assessed pre- and post-training on a Wii Balance Board platform in two positions (Flex: knee of the supporting leg slightly bent, maximum hip and leg flexion of the other leg; Kick: knee of the supporting leg slightly bent, mawashi-geri posture for the kicking leg). Both groups trained twice a day for seven days, performing a one-legged stance on the non-dominant limb in the Kick position. During the training, VFT received real-time VF of COP displacement, while CTRL looked at a fixed point. No interaction effect was found (p > 0.05). VFT exhibited greater changes pre- and post-training in Flex COPpl (−25.2%, g = 1.5), Kick COPpl (−24.1%, g = 1.3), and Kick COPod (−44.1%, g = 1.0) compared to CTRL (−0.9–−13.0%, g-range: 0.1–0.7). It is possible that superimposing real-time VF to a week-long balance training intervention could induce a greater sport-specific balance-training effect in young karatekas.

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Section: Discussionsupporting

confidence: 81%

The Effects of Short-Term Visual Feedback Training on the Stability of the Roundhouse Kicking Technique in Young Karatekas

Vando

Longo

Cavaggioni

et al. 2021

IJERPH

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“…However, in these studies subjects were instructed to focus on the movement around the ankle joint rather than the movement of the CoP, which might account for the inconsistent findings. It appears that the CoP movements are not simply the representations of the CoM but might also fulfill other sensory acquisition functions (Murnaghan et al, 2011 ; Takeda et al, 2017 ). Our results indicate that the healthy cohort performed standing with near-minimum variability, with the remaining variability probably resulting from the neuromuscular noise (Singh et al, 2012 ), and therefore do not support the hypothesis of flexible motor variability control by the HSMS.…”

Section: Discussionmentioning

confidence: 99%

Cortical Contribution to Linear, Non-linear and Frequency Components of Motor Variability Control during Standing

Ignasiak

Habermacher

Taylor

et al. 2017

Front. Hum. Neurosci.

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Motor variability is an inherent feature of all human movements and reflects the quality of functional task performance. Depending on the requirements of the motor task, the human sensory-motor system is thought to be able to flexibly govern the appropriate level of variability. However, it remains unclear which neurophysiological structures are responsible for the control of motor variability. In this study, we tested the contribution of cortical cognitive resources on the control of motor variability (in this case postural sway) using a dual-task paradigm and furthermore observed potential changes in control strategy by evaluating Ia-afferent integration (H-reflex). Twenty healthy subjects were instructed to stand relaxed on a force plate with eyes open and closed, as well as while trying to minimize sway magnitude and performing a “subtracting-sevens” cognitive task. In total 25 linear and non-linear parameters were used to evaluate postural sway, which were combined using a Principal Components procedure. Neurophysiological response of Ia-afferent reflex loop was quantified using the Hoffman reflex. In order to assess the contribution of the H-reflex on the sway outcome in the different standing conditions multiple mixed-model ANCOVAs were performed. The results suggest that subjects were unable to further minimize their sway, despite actively focusing to do so. The dual-task had a destabilizing effect on PS, which could partly (by 4%) be counter-balanced by increasing reliance on Ia-afferent information. The effect of the dual-task was larger than the protective mechanism of increasing Ia-afferent information. We, therefore, conclude that cortical structures, as compared to peripheral reflex loops, play a dominant role in the control of motor variability.

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“…It comprised of balance training for 30 min each (static standing for 30 s) at intervals of 1-2 days. In OLS, participants were instructed to stand on their dominant leg, while the non-supported leg was flexed at the knee with the plantar surface of the foot stabilized on the knee of the supporting leg [15]. In TS, the participants ' feet (on a line, heel-toe position) were placed on the center of the force plate [16].…”

Section: Methodsmentioning

confidence: 99%

Application of Real-Time Visual Feedback System in Balance Train-ing of the Center of Pressure with Smart Wearable Devices in Women: A Randomized Controlled Trial

Wang¹,

Wang²,

Liu³

et al. 2020

Preprint

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This study aims to explore the effect of real-time visual feedback (VF) information of the pres-sure of center (COP) provided by intelligent insoles on balance training in a one leg stance (OLS) and tandem stance (TS) posture. Thirty healthy female college students were randomly assigned to the visual feedback balance training group (VFT), non-visual feedback balance training group (NVFT), and control group (CG). The balance training includes: OLS, tandem Stance (dominant leg behind, TSDL), tandem stance (non-dominant leg behind, TSNDL). The training lasted 4 weeks, the training lasts 30 minutes at an interval of 1 days. There was a sig-nificant difference in the interaction effect between Groups*Times of the COP parameters (p<0.05) for OLS. There was no significant difference in the interaction effect between Groups*Times of the COP parameters (p>0.05) for TS. The main effect of the COP parameters was a significant difference in Times (p<0.05). The COP displacement, velocity, radius, and area in VFT significantly decreased after training (p < 0.05). Therefore, the visual feedback technology of intelligent auxiliary equipment during balance training can enhance the benefit of training. The use of smart wearable devices in OLS balance training may improve the visual and physical balance integration ability.

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Adaptation effects in static postural control by providing simultaneous visual feedback of center of pressure and center of gravity

Cited by 27 publications

References 23 publications

The Effects of Short-Term Visual Feedback Training on the Stability of the Roundhouse Kicking Technique in Young Karatekas

The Effects of Short-Term Visual Feedback Training on the Stability of the Roundhouse Kicking Technique in Young Karatekas

Cortical Contribution to Linear, Non-linear and Frequency Components of Motor Variability Control during Standing

Application of Real-Time Visual Feedback System in Balance Train-ing of the Center of Pressure with Smart Wearable Devices in Women: A Randomized Controlled Trial

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