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논문 기본 정보

자료유형
학술저널
저자정보
저널정보
한국사회체육학회 한국사회체육학회지 한국사회체육학회지 제11권
발행연도
1999.5
수록면
351 - 362 (12page)

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초록· 키워드

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The study was done in order to evaluate the effects of 12-weeks training on the pituitary-adrenal hormones, ACTH and cortisol, in 11 healthy male volunteers who were mean 35.27±2.97 hormones, ACTH and cortisol, in 11 healthy male volunteers who were mean 35.27±2.97 years old. All subjects performed the weight resistance and aerobic treadmill exercise during about 90 minutes more than 3 times per week throughout whole experimental period. They warmed up with 60rpm at 50watts and thereafter the work rate was gradually increased 25 watts every 2 minute until exhaustion. From the maximal exercise, various performance indexes such as VO_2max, anaerobic threshold etc, were measured. After gradual maximal exercise, all subjects performed continuous submaximal exercise at he work load comprised to their 65%VO_2max level during 40minutes. Blood samples during submaximal exercise were taken from each subject`s antecubital vein total 5times(pre-exercise, during 10min, 20min, and 40min exercise, and recovery 30min) by catheter and analyzed for plasma ACTH, cortisol, and lactate concentration. These all procedures were taken again after 2 week training. Statistical techniques for data analysis were applied repeated ANOVA and paired T-test and the 5% level of significance was used as the critical level for aception of hypotheses fot the study. In summary of results, the maximal oxygen uptake(from 41.25㎖/kg/min to 43.89 ㎖/kg/min, p<0.05) and ventilation threshold(from 70.29%VO_2max to 72.46%VO_2max, p<0.05). These improvement of fitness level be attendant on the increase of ACTH responsiveness to same submaximal work load(65%VO_2max), but not cortisol. These results were caused by the lower intensity of this study than anaerobic threshold, but probably respresented that the training might stimulate the responsiveness of HPA axis hormones.

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