2008 하계 전력수급 전망 및 부하관리 대책

어경철,Eo, Gyeong-Cheol 대한전기협회 2008 전기저널 Vol.- No.379

여자수영선수의 과다훈련이 프로락틴에 미치는 영향

김영준,어경철 한국스포츠리서치 2001 한국 스포츠 리서치 Vol.12 No.4

The purpose of this study is to show as a tool of diagnosis on overtraining througy the prolactin variation in the blood between an overtraining group and a normal training group, and also is to protect drop of exercise performance caused by overtraining and to be helpful for prevention of exercise innjury. Thus, girl's high school swimmers(Overtraining Group : N=7, Normal-training Group : N=7 ; total N = 14) who have a camp training for a national athletic game were the object of this study. This exercise programme consists of baseline training for one weeks, overtraining for three weeks, and regeneration training for two weeks. In the meantime, to fond out the formation of exercise programme for intensity resulted in overtraining, the variation of weight and record was stated in the experimental sheets, and also measured the variation of stress hormone(cortisol, catecholamine). As a result of this study, in the first stage we can find out the decrease of weight and record from overtraining group that exercised for three weeks, and also we can see the significant increase of stress hormone such as cortisol and catecholamine after training (p<.05). The variation of prolactin after pre and post of exercise in each training period from overtraining group can be seen significant increase(p<.05), however it's hard to find out it from normal training group. So it became known that overtraining can effect upon the secretion of prolactin.

장기간 수영훈련이 중년여성의 혈장 지질 및 아포단백질에 미치는 영향

김영준,장성동,어경철 동아대학교 스포츠과학연구소 2000 스포츠科學硏究論文集 Vol.18 No.-

The purpose of this study is to analyze the effects of long-term swimming excercise on thefat and aplipoprotein of middle-aged women. For the purpose, 14 middle-aged women who have no disease and do not any regular excercise are selected. They are divided into two groups. One is an exercise group(swimming group, Age : 39.0±2.12) consisting of seven members who are to make swimming exercise for eight weeks, and the other is a control group(control group, Age : 38.3±3.12). The effects of the exercise on fat and aplioprotein in blood are then examined. In terms of exercising method, the period, time and frequency of the swimming are determined as eight weeks, fifty minutes a day and five days a week respectively, The result of the study is as follows. 1.FFA, TG, TC and TC/HDL in blood plasma significantly decrease than before swimming, but LDL-C and HBL-C show no changes. 2.Aplipoprotein a and b in blood plasma show no changes over the eight weeks' exercise. Consequently, swimming exercise for eight weeks does not have an influence on LDL-C and HDL-C but on FFA, TG, TC and TC/HDL. The intensity, period and frequency of exercise should be maintained for change in cholesterol.

특수체육 : 댄스스포츠 운동이 정신분열증 환자의 체력에 미치는 영향

홍명엽(HongMyeng-Yeb),어경철(EhKyung-Chel),장성동(ChangSeung-Dong),최진관(ChoiJin-Gwan),김주혁(KimJu-Hyeok),이윤관(LeeYun-Gwan),김영준(KimYoung-Jun) 한국체육학회 2003 한국체육학회지 Vol.42 No.2

The purpose of to study is to analyze the change of body composition physical fitness, and pulmonary function after practicing dance sports of 60 minutes a day in 2 times a week during 12 weeks based on schizophrenia patients (male:5, female:6) who are in 30-60 aged hospitalized in the lunatic hospital. The results of the above study are as follows; % Fat is found to have a significant decrease in the male and female groups after dance sports exercise, Back strength and whole body reaction time are found to have a significant increase in the male group, and then trunk flexion and whole body reaction time are also found to have a significant increase in the female group. Forced vital capacity(FVC) is found to have a significant increase in the female group, and then the rate d forced vital capacity(%FVC) is found to have a significant increase(p<.05) in the male and female groups. But forced expiratory volume of per one second(FEV₁ ) is found to have a significant change in the male and female groups. Therefore, the results of physical test after practicing dance sports show a significant increase, and then dance sports are found to increase and keep the physical fitness, and then some when dance sports are practiced to mental patients who have been hospitalized in the lunatic hospital for a long time, it is recognized that physical fitness gives a significant increase to the above patients.

운동생리학 : 과다훈련이 수영선수의 스트레스호르몬 및 경기력에 미치는 영향

김영준(YoungJunKim),윤미연(MiYeonYoun),어경철(KyungChulEh) 한국체육학회 2001 한국체육학회지 Vol.40 No.3

본 연구는 과다훈련이 스트레스 호르몬 및 수영기록에 미치는 영향을 분석하는데 목적이 있다. 여자 수영선수를 대상으로 단계별로 훈련량을 변화시킨 과다훈련군 7명(17.7세)과 정상훈련군 7명(17.4세)으로 나누어 6주간 훈련을 실시하였다. 과다훈련군의 수영훈련은 기초훈련기(1주, 1회/일, 4,000m/일), 과다훈련 기(3주, 2회/일, 18,000m/일), 재생훈련기(2주, 1회/일, 4,000m/일)로 구분하여 실시하였으며, 정상훈련군의 수영훈련은 기초훈련(6주, 1회/일, 4,000m/일) 만으로 각각 6주간 실시하였다. 그리고 각 훈련 단계별 혈중 스트레스호르몬(에피네프린, 노르에피네프린, 코티졸) 농도, 수영기록 및 체중의 변화를 관찰하였다. 그 결과 과다훈련군의 에피네프린, 노르에피네프린, 코티졸은 모두 유의하게 현저한 증가 양상을 보였으며, 재생훈련 후에도 이들 스트레스호르몬의 농도는 기초훈련기에 비해 유의하게 증가하였다. 특히 노르에피네프린은 에피네프린에 비해 과다훈련 후에 증가양상이 현저하였으며, 재생훈련 후에도 혈중에서 높은 수치로 나타났다. 이러한 신체적 변화에 의해 수영기록은 과다훈련군에서 과다훈련 후에 유의하게 감소하였으며, 체중 또한 유의하게 감소하였다. 따라서 혈중의 에피네프린, 노르에피네프린, 코티졸의 농도는 과다훈련의 비적응 상태를 진단하는 유용한 도구로 사용될 수 있을 것이다. 그리고 과다운동으로 인한 수영기록의 저하 방지 및 운동상해 예방에 도움을 줄 수 있을 것이다. The purpose of this study is to investigate the stress hormones effects and the change of swimming capacity. During 6 weeks, 14 trained female swimmers constitute two groups of the study: overtraining group(17.7±1.0yr) performed by stepwise training mass variance basic training phase, overtraining phase, and regeneration training phase) and normal training group(17.4±0.5yr). After training, the changes of blood stress hormones(epinephrine, norepinephrine, and cortisol) concentration, body weight and swimming record changes. As a result of overtraining catecholamines and cortisol increases in the body. During the recovery following regeneration training phase, their concentration significantly increases compared with basic training phase. Particularly, the increase of norepinephrine remarkedly reduced at the rest following overtraining and at the recovery following regeneration training phase, the values are high in the body. The reason that the hormones increase in the body is the mechanism that the body responses the stress due to overtraining. As observed by these results, swimming records due to physiological and psychological changes was reduced after overtraining. It seems to be the result of complex interaction of previously indicated factors, Thus, the values of blood epinephrine, norepinephrine, and cortisol. Overtraining and help pre and exercise induced injuries preventing from athletic performance decline.

카누선수의 호흡순환기능 및 운동강도에 관한 연구

김영준,이종훈,장성동,어경철 동아대학교 스포츠과학연구소 2000 스포츠科學硏究論文集 Vol.18 No.-

The purpose of this study was to measure the respiratory function with kayak-Ergometer and to and analyze the exercise intensity for each kayak player in 500m canoe race. Subjects were seven well-trained kayak players of a middle school in U city. Control group was composed of seven beginners who were not trained in three months yet. On this study, they (trained and non-trained) were tested by using kayak-Ergometer. According to them, we analyzed the exercise intensity in 500m race by analyzing V O2max, V O2max/kg, HRmax and blood lactate concentration during convalescence and measuring the heart rate in 500m canoe race. On analysis, we come to a conclusion like this : 1.The study has shown that V O2max, V O2max /kg and all out time of canoe players were higher(P<.05) than that of non-trained respectively. There wasn't a striking difference on VEmax and HRmax between two groups. HRrest during stability of non-trained were higher(P<.05) than that of trained, but there was not a sharp difference on HRmax. 2.Lactate concentration was not to have a significant difference on rest, after maximal exercise and recovery 2 min. But it is found to have a high significance(p<.05) to recovery 3 min. 3.During 500m race, intensity of the over 81%HRmax was shown as the highest intensity to 66.7% of all races. Intensity of 71∼80%HRmax, 41 ∼70%HRmax and under 40%HRmax amounted to 11.1% of al1 race. Putting the above-mentioned together, we can assume that kayak has an influence on V O2max, V O2max /kg, Heart Rate during stability and can improve the recovery of blood lactate density. And the data have shown that 500m race is an exercise of high intensity to some degree that the 66.7% of it should require 81% HRmax or even more.

스쿼트운동이 호흡순환 및 스트레스호르몬에 미치는 영향

김영준(Young Jun Kim),어경철(Kyung Chul Eh),장성동(Seung Dong Jang) 한국사회체육학회 2001 한국사회체육학회지 Vol.16 No.-

This study is to find out the variation of cortisol and catecholamines concentrations in subject plasma based on the exercises such as the intermittently practiced maximal muscle constriction exercises (80% body weight isotonic full-squat exercise, 80% body weight isometric squat exercise), and then is to find out the relation between stress hormones secreted in the above exercise and cardio-respiratory variations. The subjects consist of 7 males(22.26±0.68year), and then the exercises were practiced by the method of the intermittent isotonic and isometric based on 80% of each subject`s weight-and especially in the squat exercises. The results examined the reactions of plasma cortisol, catecholamines, and cardio-respiratory functions(respectively, in the examination of the rest time, and after intermittent maximal squat exercise) are as follows: 1. V_Emax, HR_max, and exercise duration time are found to have a significant difference in isotonic and isometric squat exercises. 2. Cortisol is found to have a high secretion in the isometric full-squat exercise, and then not to have a significant difference in statistics. 3. Catecholamines is found to have a high significance(p<.05) in the isometric full-squat exercise. 4. VO_2max and exercise stress hormones are found to have a significant and positive correlation (0.71-0.81). As the above results, the exercise of isotonic full-squat is found to have the, higher blood concentrations than that of isometric in the catecholamines(epinephrine, norepinephrine), and then the stress of body is found to have a high level in the isotonic full-squat exercise.

운동생리학 : 유산소운동이 비만청소년의 렙틴 및 지질농도에 미치는 영향

김영준(KimYoungJun),석재옥(SukJeaWook),석혜경(SukHeaKyoung),어경철(EoKyungCheol),최진관(ChoiJinGoan),김주혁(KimJuHyeok),이윤관(LeeYoonKwan) 한국체육학회 2003 한국체육학회지 Vol.42 No.1

The purpose of this study is to analyze the change of blood lipid concentration and leptin hormone, as well as to estimate the correlation between leptin hormone and blood lipid before and after training, which was conducted to the subject of obese adolescents in growth period. The subject of this study is as the male students at D high school in B city, 14 students was selected among the students whose BMI(kg/m²) is more than 25,and they consisted of exercise group (N=7, age: 18,3±0.86) and control group (N=7, age: 18_1±0.52) through random sampling method. Blood component analysis is TG, Total Cholesterol, LDL-C, HDL-C, Leptin, and the results from analysis are as follows.In the change of blood Triglyceride & Total Cholesterol & LDL-C & Leptin followed by 12 week training, exercise group showed very significant difference, compared with control group(p<.001), and in the change of blood HDL-C followed by 12 week training, exercise group showed very significant increase, compared with control group (p<.001).On the result of analyzing the correlation between Leptin hormone and TG, Total Cholesterol, LDL-C, HDL-C before and after 12 week aerobic exercise, the significant correlation did not show.As the above result, through the 60%HRmax aerobic exercise for 50 minutes every three times a week for 12 consecutive weeks, TG, Total Cholesterol, LDL-C, Leptin in blood lipid was decreased and HDL-C was increased. Therefore, we can infer this 60%HRmax ae