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http://dx.doi.org/10.12674/ptk.2015.22.1.030

The Relationship Between Passive Ankle Dorsiflexion With a Non-Weight Bearing Condition and the Performance of the Dynamic Balance Test  

Park, Jun-Sang (Health Care Center, Labor Relations, Korea Delphi Automotive Systems Corporation)
Yang, No-Yul (Dept. of Research and Development, With Rehabilitation & Assistive Technology)
Kwon, Oh-Yun (Dept. of Physical Therapy, College of Health Science, Yonsei University)
Publication Information
Physical Therapy Korea / v.22, no.1, 2015 , pp. 30-36 More about this Journal
Abstract
The purpose of this study was to examine the relationships between the ankle dorsiflexion passive range of motion (DF PROM) under a non-weight bearing condition and the normalized reach distance in three directions of the Y-Balance Test (YBT). Sixty-one healthy adults (32 males and 29 females, age: $23.0{\pm}3.0$ years, height: $169.3{\pm}8.9cm$, weight: $61.9{\pm}5.4kg$) participated in this study. The ankle DF PROM was measured using a goniometer. To assess dynamic balance, all subjects performed three trials to determine the maximum lower extremity reach in the anterior, posteromedial, and posterolateral directions of the YBT. The relationship between the ankle DF PROM and both the normalized reach distance in each direction and the composite score of the YBT were analyzed using the Pearson correlation. Only the normalized reach distance in the anterior direction of the YBT was significantly related to the ankle DF PROM measured under a non-weight bearing condition (r=.50, p<.001). Neither the normalized reach distances in the posterior directions nor the composite score of the YBT were significantly correlated with the ankle DF PROM measured under a non-weight bearing condition. These findings suggest that ankle DF PROM does not affect the overall dynamic balance of the lower extremity, with only the anterior dynamic balance affected among the three directions.
Keywords
Ankle stability; Dynamic balance; Excursion balance test; Postural control;
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