The Effect of Task-Oriented Sensorimotor Exercise on Visual Feedback Control of Body Position and Body Balance

• Authors: Erika Zemková , Dušan Hamar
• Languages of publication: EN

Abstracts

EN

Purpose. The study evaluates the effect of task-oriented sensorimotor exercise on visual feedback control of body position and parameters of static and dynamic balance. Basic procedures. A group of 20 PE students (aged 21.5 ± 1.6 years, height 178.2 ± 10.6 cm, and weight 74.5 ± 11.8 kg) performed task-oriented sensorimotor exercise (20 sets of 60 stimuli with 2 min rest in-between). They had to hit the target randomly appearing in one of the corners of the screen by horizontal shifting of COM in appropriate direction. Response time, distance, and velocity of COP trajectory were registered during standing on unstable spring-supported platform equipped with PC system for feedback monitoring of COM movement. Postural stability was evaluated under both static and dynamic conditions (wobble board). The COP velocity was registered at 100 Hz by means of the posturography system FiTRO Sway Check based on dynamometric platform. Main findings. Mean response time significantly (p ≤ 0.01) decreased from 3100.5 ± 1019.8 ms to 1745.8 ± 584.5 ms. Substantial share of the improvements took place during initial 6 trials. At the same time also mean distance of COP movement significantly (p ≤ 0.05) decreased from 0.767 ± 0.340 m to 0.492 ± 0.190 m within initial 12 trials and then slightly increased up to 0.591 ± 0.247 m. On the other hand, mean COP velocity significantly (p ≤ 0.05) increased from 0.285 ± 0.142 m/s to 0.395 ± 0.182 m/s. However, there were no changes in the COP velocity registered in static (from 12.4 ± 1.8 mm/s to 11.9 ± 1.5 mm/s) and dynamic conditions (from 108.0 ± 22.3 mm/s to 101.3 ± 18.1 mm/s). Conclusions. Task-oriented sensorimotor exercise acutely enhances visual feedback control of body position but not static and dynamic balance.

Keywords

EN

acute effect; static and dynamic balance; task-oriented sensorimotor exercise; visual feedback control of body position

• Publisher: De Gruyter Open
• Journal: Human Movement
• Year: 2010
• Volume: 11
• Issue: 2
• Pages: 119-123

Dates

published

1 - 12 - 2010

online

21 - 12 - 2010

Contributors

author

Erika Zemková

• Department of Sports Kinanthropology, Faculty of Physical Education and Sport, Comenius University, Bratislava, Slovakia

author

Dušan Hamar

• Department of Sports Kinanthropology, Faculty of Physical Education and Sport, Comenius University, Bratislava, Slovakia

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Identifiers

DOI

10.2478/v10038-010-0013-3