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8주간 고강도 간헐적 운동이 스키학생의 체력 및 근 손상지표와 DNA 손상에 미치는 영향

린 천홍 (군산대학교 대학원)

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The purpose of this study was to compare and analyze the effects of high-intensity intermittent exercise for 8 weeks on physical fitness, muscle damage index, and DNA damage index by dividing into two groups of male and female for skiing major college students. The following conclusions were obtaine...
The purpose of this study was to compare and analyze the effects of high-intensity intermittent exercise for 8 weeks on physical fitness, muscle damage index, and DNA damage index by dividing into two groups of male and female for skiing major college students. The following conclusions were obtained. 1. Change in physical fitness 1) Changes in body weight and lean body mass were found to be different in the two groups, and were found to be more effective in the female group. 2) The change in body fat mass was found to be decreased in both groups, but there was no interaction effect. 3) Changes in power, balance and agility were found to be different in the two groups, while power was more effective in the male group, balance and agility were more effective in the female group. 4) In muscular strength and muscular endurance, back strength and sit-up showed differences between groups, and were found to be more effective in the female group. On the other hand, the grip strength and push-up increase in both groups, but there was no difference between groups. 2. Changes in muscle damage indicators (CK, LDH) 1) The changes in CK by measurement period after training was different in the two groups at rest and 60 minutes after recovery, and decreased more effectively in the female group at rest and in the male group after 60 minutes of recovery. On the other hand, there was no difference between the two groups immediately after exercise and 120 minutes after recovery. 2) The changes in LDH by measurement period after training was found to decrease in the two groups, but there was no difference between groups. 3. Changes in DNA damage (lymph DNA 8-OHdG, urine 8-OHdG) 1) The changes in lymph DNA 8-OHdG by measurement period after training was different in the two groups at rest and 60 minutes after recovery. At rest, it decreased in both groups, and decreased more effectively in the female group. On the other hand, after 60 minutes of recovery, it was found to decrease significantly only in the male group. There was no difference between the two groups immediately after exercise and 120 minutes after recovery. 2) The changes in lymph DNA 8-OHdG by measurement period after training was significantly different in the two groups only after 60 minutes of recovery, and decreased more effectively in the female group. In conclusion, 8 weeks of high-intensity intermittent exercise had positive effects of physical fitness, serum muscle damage, blood and urine DNA damage, including body composition of students majoring in skiing, and there were some differences in sex. In this way, the reduction of muscle damage and DNA damage after training is seen as a result of not only adapting to exercise but also increasing the defences ability against stress due to physical fitness improvement following 8 weeks of training. Through these results, it is thought that the high-intensity intermittent exercise program can be an effective training program for improving the performance of students learning skiing and even athletes.