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지구성 운동선수에 있어서 카르니틴 투여 수준이 운동수행능력에 미치는 영향
최성근(Choi Sung-Keun),임기원(Lim Ki-Won) 한국체육과학회 2000 한국체육과학회지 Vol.9 No.1
To examine the effect of carnitine and caffeine administration on endurance performance in athletes, we made a comparative analyses of the utilization of energy substrates, hormone response and exhaustion time through the single and complex administration of cartinine and caffeine. The results are as follows: 1) As to the respiratory quotient during exercise, the group of carnitine and caffeine complex administration and that of caffeine administration were significantly lower than that of water administration at the 40 and 45 minutes. The group of carnitine administration was also low, but it was not so significant. There was no difference between each group in the oxygen consumption during exercise, the glucose concentration and the triglyceride concentration. The lactate concentration increased in the case of the group of caffeine administration and that of carnitine and caffeine complex administration in comparison with other groups but the difference was not so significant. The free fatty acid concentration during exercise increased continuously in all groups, the rate of increase was lower in the group of carnitine administration and that of carnitine and caffeine complex administration than in the group of water administration and that of caffeine administration. Especially after the 40 and 45 minutes, it was significantly lower in the group of cartinine and caffeine complex administration than in that of caffeine administration. 2) The insulin concentration during exercise tended to decrease continuously in all groups, but there was no significant difference in each group. Epinephrine and norepinephrine showed no difference between each group. 3) The amount of all out time to exhaustion period could be ordered as follows: the group of carnitine and caffeine complex administration, that of carnitine administration, that of caffeine administration and that of water administration.
Effects of swimming program on physiological variables of Obese Women
Choi Sung-Keun(최성근),Nho Ho-Sung(노호성) 한국체육과학회 2000 한국체육과학회지 Vol.9 No.1
본 연구는 K여자대학 평생교육원에 참가한 50명의 중년여성중 비만자로 판정된 11명을 대상으로 3개월간의 수영프로그램이 비만여성의 생리학적 변인에 미치는 영향을 알아보기 위한 것이었다. 모든 피검자들은 일주일에 5회씩 3개월간 수영을 수행하였다. 1회 운동시간은 50분으로 하였으며, 각 영법을 35분, 기술훈련(손동작, 평영발차기)을 15분간 실시하였다. 첫 4주간은 발차기(보드잡고, 자유형, 배영)를 하였고, 5주째부터 운동프로그램이 종료될 때까지 자유형, 배영, 평영 및 각 영법의 발차기를 병행하였다. 수영프로그램중 모든 피검자는 하루에 1,000m씩 수영을 하였다. 식사에 의한 영향을 배제하기 위하여 주 1회 전문지도자에 의해 식사지도를 하였으며, 식사기록에 의해 평상시 섭취량을 유지하도록 최대한 지도하였다. 3개월간의 수영프로그램에 참가한 비만 여성들은 체중과 체지방율 등의 인체측정학적 변인들이 유의하게 감소되었고, 최대산소섭취량은 유의한 증가를 보였다. 혈압은 큰 변화가 없었으나, 혈중 지질성분은 긍정적인 경향을 보여 3개월이라는 비교적 단기간에서도 비만여성의 수영프로그램 참가가 효과적이라는 것이 확인되었다.
The relation between visceral fat and coronary heart disease risk factors in weight loss
최성근(Choi Sung-Keun),정승삼(Joung Seung-Sam) 한국체육과학회 2001 한국체육과학회지 Vol.10 No.1
본 연구는 관상동맥 위험인자를 보유한 중년 비만여성 22명을 대상으로 4개월간 운동과 식이조절을 병행한 감량 프로그램이 심혈관질환 위험인자와 내장지방과의 관계에 미치는 영향을 알아보기 위한 것이었다. 관상동맥 위험인자는 공복시 혈당이 110㎎/dl 이상, 공복시 총 콜레스테롤농도가 220㎎/dl 이상 및 중성지방이 150㎎/dl 이상 그리고 안정시 수축기 혈압 140mmHg 이상 및 확장기 혈압 mmHg 이상의 세가지 항목으로 하였다. 감량프그램의 내용은 식사요법(1,316 ㎉/day)과 운동요법(젖산역치수준의 벤치스템운동을 200-250 ㎉/회, 주3회)을 병행하였다. 감량 프로그램 종료후 관상동맥 위험인자를 한가지도 보유하지 않은 피검자를 관상동맥위험인자의 개선군(10명), 그리고 1가지 이상을 보유한 피검자를 비개선군(12명)으로 구분하였다. 본 연구에서 채택한 감량 프로그램으로 체중, BMI, 체지방율, 허리와 엉덩이 둘레, 내장지방(VFA) 및 피하지방(SFA)과 관상동맥 위험인자수를 유의하게 감소시켰다. 그리고 관상동맥 위험인자의 개선군이 비개선군보다 내장지방의 감소율이 높은 것으로 제시되었고 혈압과 총 콜레스테롤도 같은 양상을 보였다. 따라서 내장지방의 감소율이 높을수록 관상동맥 위험인자의 개선에 효과적이었다. 또한, 관상동맥 위험인자의 보유 가능성을 판정하는 지표로 V/S비가 이용될 수 있다는 것이 확인되었다.
가르시니아 추출물 섭취가 운동 중 에너지 기질 이용에 미치는 영향
최성근(Choi Sung-Keun) 한국체육과학회 2006 한국체육과학회지 Vol.15 No.4
hydroxycitric acid is ingredient extracted from in the rind of fruit garcinia cambogia. HCA is an an inhibitor of ATP-citrate lyase, a cytosolic enzyme that catalyses the cleavage of citrate to oxaloacetate and acetyl-CoA. It has been hypothesized that HCA ingestion can reduce malonyl-CoA concentrations and consequently increase fat metabolism. In this study, the short-term effects HCA on energy substrates utilization during exercise were examined in untrained women. Seven subjects ingested 500㎎ of HCA or a placebo for 5days and did exercise. HCA tended to significantly decrease the respiratory exchange ratio and lactate concentration during 1h of exercise. These results suggested that short-term administration of HCA promotes fat oxidation and spares glycogen utilization during exercise.
지구성 훈련과 L-arginine 섭취가 운동 중 에너지 기질 이용 및 운동수행능력에 미치는 영향
최성근(Choi Sung-Keun),정승삼(Joung Seung-Sam),이천호(Lee Cheon-Ho) 한국체육과학회 2010 한국체육과학회지 Vol.19 No.4
The purpose of this study is to investigate the effect of endurance training and L-arginine supplementation for 6 weeks on energy substrate utilization and endurance performance during exercise in female students at K college. The respiratory quotient decreased in the case of endurance training treated group in comparison with water treated group, but L-arginine treated group is increased. The glucose concentration decreased L-arginine treated group in comparison with water treated group at the 0 and 15 minutes during exercise. The lactate concentration decreased in the case of endurance training treated group and L-arginine treated group in comparison with water treated group from 15 to 60 minutes during exercise. The triglyceride and insulin concentration showed no difference between each treated group. The free fatty acid concentration increased in the case of endurance training treated group in comparison with water treated group from 30 to 60 minutes during exercise, but L-arginine treated group is decreased. The glucagon concentration increased in the case of L-arginine treated group in comparison with water treated group from 15 to 60 minutes during exercise, The amount of all out time to exhaustion period could be ordered as following: water treated group 69.22min, L-arginine treated group 77.11min, endurance training treated group 80.00min. These results suggested that L-arginine supplementation may increase endurance performance same as endurance training.
최성근(Choi, Sung-Keun),김경애(Kim, Kyung-Ae) 한국체육과학회 2019 한국체육과학회지 Vol.28 No.3
The purpose of this study was to examine and relate the body mass index to gherlin and leptin in female university students. 14 female university students, aged 19.36±0.84 years, voluntarily participated in the experiment as subjects. Weight/height2 (kg/㎡) were used for BMI. Blood tests were performed to investigate ghrelin, leptin, insulin, high density lipoprotein (HDL), low density lipoprotein (LDL), total cholesterol (TC) and triglyceride (TG). There was no correlation between body mass index and lipid variables. Body weight was positively correlated with insulin. Body mass index has a positive correlation with the leptin and insulin. In particular, body mass index was identified to be an independent predictor of leptin and insulin concentrations (R²=about 40%).
제지방체중에 의한 최대산소섭취량 판정의 타당성에 관한 연구
최성근(Choi Sung Keun),안응남(An Eung Nam) 경희대학교 스포츠과학연구원 1994 체육학논문집 Vol.22 No.-
The purpose of this study is to examine the validity in evaluation of maximal oxygen uptake by the lean body mass. Through tests and analyses of ten woman object students attending S college, we can draw following conclusions:<BR> 1) In evaluation of maximal oxygen uptake by the lean boby mass, the analised amount of maximal oxygen uptake is overestimated in case the rate of body fat is high.<BR> 2) Even in case of low scored physical fitness, the overestimated amount of maximal oxygen uptake per lean boby mass leads to misinterpretation of physical fitness.<BR> Consequently it follows that the evaluation of maximal oxygen uptake by the lean body mass dose not provide any useful variable in estimation of physical fitness, great care should be taken in applying to the analysis of exercise performance.