동일 강도 걷기와 달리기 운동이 20대 마른비만 여성의 신체구성, 유산소성 능력 및 하지 근기능에 미치는 영향

초록

The purpose of this study was to investigate the effects of walking and running exercises for 8 weeks on body composition, aerobic ability and lower limb muscle function in women with normal weight obesity in their 20s. The subjects of this study were women with normal weight obesity over 30% who had normal body mass index after body composition test, and were divided into 9 walking group, 9 running group, and 9 control group. The exercise program was conducted three times a week for 8 weeks and 30 minutes per week for each time. The walking group was set to 4.8km/h, and the HRR(heart rate reserve) 60% using the gradient. The running group was set to 0% by the gradient and 60% by the speed. All measurement items were calculated by means of mean(M) and standard error(SD) and two-way repeated ANOVA was used to analyze the interaction between groups and periods according to intervention by dependent variables. The significance level of all tests was p < 0.05. The conclusions drawn through the above research procedures and methods are as follows. First, weight and BMI among body composition showed statistically significant difference in walking group with decrease. Body fat percentage was not significantly different in walking and running group but decreased. Second, the heart rate during the stable aerobic ability showed a statistically significant difference in the walking and running group, and the HRR60% METs showed a significant difference in the running group. The heart rate of recovery period was statistically significant with the increase in walking and running group. Third, the extensor muscle strength, flexor muscle strength, extensor muscle endurance and flexor muscle endurance among the lower limb muscle function increased in the walking and running group. In conclusion, these results suggest that walking and running exercise will have a positive effect on improving aerobic ability and lower limb muscle function as well as body composition for women with normal weight obesity with low activity.

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