자연과학편 : 장거리(長距離) 선수(選手)의 식이요법(食餌療法) 훈련(訓練)이 운동시(運動時) 혈중(血中) Glucose 농도(濃度)와 기록(記錄)에 미치는 영향(影響)

權泰東(TaeDongKwon),許垘(BokHuh),黃樹寬(SooKwanHwang),朱永恩(YoungEunChoo) 한국체육학회 1984 한국체육학회지 Vol.23 No.2

Effect of diet in general, and glycogen storage in particular on the performance ability of athletes has been well documented. In this study, an effort was directed to further clarify the effect of the body glycogen storage on the blood glucose level and the running record in the long distance runners. Forty-two male high school athletic students of 15 ~19 years of age who are well trained as the long distance runners were selected. The subjects were divided into three groups: i.e, the control, low carbohydrate (LCHO) and high carbohydrate- (HCHO) group. HCHO group was supplied with a high fat and high protein diet for two days with a hard running exercise followed by a high carbohydrate diet for 3 days with a light running erercise. LCHO group received a high fat and high protein diet with a hard running exercise. A long distance running of 1) 20km at a full speed and 2) 10km at a constant speed of 18km per hour was performed. LCHO group performed only10km running. The blood glucose concentration was determined by an enzymatic method, venous blood pH by using the Corning model 175 automatic blood gas analyzer, blood lactate concentration by the method of Barker and Summerson, heart rate by palpating the radial artery.The following results were obtained.1. Blood glucose concentration:After 10km running, both the control and HCHO groups showed increased values in comparison to the resting values immediately and 10 min after exercise, while LCHO group showed lower values than the resting values immediately, 10 and 30 min after exercise. The LCHO group showed values than the control group immediately and 10 min after exercise.After 20km running, the control group showed increased values compared with the resting values during exercise (10km point) but showed decreased values in comparison to the resting values immediately after exercise. The HCHO group showed increased values in comparison to the resting values immediately, 10 and 30 min after exercise. The HCHO group showed higher values than the control group immediately and 10 min. after exercise and the difference was especially remarkable immediately after exercise.2. Blood lactate concentration:After 10kra running, all 3 groups showed increased values compared with the resting values where the LCHO group showed lower values than the control group immediately, 10 and 30 min. After 20km running, both the control and HCHO groups showed increased values comparision to the resting values, where the HCHO showed higher vahaes than control.3. pH of -venous blood:Both the control and HCHO groups showed decreased values in comparison to the resting values during and immediately rafter exercise. The HCHO group showed lower values than control group immediately after exercise.4. Heart irate:After 20km running, both the control and HCHO groups showed increased values compared with the resting values, where HCHO group showed lower values than, the control group immediately, 3 and 5 min after exercise.5. Record:The HCHO group showed shorter values than die control group after 20km running at a full speed.From the above results, we could note that blood glucose level was increased due to the increase of glycogen storage in the body and that subsequently the subjects made a shorter record through the dietary regime.

반신욕이 최대운동 후 피로회복 및 혈중지질에 미치는 영향

권태동(TaeDongKwon),김기훈(KiHoonKim),배재화(BaeJaeHwa) 한국체육학회 2010 한국체육학회지 Vol.49 No.5

The purpose of the study was to find the effect of half-bath on fatigue recovery and blood lipids after maximal exercise. Subjects were healthy and young men of college students. The subjects of present study were divided into 30 min half-bath recovery group and non-half-bath group. All the experimental conditions were continued until subjects stopped because of fatigue. After maximal exercise were measured repeatedly to get results on the change of blood fatigue elements and blood lipids. Fatigue elements change of hole of convalescence displayed recovery ability that lactic acid and ammonia are more fast in half-bath group after maximal exercise. but inorganic phosphate concentration was no difference. Blood lipids change of hole of convalescence displayed recovery ability that on the whole more or less in half-bath groups after maximal exercise but there was no statistical difference. In conclusion, At the period of recovery after maximal exercise, Performance of half-bath will be help in recovery of fatigue according to the time of removal and removal rate were improved.

자연과학편 : 운동부하가 흰쥐의 골격근내 지질대사율과 UCP-3 및 CPT-1 단백질 발현에 미치는 영향

권태동(TaeDongKwon),김기훈(KiHoonKim),서혜정(HeaJungSuh) 한국체육학회 2006 한국체육학회지 Vol.45 No.1

The purpose of this study was to investigate the gene expression related with lipid metabolism according to intensity and duration of treadmill exercise in rats. Sprague-Dawley rats were randomly divided into control(CON), high -intensity(H-EX) and low-intensity exercise(L-EX) groups. Rats in L-Ex group were forced to run on the treadmill at the speed of 5m/min for initial 10 min and 10m/min for next 20 min. On the other hand, rats in the H-Ex group were forced to run on the treadmill slope 0 at the speed of 16m/min for initial 10 min, 22m/min for next 20 min, and 25m/min for last 40 min. Expression of UCP3 of the WG and RG in L-Ex and H-Ex groups was increased compared with control immediately after exercise. Expression of UCP3 of the WG and RG in the H-Ex group was higher than in the L-Ex group. CPT-1 expression of the WG and RG in the H-Ex group was increased immediately and 6 hr after exercise compared with control. CPT-1 expression of the RG in the H-Ex group was highest 6hr after exercise. CPT-1 expression of the RG and WG in the L-Ex group was not differ among groups. Palmitate oxidation rate of the RG and WG was increased 0, 6 and 12 hr after exercise in the H-Ex group, and 0 and 6 hr after exercise in the L-Ex group compared with control. Palmitate oxidation rate of the H-Ex group was higher than in the L-Ex group 0, 6 and 12 hr after exercise in RG, and 0 and 6hr after exercise in WG.In the summary, gene expression of UCP3 and CPT1 that related with lipid metabolism was not significantly affected during 0 to 60 min recovery time by low-intensity exercise, but effected by high-intensity exercise. In conclusion, exercise intensity and amounts might be have very important role to regulate gene expression related with metabolism.

식이제한과 운동부하가 식욕조절관련 호르몬 및 LPL활성에 미치는 영향

권태동(TaeDongKwon),김기훈(KiHoonKim) 한국체육학회 2012 한국체육학회지 Vol.51 No.1

The purpose of this study was to identify the effects of activity of lipoprotein lipase(LPL) and level of appetite control hormone for repeated feeding and exercise during five weeks. Thirty-two Sparague Dawley male rats were divided into 4 groups as follows: control group(CON, n=8), repeated fasting and refeeding group(RER, n=8), RER+exercise group(RER+EX, n=8), 50% volume of pair feed as RER group(PF, n=8). The results were as follows: There was significantly decreased in body weight and fat mass compared to control group(p<.05). The level of leptin was more significant decreased at three groups than control group(p<.05). The level of ghrelin was more significant increased the three groups than control group(p<.05). It is exhibit opposite tendency between the level of leptin to ghrelin. The activity of LPL was significantly decreased only PF group compared to other groups. Meanwhile there was inverse proportion LPL activity to appetite control hormone(r2=0.2383). However there was no correlation LPL activity to appetite control hormone. Consequently, The results were as follows: There was decreased LPL activity in adipose tissue by food restriction and repeated fasting and refeeding including exercise for five weeks. and there was induced to decrease body weight and fat(%) by correlation roles of leptin and ghelin.

운동영양학 : 폴리페놀과 비타민 C 투여가 운동시 흰쥐의 항산화능에 미치는 영향

권태동(TaeDongKwon),최상원(SangWonChoi),이상직(SangJikLee),정관우(KwanWooChung),이수천(SooChunLee) 한국체육학회 2001 한국체육학회지 Vol.40 No.3

Polyphenol and vitamin C are known to prevent lipid peroxidation during exercise. Among the known polyphenol, the polyphenol extracted from apple as used has the similar effect of antioxidant. Therefore we examined the effects of acute or chronic polyphenol or vitamin C on antioxidants enzymes activities in rats. Rats were exercise training on the treadmill before 3 d of sacrifice for treadmill adaptation. They were administered 5 % of polyphenol and 50㎎ of vitamin C before the exercise at the final day of the experiment in acute administration group (APA or AVA) and the same amount of supplements was administered for 4 wk (CPA or CVA). Control group was administered the same amount of water at the same time point (NA). One-way ANOVA was performed as the statistical analysis. MDA concentrations in liver, heart, soleus muscle, gastrocnemius red and white muscle were significantly decreased by polyphenol or vitamin C administration. In addition, chronic administration has the strong effect compared with acute administration SOD concentrations in liver and heart were significantly increased by polyphenol or vitamin C administration. However, skeletal muscle SOD concentrations were not statistically significant. These results suggested that endurance exercise training reduced the risk of lipid peroxidation during exercise in rats. Moreover, acute or chronic administration of polyphenol and vitamin C increased the antioxidative activity that prevent the lipid peroxidation during exercise in rats.

스포츠 생리학 : 종목별 운동선수 폐기능에 관한 연구 - 검도 , 펜싱 , 씨름 , 조정 대학 선수를 중심으로 -

권태동(TaeDongKwon),박덕일(DeokIlPark) 한국체육학회 1998 한국체육학회지 Vol.37 No.3

This study was aimed to elucidate the effect of physical fitness training on pulmonary function. 44 healthy male subjects(15 Kumdo players, 10 Fencing players, 10 Ssirum players and 9 Rowing players) who have undergone regular physical training for more than five years were randomly chosen as athletic subjects, and 10 regular students who have not been engaged in any form of regular physical exercise or training were chosen as nonathletic subjects. The measurement results of pulmonary function test were compared among athletic groups by events and nonathletic group. The results were summarized as follows. 1. In static lung volume, VC was significantly(p<0.01) different among each group. Especially Ssirum group was significantly(p<0.05) higher than Kumdo group and Nonathletic group. IRV and ERV showed no significant difference among each group. TV was significantly(p<0.05) different among each group, and Ssirum group was significantly(p<0.05) higher than Rowing group and Nonathletic group. 2. In dynamic lung volume, FVC was significantly(p<0.05) different among each group. Especially Rowing group was significantly(p<0.05) higher than Kumdo group and Nonathletic group. FEV_(0.5), FEV₁ and FEV₁/FVC were not significantly different among each group. 3. FEF_(0.2∼1.2L), FEF_(25∼75%), FEF_(25%), FEF_(50%), FEF_(75%) and PEF were not significantly different among each group. 4. FIV_(0.5) were significantly(p<0.05) different among each group. Especially Ssirum group was significantly(p<0.05) higher than other groups. FIF_(50%) and PIF were significantly(p<0.01, p<0.05 respectively) different among each group. These values of Ssirum group were significantly(p<0.05) higher than those of Fencing group, Rowing group and Nonathletic group. FEV_(0.5)/FIV_(0.5) was also significantly(p<0.05) different among each group. The value of Fencing group was significantly(p<0.05) higher than that of Kumdo group and Ssirum group. 5. MVV was not significantly different among each group. But RR and MTV measured during MVV measurement were significantly(p<0.001) different among each group. Kumdo group was significantly(p<0.05) higher than other groups in RR, and Ssirum group was significantly(p<0.05) higher than other groups in MTV.

운동부하가 흰쥐의 지방대사율 및 렙틴에 미치는 영향

박소은(SoEunPark),권태동(TaeDongKwon),김기훈(KiHoonKim) 한국체육학회 2010 한국체육학회지 Vol.49 No.4

Leptin, the product of obese(ob) gene, is thought to be a lipostatic hormone strongly correlate to body fat content regulation though modulating food intake and energy expenditure. We questioned whether each different exercise intensity are correlated to biochemical parameters, plasma leptin and lipid metabolism. 35 male white rats of Sprague-Dawley(12 weeks of age) were divided into the five groups: resting group(n=7), low intensity exercise group(n=14), high intensity exercise group(n=14). The experimental groups were redivided into 0hr and 6hr group after exercise recovery period. We measured the blood lipid profiles, leptin in plasma and long-chain fatty acid(LCFA) oxidation rates in skeletal muscle. The result of this study were as follows: Triglyceride were significantly increased after exercise 0hr in high intensity but 6hr after exercise were decreased. The other plasma lipid factor were not significantly different exercise groups. The other plasma lipid factor and plasma leptin concentration were not significantly different after exercise. On the other hand. Long-chan fatty acid oxidation(LCFA) in red gestrocnemius were significantly increased after high intensity exercise at recovery period in 0hr and 6hr. In conclusion, Plasma leptin levels did not effect an acute of exercise. These findings suggest that acute exercise does not independently affect plasma leptin concentration. However, High intensity exercise did significantly affect LCFA in skeletal muscle in red muscle.

스포츠생리학 : 인체계측변인을 이용한 대퇴사두근의 근량 산출

김훈(HoonKim),권태동(TaeDongKwon),안병철(ByungCheolAhn) 한국체육학회 1999 한국체육학회지 Vol.38 No.3

The purposes of this investigation was to drive and validate circumference and anthropometric equations for estimating muscle mass of thigh muscles. A total of 18 subjects were involved in this study; nine being in the experimental group and nine in the testing group. For the subjects in the experimental group, forty-five to fifty-five MRI slices at sagittal planes were obtained with an interval of 10㎜. Also, six to eight photographs of coronary planes were taken for the same subjects in order to calculate PCSA(physiological cross-sectional area). With the examination MRI slices and coronary plane photographs, multiple-regression analyses were used to drive equations for predicting thigh muscle mass of dominant limb from the anthropometric dimensions on a random sample of 18 of subjects. Cross-validation(CV) analyses were performed for each equation on; (a) the dominant thigh of the derivation group(n=9) (b) the dominant thigh of the CV group(n=9) Using the multiple-regression analyses(stepwise), the following prediction equation were obtained for muscle mass. The important predicting variables in the two equations are from X1 to X5. The results of the following have been drawn. Where; constant = -2025.33076, b₁ = -40.76066, X₁ = the skinfold of proximal 2/5 thigh, b₂ = 104.87551, X₂ = the circumference of mid thigh, b₃ = -55.12454, X₃ = the circumference of proximal 4/5 thigh, b₄ = -54.98727, X₄ = calf length, and b₅ = 411.09652, X₅ = the breadth of knee. The estimating equation were resulted in the explanation of 91%(R=.95, R²=.91, SEE=66.79, P<.001). From the results of CV, there was no significant(P=,05) difference between value of MRI and estimating equations. It was concluded that the anthropometric equation developed can be used to reasonably predict muscle mass, in that it is the only ones which were developed based on in vivo-method(a live human body).

자연과학편 : 감초추출물 섭취가 흰쥐의 운동 중 혈중 지질농도에 미치는 영향

류승필(SungPilRyu),권태동(TaeDongKwon),여윤기(YunGhiYeo),김병성(ByungSungKim),이수천(SooChunLee) 한국체육학회 2006 한국체육학회지 Vol.45 No.1

Licorice-root-extracted food components are little known about its functions on blood lipids and antioxidant defense system during exercise or normal condition in human and rodents. Therefore, in this experiment, two extracted components, which glabrol and glabridin are used as the supplement. 18-Sprague Dawley male rats were used as a subjected and were ingested 50 mg/kg of each supplement. Rats were exercise on the moter-driven treadmill final speed at 27 m/min for four weeks. Stored fats and blood glucose, total cholesterol (TC), high-density lipoprotein cholesterol (HDL-C), triglyceride (TG) were analyzed by enzymatic methods and low-density lipoprotein cholesterol (LDL-C) was calculated by the reference. One-way analysis of variance was performed to comparing mean difference. Glabridin ingestion reduces fat accumulation, LDL-C, atherogenic index (AI) and the supplements lowers TG concentration, significantly (p<.05). These results suggested that Licorice-root-extracted food components ingestion might prevent geriatric diseases with exercise training in trained rats.

체육측정평가 : 우리나라 체육고등학교 학생의 운동종목별 신체조성 및 형태의 특성

이수천(SooChunLee),권태동(TaeDongKwon),김헌경(HunKyungKim) 한국체육학회 1996 한국체육학회지 Vol.35 No.4

Athletics high school students`(male=1,366, female=504) physique, girth, skinfolds thickness, body composition and nutrition intake were investigated. The followings were results. 1. The physique(height, sitting height, weight), girth(chest, abdomen, hip), skinfolds thickness(upper arm, abdomen), body composition(%fat, fat mass, fat free mass) of male and female gymnastics players were significantly lowered than that of other athletics players. 2. Male volleyball and badminton players were taller than other athletics players. 3. 100m running(2 items for male, 8 items for female), high jump(nothing for male, 2 items for female), javelin throwing(2 items for male, 9 items for female), weight lifting(20 items for male, 1 item for female) and wrestling(20 items for male) tended to have a correlation with record. 4. Height weight, girth, skinfolds thickness, %fat influenced male`s air rifle for 50.38%(highest) and archery for 6.86%(lowest), for the female, 400m running for 85.81%(highest) and high jump for 12.48%(lowest) respectively. 5. Among height, weight, girth, skinfolds thickness, %fat, the girth tended to highly contribute the record of athletes. 6. The amount of the nutrition intake of each school was P(22-28%), F(21-28%), and C(51-54%). The rate of PFC was normal. Overall intake was 2,010-2,676Kcal which amount was low relatively.