재즈댄스 프로그램이 여학생의신체질량지수와 체력수준에 미치는 영향

Abstract

The purpose of this study is to present the preliminary data for obesity management and physical ability improvement through investigating the effect of 12-week after-school jazz dance program on BMI and the level of physical ability in middle school female students. Thirty subjects were divided into two groups: exercise group(E.G., n=15) and control group(C.G., n=15). The subjects in E.G. had done jazz dance 50 min./day, 3 times/week for 12 weeks. We measured BMI and physical ability(muscle endurance, cardiopulmonary endurance, flexibility, and speed) two times: pre event(0 week) and post event(12 week) measurement. For the data analysis, paired t test and independent t test of SPSS ver. 18.0 were used to analyze the change between pre event and post event measurement in each group and the difference between groups in each measurement, respectively. The significant level was α=.05. As a result, BMI, cardiopulmonary endurance, and speed were significantly different between pre event and post event measurement(p<.001) in E.G. Muscle endurance showed the significant difference between pre event and post event measurement(p<.001) only in E.G. and between two groups at post event measurement(p<.05). Flexibility was significantly different between pre event and post event measurement(p<.01) only in E.G. and between two groups at post event measurement(p<.05). In summary, we knew that 12-week after-school jazz dance program decreases BMI and affects positive change in physical ability in middle school female students. In further studies, the combination of quantitative methods of including a lot more subjects and various jazz dance program and qualitative methods of using varying parameters will be necessary.

Kee words: Jazz dance, After-school activity, Middle school female students, BMI, Physical ability