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Computerized Dynamic Posturography for Postural Control Assessment in Patients with Intermittent Claudication
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Postural sway in volleyball players.

Valentina Agostini1, Emma Chiaramello, Lorenzo Canavese

  • 1Dipartimento di Elettronica e Telecomunicazioni, Politecnico di Torino, Torino, Italy. valentina.agostini@polito.it

Human Movement Science
|May 1, 2013
PubMed
Summary

Volleyball players exhibit distinct postural sway compared to non-athletes, particularly with eyes open, indicating unique sensory integration for balance. This finding may aid in assessing training programs and player selection.

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Area of Science:

  • Sports Science
  • Biomechanics
  • Human Physiology

Background:

  • Postural sway is crucial for maintaining balance during quiet stance.
  • Volleyball players rely on dynamic visual input and rapid reactions for performance.
  • Understanding sensory integration in athletes can inform training and talent identification.

Purpose of the Study:

  • To analyze and compare postural sway between volleyball players and non-athlete controls.
  • To investigate the role of visual input in the postural stability of athletes.
  • To explore potential differences based on player level (national vs. regional) and position (defensive vs. hitter).

Main Methods:

  • Measured center of pressure (CoP) in 46 volleyball players and 42 controls.
  • Assessed postural sway under 10 conditions (5 eyes open, 5 eyes closed).
  • Employed a multivariate data analysis approach.

Main Results:

  • Volleyball players demonstrated larger CoP ellipses, suggesting altered sensory integration.
  • Group differences in postural sway were significant with eyes open but not with eyes closed.
  • National and defensive players showed greater differences from controls compared to regional and hitter players, respectively.

Conclusions:

  • Volleyball players utilize a different sensory integration strategy for postural control.
  • Visual feedback significantly influences postural sway differences between athletes and controls.
  • The findings support the use of this protocol for evaluating training efficacy and player selection.