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클렌부테를 투여와 지구성 운동이 S-D계 흰쥐의 혈중 렙틴에 미치는 영향
허만동 ( Man Dong Huh ),손태열 ( Tae Yael Son ) 한국운동영양학회 2002 Physical Activity and Nutrition (Phys Act Nutr) Vol.6 No.2
This study aimed to see clenbuterol(β_2-adrenergic agonist) administration, exercise training, and the combination of these on plasma leptin responses and endurance exercise performance were investigated. Forty male Sprague-Dawely rats were randomly assigned to one of four treatment groups : The whole rats eating 30% Hight-fat diet control(CON; n=10), clenbuterol(CL; n=10), exercise trained(EX; n=10), or clenbuterol/Exercise trained(CL+EX; n=10). The exercise protocol consist of running on motor-driven treadmill up an 8% grade, 27 m/min, 1 hr/day, 5 days/wk for 2 weeks. Clenbuterol were intubated with 2 ㎎/㎏ body wt/day dissolved in deionized water, Clenbuterol did not change body weight compared with control groups. Exercise training and clenbuterol administration significantly decreased plasma leptin, glucose, and insulin hormone. There was correlation significantly between insulin and leptin. Exercise training groups significantly decreased blood TC, HDL-C. clenbuterol administration significantly increased plasma LDL-C. CL and CL+EX groups significantly decreased endurance running time compared with EX group. The results of the current study indicate that the effects of clenbuterol administration are the same as the effects of exercise training in leptin levele, The combined effects of these two treatments in decreasing the leptin level was additive.
저항성 운동이 혈중 호르몬과 효소의 반응에 미치는 영향
허만동(Huh Man-Dong),손태열(Son Tae-Yael),윤공화(Yoon Gong-Hwa),정규성(Jeoug Kyu-Seong),김승환(Kim Seung-Hwan) 한국체육과학회 2002 한국체육과학회지 Vol.11 No.1
The purpose of the current study was to investigate the effect of elastic resistance strength training (ERST) on plasma testosterone, cortisol, CPK and LDH reponses. Five college male students who were not experienced in resistance training were participated in this study (Height = 172.0±1.8 ㎝; Body weight = 67.3±3.1 ㎏; Age = 19.4±0.9 years). Rubber band was used for elastic resistance training. Training protocol was based on progressive overload principle for 4 week period. Isokinetic strength, Wingate power test and blood analysis were performed at prior to training, after 1-week, 2-week, 3-week and 4-week training. Isokinetic strengths were not significantly different between pre and post training, but during training they were significantly increased and decreased following the change of training intensity. LDH was not significantly affected during the whole training period but CPK at the end of the current experiment was significantly increased. The plasma cortisol and testosterone reponses were not affect from the present ERST, respectively. Therefore, the results of the present study indicated that the present ERST did affect the isokinetic strengths during training in the absence of the significantly change of humoral factors.
안의수,손태열,안응남,김완수,이한,김향선,김동제,김현태,장동현,이상은,정영숙,강지윤 한국운동영양학회 2000 Physical Activity and Nutrition (Phys Act Nutr) Vol.4 No.2
The purpose of this study was to discuss on the preceding studies that is related to bring about the fatigue during submaximal exercise, to make propose an alternative plan on the suppression of blood lactate and ammonia concentration. In general, the fatigue is gave a definition that does not give full play or maintain one's force and power. The fatigue is classified into the central fatigue and peripheral fatigue. There is a controversy on the fatigue that is caused by the center or periphery so far. The discussion on the preceding studies proved the methods of inhibition of the increase in lactate and ammonia during submaximal exercise. We meditated that OKG administration is an effective method to decrease lactate and ammonia by increasing the concentration of glutamate in human body. In other words, we have observed that OKG administration prior to submaximal exercise can improve the exercise capacity and the rate of recovery after exercise.