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유산소성 운동이 노인들의 신체조성과 등속성 슬관절 근력 및 요부근력에 미치는 영향
한종우(Jong Woo Han),이상석(Sang Sug Lee),송분도(Bun Do Song),지용석(Yong Suk Ji),김난수(Nan Su Kim),서경호(Kyeong Ho Seo) 한국사회체육학회 2000 한국사회체육학회지 Vol.13 No.-
This study was designed to investigate the effect of a year aerobic exercise training on body composition, isokinetic knee and trunk muscular strength of elders. The subjects for this study were eighty healthy elderly people who were members of seniors tower at Song-Do Hospital and didn`t have any history of cardiorepiratory disease. Subjects have been trained three times a week for a year. The exercise program was made up of a 15-minute warm-up, cool-down. Stretching was performed every eight minutes for the prevention of injuries which could occur during the main exercise and quick recovery of the used muscle. Aerobic training was performed for each 15-20minutes using the treadmill and cycle ergometer at the intensity of 50-70% HRmax. For the data, all the measurements were represented by mean and standard deviation using SAS package(version 6.12). Statistical techniques for data analysis were paired t-test to determine the difference between pre and post exercise program. The 5% level of significance was used as the critical level for acceptance of hypotheses for the study. The following results were obtained from this study. 1. There is a statistically significant difference in the VO_2max, fat mass, lean mass and %body fat both old men and women after a year training. 2. There is not a statistically significant difference in the weight, WHR and thigh circumference both old men and women after a year training. 3. There is a statistically significant difference in the right knee flexor/extensor peak torque, peak torque % body weight, total work and total work % body weight both old men and women after a year training. 4. There is a statistically significant difference in the left knee flexor/extensor peak torque, peak torque % body weight, total work and total work % body weight both old men and women after a year training.
강도별 운동 전·후 혈청 LDH, 및 CK의 활성도 변화
임용택,송분도,이충영,박명수 한국스포츠리서치 2005 한국 스포츠 리서치 Vol.16 No.2
The purpose of this study was to investigate the changes of Creatine Kinase(CK) and Lactate Dehydrogenase(LDH) activity following different exercise intensities. Each subject(N=G) performed 30min's running with different exercise intensities- 10% VO₂max, 60%VO₂max, 80VO₂max - using treadmill. To measure the blood concentration of CK and LDH, we collected blood three times - pre-exercise, post-exercise and 30min after cessation of exercise. Using this experimental method. following results were obtained; First, There was significant difference between pre- and post-exercise CK concentration in 40%VO₂max exercise group and 60%VO₂max exercise group(p<.05), but no significant difference in 80%VO₂max exercise group. Second, There was no significant difference between pre- and post-exercise LDH concentration in 40%VO₂max exercise group and 60%VO₂max exercise group. but significant difference in 80%VO₂max exercise group. This result suggested that the concentration of CK and LDH following exercise depend on exercise intensities.