earticle

영어

The purpose of this study was to evaluate the effect of jazz dance on the bone markers and energy metabolic regulation hormones. The subjects for this study were 20 females and divided into 2 groups: jazz dance group(EG, n＝10) and control group(CG, n＝10) for 12 weeks. The jazz dance programs was composed of warm up(HRmax 40-50%) 15mins, cool down(HRmax 30-40%) 10mins and main exercise(1-6weeks; HRmax 61∼70% 15mins and HRmax 71∼80% 20mins total time 60mins, 7-12weeks HRmax 61∼70% 30mins and HRmax 71∼80% 35mins total time 90 mins) 3 times a week. And the change of bone markers(osteocalcine(OC), dexiripyridenoline(DPD)) and energy metabolic regulation hormones(growth hormone(GH), insulin, glucagone, cortisol, epinephrine had been measured before and post exercise 6 weeks and 12 weeks respectively. Statistical techniques for data analysis were repeated measure ANOVA to determine the difference between groups, post hoc test was Duncan’ test. The 5% level of significance was utilized as the critical level for acceptance of hypotheses for the study. The following results were obtained from this study; First, the change of bone markers: The change of OC(p<.05) in the jazz dance group was increased after 12 weeks of exercise. And the change of OC in the EG was statistical significant higher after 12weeks of exercise and significant difference between the groups(p<.05). The change of DPD(p<.05) in the EG was statistical significant decreased after 12 weeks of exercise. In the EG was statistical significant lower after 12weeks of exercise and significant difference between the groups(p<.05). Second, the change of energy metabolic regulation hormones: The change of GH(p<.05), epinephrine and E2 in the EG was increased after 12 weeks of exercise. And there was no significant difference between the groups. The change of insulin and cortisol(p<.05) in the EG was decreased after 12 weeks of exercise. The change of insulin and cortisol in the EG was statistical significant lower after 12weeks of exercise and significant difference between the groups(p<.05).