자연과학편 : 축구선수(蹴球選手)의 전문적(專門的) 지구력(持久力) Training 방법(方法)을 모색(摸索)하기 위(爲)한 실험적(實驗的) 연구(硏究) Ⅰ

최은택(EunTaikChoi) 한국체육학회 1988 한국체육학회지 Vol.27 No.1

자연과학편 : 축구선수(蹴球選手)의 전문적(專門的) 지구력(持久力) Training 방법(方法)을 모색(摸索)하기 위한 실험적(實驗的) 연구(硏究) Ⅱ

최은택(EunTaikChoi) 한국체육학회 1989 한국체육학회지 Vol.28 No.2

The purpose of this study was to investigat the soccer players’ special endurance training method.The subjects were six male students in the department of physical education at H university.After performing stationary, progressive, and irregular load exercise for 35.28 minutes by Bicycle ergometer on the standard of the whole running distance and condition at the time of soccer game, WBC, RBC, Hgb, HCT and PLT wers measured before and after exercise.The results were as follows;1. WBC by stationary, progressive, and irregular load was shown to have decreased by 5minutes and 10 minutes at recovery after exercise than before exercise(F2.30=0.009, p>0.05), but WBC by stationary, progressive, and irregular load methods was shown to have increased(F2.30=10.826, p< 0.01).2. RBC by stationary, progressive, and irregular load was shown to have decreased by 5minutes and 10 minutes at recovery after exercise than before exercise(F2.30=0.011, p >0.05), but RBC by stationary, progressive, and irregular load methods was shown to have increased(F2.30=18.453, p< 0.01).3. Hgb by stationary, progressive, and irregular load was shown to have decreased by 5minutes and 10 minutes at recovery after exercise than before exercise(F2.30=0.0095, p >0.05), but Hgb by stationary, progressive, and irregular load methods was shown to have increased(F2.30=7.508, p< 0.01).4. HCT by stationary, progressive, and irregular load was shown to have decreased by 5minutes and 10 minutes at recovery after exercise than before exercise(F2.30=0.016, p >0.05), but HCT by stationary, progressive, and irregular load methods was shown to have increased(F2.30=7.5094, p< 0.01).5. PLT by stationary, progressive, and irregular load was shown to have decreased by 5minutes and 10 minutes at recovery after exercise than before exercise(F2.30=0.106, p >0.05), but PLT by stationary, progressive, and irregular load methods was shown to have increased(F2.30=0.106, p<0.01).It was concluded that the differences of WBC, RBC, Hgb, HCT and PLT between after exercise and before exercise in staionary, progressive, and irregular load were shown to have decreased. but there were differences between load methods. Im comparision between loads, irregular load method has increased more highly than stationary and progressive load methods in WBC, RBC, Hgb, HCT and PLT. Accordingly, it is assumed to be more clearly lightened when the study of training by stationary, prograssive and irregualr load methods is in active.

자연과학편 : 수영참가 중 · 노년 여성과 비활동 중 · 노년 여성의 혈청지질 반응

최은택(EunTaikChoi),고영완(YoungWanKo) 한국체육학회 1995 한국체육학회지 Vol.34 No.2

The purpose of this study was to prevent from chronic diseases such as coronary heart disease by using swimming program for elder & middle-aged women, and to investigate the effects of serum lipids.The subjects classified into trained elderly women group(60-65 yeas, n=8), untrained elderly women group(60-65 years, n=8), trained middle-aged women group(42-48 years, n=8), & untrained middle-aged women group(42-48 years, n=8). In order to change of the acurate serum lipids by swimming program during 8 months(3times/week, 50min./day), all subjects of each group were gradually exercised by treadmill untill exhaustion. Blood samples were taken from antecubital vein one time immediately after exhaustion and analyzed for total cholesterol, HDEL-cholesterol, triglycerides, and LDL-cholesterol calculated by the formula of Friedewald et al.These data were analyzed by twoway ANOVA between age(aged females * middle-aged females) * training(trained * untrained) groups.The results showed that there were significant changes in total cholesterol at age groups(p< 0.05), but no significant changes at training groups(p >0.05) & age * training groups interaction(p>0.05). and there were significant changes in HDL-cholesterol(age groups, p<0,01: training groups, p< 0.001, age * training groups interaction, p >0.05), triglycerides(age groups, p<0.01: training groups, p< 0.001, age * training groups interaction, p >0.05), and LDL-cholesterol(age groups, p<0.01: training groups, p< 0.001, age * training groups interaction, p >0.05).In conclusion, increases in HDL-cholesterol and decreases in LDL-cholesterol & triglycerides after endurance training can be suggested as an effect to prevent CHD for the elderly & middle-aged subjects.

자연과학편 : 변칙 부하 운동시 무산소성 역치 수준변화에 관한 연구

최은택(EunTaikChoi) 한국체육학회 1993 한국체육학회지 Vol.32 No.1

The purpose: of this study was to investigate the establishment of index composed contents on special endurance training method for soccer players.Subjects, 10 male students of H University, were cluster samples and they completed a graded exercise protocol to maximal physical work capacity on a treadmill to determine anaerobic threshold, and then anaerobic threshold level the whold running distance (45min) using a bicycle ergometer.After progressive & irregular load exercise, the results were analyzed of the value of max. (HR_max, VO_2max, Ve_max Lactate max) and anaerobic threshold level(MV, Lactate).The results were as follow :1. Anaerobic Threshold Level of Progressive & Irregular Load Exercise1) Heart RateThe progressive load exercise in AT level showed 171.21 beats /min at 29’5", and irregular load exercise showed 169.00 beats/min at 6’00", 182.40 beats/min at 22’30", 180.90 beats /min at 26’30", 183.60 beats /min at 30’00", 41’30", and 171.00 beats /min at 43’00".2) VO₂The progressive load exercise in AT level showed 36.82 VO₂ ㎖/㎏·min at 26’00", but irregular load exercise showed. 36.26 VO₂ ㎖/㎏·min at 2’00". 37.29 VO₂ ㎖/㎏·min at 5’30", 39.87 VO₂ ㎖/㎏·min at 22’30". 41.24 VO₂ ㎖/㎏·min at 40’00", 38.00 VO₂ ㎖/㎏·min at 45’00".3) MVThe progressive load exercise in AT level showed 60.71 ℓ/min at 28’55", but irregualr load exercise showed 62.26 ℓ/min at 6’00", 63.81 ℓ/min at 9’00", ℓ/min at 37’00", 61.27 ℓ/min at 39’00", and 60.45 ℓ/min at 45’00".4) LactateThe progressive load exercise in AT level showed 4.18 mmolℓ/ at 25’00", but irregular load exercise showed 4.17 mmol ℓ/ at 5’00", 4.13 mmolℓ/ at 24’00" and 4.05 mmolℓ/ at 35’00".2. The Value of Max. of Progressive & Irregular load ExerciseIn the level of HRmax, progressive, load exercise showed 206.00 beats /min, and irregular load exercise showed 200.30 beats /min.In the level of HR_2max, progressive load exercise showed 64.20 VO₂ ㎖/㎏·min, and progressive load exercise showed 49.40 VO₂ ㎖/㎏·min.In the level of MVmax, progressive load exercise showed 128.40 ℓ/min, but irregular load exercise showed 87.80 ℓ/min.In the level of Lactate max, progressive load exercise showed 8.74 mmalℓ/, and irregular load exercise showed 4.52 mmalℓ/.

자연과학편 : 심폐기능이 최대 및 최대하 운동시 혈청 젖산탈수소효소 활성도 및 동위효소 분포비의 변화에 미치는 영향

최은택(EunTaikChoi),조성봉(SeongBongCho) 한국체육학회 1994 한국체육학회지 Vol.33 No.1

This study was performed to investigate the effects of cardiorespiratory function on the change of serum LDH activity and distribution of isoenzyme during recovery phase after maximal and submaximal exercise with athletes and nonathletes.This results were as follow :1. The cardiorespiratory function of athletes as maximal oxygen uptake and lactate threshold was superior to that of nonathletes.2. The change of serum LDH activity after maximal exercise showed higher than the change of serum LDH activity after submaximal exercise, and the increase of serum LDH activity in athletes showed higher than nonathletes.3. The changes of distribution of isoenzymes after maximal and submaximal exercise in nonathletes showed higher than athletes. In the changes of distribution of isoenzymes, the change of heart type was related to submaximal exercise, however the change of muscle type was related to maximal exercise.In this results, we think that the lower level of cardiorespiratory function were the more the change of distribution of isoenzymes and level of fatigue. In addition to, we proposed that the investigation of optimal level in exercise prescription required the analysis of detail items as the change of isoenzyme distribution.

자연과학편 : 수영 프로그램 참여 노인여성과 비운동 여성의 심폐순환기능 비교

최은택(EunTaikChoi),고영완(YoungWanKo) 한국체육학회 1995 한국체육학회지 Vol.34 No.1

The purpose of this study was to improve and maintain the health by using swimming program for the elderly & middle-aged females, and to examine the effects of cardiovascular enduarance.The subjects classified into trained elderly women group(60-65 years, n=8), untrained elderly women group(60-65 years, n=8), trained middle-aged women group(42-48 years, n=8), & untrained middle-aged women group(42-48 years, n=8). In order to measure the responses of cardiovascular enduarance by swimming program during 6 months(3times/week, 50min./day), all subjects of each group were gradually exercised by treadmill until exhaustion and analyzed for HRrest, HRmax, VO₂max, and VEmax.This data was analyzed by oneway ANOVA among groups & SNK-test between groups.The results showed that there were significant differences in rest heart rate(p<0.001), HRmax (p<0.001), VO₂max(p<0.001), and VEmax(p<0.00l). [rest heart rate SNK-test: trained elderly women group vs untrained elderly women group, trained middle-aged women group vs untrained middle-aged women group, elderly women group vs middle-aged women. HRmax SNK-test: elderly women group vs middle-aged women. VO₂max SNK-test: trained middle-aged women group vs untrained middle-aged women group, elderly women group vs middle-aged women. and VEmax test trained elderly women group vs untrained elderly women group, trained middle-aged women group vs untrained middle-aged women group, elderly women group vs middle-aged women).In conclusion, it is showed that the endurance training such as swimming can enhance the cardiovascular endurance of this elderly & middle-aged subjects.

자연과학편 : 부하(負荷), 굴곡각(屈曲角), 이탈범위(離脫範圍)에 따른 주관절굴곡(?關節屈曲) 운동(運動)의 근전도(筋電圖) 분석(分析)을 통(通)한 최대운동(最大運動) 효과(效果) 추정(推定)

임용규(YoungKyuLim),최창국(ChangKukChoi),최은택(EunTaikChoi) 한국체육학회 1988 한국체육학회지 Vol.27 No.1

The purpose of this study was to analyze action potential of the M. Biceps brachii, M. Triceps brachii, M. Brachioradialis, M. Pronator teres with an electromyography, to estimate for maxium movement effects during the elbow-joint flexion movement which were divided the secession, load, Angle also, experimental design mad up within-subject.The conclusion were as follows:1. The action potential of the M. Biceps brachii, M. Brachioradialis, M. Pronator teres showed the positive change according to increasing load into 3 ㎏, 5㎏, 7㎏.2. The action potential of the M. Biceps brachii, M. Brachioradialis, showed significant according to increasing elbow-joint flexion angle into 30˚, 90˚, 120˚during the elbow-joint movement in a equal load.3. The action potential of the M. Brachioradialis showed slight change according to increasing seccession, which were divided from the ine of center of gravity, into 10cm, 20cm, 30cm during the elbow-joint flexion movement in a equal load.Sum up, in the elbow-joint flexion movement to attain the effect of maximum movement the load and flexion angle should be considered in the M. Biceps brachii, Load and Secession in the Brachioradialis, Load in the M. Pronator teres.