불안정한 바닥위에서 발목각도가기립균형에 미치는 영향

Abstract

The purpose of this study was to compare the balance ability at different foot anglewith KA T 2000 (Breg, Inc., Vista, CA. 1994). Forty-nine (male 24, female 25) normalsubjects participated in this study. All subjects were assessed under two conditions. One was eye-opened condition and the other one was eye-closed one in 3 psi surfacecondition. All subjects were tested at different foot angle that were toe-in 250 , 45。’toe-out 250 and 450• The subject attempted to keep the platform as stable as possible with eyes c!osed and with eyes opened for every 20 seconds. The starting positionwas that subject crossed their arms across chest and flexed knees slightly. Theresults of each test were showed by a score on screen, which meant balance index. These collected data were analyzed by using oneway ANOV A, Scheffe test, and t-testThe results of this study were as follows:1. When the foot angle were changed, balance index was the lowest in toes-out 25 。condition and greatest with toes-in 450 with eyes opened and with eyes c!osed. There were statistically significant difference with eyes opened and with eyes closed(p<O.05). 2. There was statistically significant difference in balance index according to visualcondition and the balance index tested wÏth eyes closed was higher than with eyesc!osed(p<O.05). 3. There was statistically significant difference in balance index by gender(p<0.05).