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Article Dans Une Revue Gait & Posture Année : 2016

A new approach of the Star Excursion Balance Test to assess dynamic postural control in people complaining from chronic ankle instability

Résumé

The purpose of this study was to quantitatively and qualitatively assess dynamic balance with accuracy in individuals with chronic ankle instability (CAI). To this aim, a motion capture system was used while participants performed the Star Excursion Balance Test (SEBT). Reached distances for the 8 points of the star were automatically computed, thereby excluding any dependence to the experimenter. In addition, new relevant variables were also computed, such as absolute time needed to reach each distance, lower limb ranges of motion during unipodal stance, as well as absolute error of pointing. Velocity of the center of pressure and range of variation of ground reaction forces have also been assessed during the unipodal phase of the SEBT thanks to force plates. CAI group exhibited smaller reached distances and greater absolute error of pointing than the control group (p<0.05). Moreover, the ranges of motion of lower limbs joints, the velocity of the center of pressure and the range of variation of the ground reaction forces were all significantly smaller in the CAI group (p<0.05). These reduced quantitative and qualitative performances highlighted a lower dynamic postural control. The limited body movements and accelerations during the unipodal stance in the CAI group could highlight a protective strategy. The present findings could help clinicians to better understand the motor strategies used by CAI patients during dynamic balance and may guide the rehabilitation process
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Dates et versions

hal-03464297 , version 1 (03-12-2021)

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Citer

Raphaël Pionnier, Nicolas Decoufour, Franck Barbier, Christophe Popineau, Emilie Simoneau-Buessinger. A new approach of the Star Excursion Balance Test to assess dynamic postural control in people complaining from chronic ankle instability. Gait & Posture, 2016, 45, pp.97-102. ⟨10.1016/j.gaitpost.2016.01.013⟩. ⟨hal-03464297⟩
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