Korean J Sports Med.  2018 Dec;36(4):207-213. 10.5763/kjsm.2018.36.4.207.

The Effects of Foot Position on Dynamic Stability during Squat in Female with Genu Varum

Affiliations
  • 1Diabetes Center, Eulji Hospital, Seoul, Korea.
  • 2Department of Physical Education, Chung-Ang University, Seoul, Korea. bolim@cau.ac.kr

Abstract

PURPOSE
The aim of this study was to investigate the effects of foot position on dynamic stability in female with genu varum.
METHODS
Eight females with genu varum participated in this study and performed the four squat exercise methods that foot position (−45°, 0°, +45°) and 0° squat with band. Center of pressure (COP; anterior-posterior, medial-lateral, traveled distance, ellipse area) and ground reaction force as dynamic stability were measured using footscan system. Multivariate analysis of variance and one-way repeated analysis of variance measurement with Tukey honestly significant difference were used to identify significant differences of foot angle (−45°, 0°, +45°) and 0° squat with band method.
RESULTS
In anterior-posterior COP displacement, −45° foot angle and 0° squat with band were significantly showed lower than +45° foot angle squat (p=0.006). Also, in COP traveled distance, 0° squat was significantly showed lower than +45° foot angle (p=0.019). During the descending phase, ground reaction force significantly showed in −45 foot angle was lower than other exercise methods.
CONCLUSION
The 0° squat with band exercise showed higher dynamic stability and +45° foot angle squat exercise showed lower dynamic stability in female with genu varum.

Keyword

Balance; Female; Genu varum; Pressure
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