이 연구는 전신 전기근자극 훈련이 비만 수준에 따른 여성의 신체조성 및 심박변이도에 미치는 영향을 분석하는 것이다. 연구 대상은 폐경 전 여성으로 BMI<25는 BMI-N(n=15), BMI=25~29.9는 BMI-1(n=16), BMI>30은 BMI-2(n=9) 집단으로 분류한 후, 12주간 주당 3회의 전신 전기근자극 훈련을 실시하였다. 실험처치 전·후 신체조성과 심박변이도를 측정하여 반복 이원 변량분석과 대응표본 t-검정을 실시하였고, 사후검증은 Tukey의 방법을 사용하였다. 유의수준(α)은 0.5로 설정, 다음과 같은 결과를 얻었다. 첫째, Weight, BMI, FFM, FM은 BMI-2 집단이 가장 많이 감소하였고, BMI-1, BMI-N 집단 순으로 감소하였다. %BF와 VF는 BMI-2 집단이 가장 많이 감소하였다. 둘째, BPM은 모든 집단에서 차이가 나타났으며, BMI-2 집단이 가장 크게 감소하였다. SDNN과 RMSSD 는 각 집단에서 차이가 나타났으며, 비만 수준에 따른 차이는 없었다. LF, HF 및 LF/HF 비율은 차이가 없었다. 결론적으로, 전신 전기근자극 훈련은 비만수준이 높은 여성들의 체구성 변화와 심장 순환계에 긍정적 효과를 미치는 운동요법이 될 수 있음을 확인하였다.
The purpose of this study was to determine the effects of 12 weeks of WB-EMS training on body composition and heart rate variability based on BMI Level in Women. The subjects of the study were premenopausal women, and they were classified into the BMI-N(n=15) group for BMI<25, the BMI-1(n=16) group for BMI=25~29.9, and the BMI-2(n=9) group for BMI>30. And then, WB-EMS training was performed of 3 times a week for 12 weeks. Body composition and HRV were measured before and after the participation in exercise, which were subjected to a repeated-measures two-way ANOVA. In the case of a significant interaction between time and group, paired sample t-tests were conducted for a post-hoc analysis within each subject group. Tukey's method was used for post-hoc testing of differences between groups, and the significance level was set at 0.5. The results were as follows; First, The effect of WB-EMS training was found in all variables of body composition. In particular, Weight, BMI, FFM, and FM decreased the most in the BMI-2 group, followed by the BMI-1 and BMI-N groups. %BF and VF decreased the most in the BMI-2 group. Second, There was a difference in BPM in all groups, and the BMI-2 group showed the greatest decrease. There were differences in SDNN and RMSSD for each group, and there was no difference according to obesity level. There was no difference in LF, HF, and LF/HF ratio.
In conclusion, it was confirmed that WB-EMS training can be an exercise therapy that has a positive effect on the body composition change and cardiac circulatory system in women with a high level of obesity.