본 연구의 목적은 12주간의 하타요가 수련이 여고생의 자세제어 능력 변화에 미치는 영향을 규명하는 것이다. 27명(요가수련그룹 15명, 비교그룹 12명)의 건강한 여고생을 대상으로 하였으며 12주간의 운동 프로그램 전 후에 3차원 동작 측정 시스템과 지면 반력 측정 시스템을 이용하여 COP, Rambling(RM), Trembling(TM)의 변화와 시상면의 자세 변화를 측정 하였다. 산출된 자료는 SPSS 21.0을 이용하여 그룹간 사전 값 차이를 검증에는 독립표본 t-검증, 12주간 요가 수련 후 그룹 내 시기에 따른 변화 검증은 대응표본 t-검증, 요가 수련 전, 후의 시기와 그룹의 상호작용을 검증하기 위해서는 이원배치반복분산분석(two-way rm ANOVA)을 실시하였다. 또한, 통계적 유의수준은 a=.05로 설정 하였다. 분석결과 요가 수련 그룹에서 COP의 전후 이동 범위가 줄어들었고, RM과 TM에도 긍정적 변화가 있었다. 시상면의 자세 정렬에는 요가 수련 후 목 분절의 전방 각도가 줄어들었다. 이는 하타요가 수련을 통해 인지된 자세조절의 메커니즘이 발현된 결과이며, 하타요가 수련은 여고생의 자세제어 능력 변화에 긍정적 효과가 있는 것으로 판단된다.

The purpose of this study was to examine the influence 12 weeks of Hatha yoga exercise has upon changes in postural control ability of high school girls. The research subjects were 27 high school girls (yoga group: 15, control group: 12). Changes that took place after yoga exercise were comparatively analyzed after having them train Hatha yoga for 12 weeks. The research variables that were measured were the moving range of COP in static postural balance, Rambling & Trembling in the moving range of COP, and postural change in the sagittal plane. The mean and the standard deviation(SD) were calculated on each measurement item by using the SPSS Ver 21.0 statistical program. To verify difference in pre-value between groups, an independent t-test was carried out. The verification of change according to time within the group after 12 weeks of yoga exercise was conducted in a paired t-test. To inspect interaction by time and group before and after yoga exercise, two-way repeated measures ANOVA was implemented. As a result, the moving distance of the pre and post direction in the moving range of COP was reduced. Rambling and Trembling in the pre-and-post direction significantly decreased. And in postural change of the sagittal plane, there was significant interaction between two groups in the neck and thigh parts. It was thought that the 12 weeks hatha yoga exercise has positive influence upon improving the postural control mechanism in female high school students and has an effect even on change in the postural control ability of an individual.