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규칙적인 운동과 F1, 6DP의 투여가 유산소지구력 및 항산화능에 미치는 영향
이종우(Lee Jong-Woo),하민수(Ha Min-Soo),이천호(Lee Cheon-Ho),박석(Park Sok) 한국체육과학회 2009 한국체육과학회지 Vol.18 No.3
This study investigated effects of regular exercise and F1, 6DP supplement on endurance exercise capacity and antioxidant capacity in rats. Male Sprague-Dawley rats were randomly assigned to one eight groups(n=8): sedentary control group, exercied control group, F1, 6DP supplemented group and exercised F1, 6DP supplement group. F1, 6DP supplemented group, and exercsied F1, 6DP supplement group. Rats were fed experimental diets supplemented with F1, 6DP at the level of 10 ㎎/㎏/day for 4 weeks. Rats of exercised control group, F16-DP supplemented group and exercised F1, 6DP supplement exercised groups performed swimming exercise training at 60 min/day for 4 weeks. Exhaustive swimming time(endurance exercise capacity) was significantly increased in exercised control group, F1, 6DP supplemented group, and exercised F1, 6DP supplement group compared to the value for sedentary control group. Total antioxidant capacity was significantly higher in exercised control group, F1, 6DP supplemented group, and exercised F1, 6DP supplement group than sedentary control group. Free radical release was significantly lower in exercised control group FI, 6DP supplemented group, and exercised F1, 6DP supplement group than sedentary control group, These results indicate that F1, 6DP appear to be effective in enhancing enduranced exercised performance and antioxidant capacity of trained rats.
4주간의 에어로빅스 운동의 노인 여성의 혈중 지질 성분과 골밀도에 미치는 영향
하민수(Ha Min-Soo),이상호(Lee Sang-Ho),김태영(Kim Tae-Young) 한국체육과학회 2008 한국체육과학회지 Vol.17 No.2
The puppse of this study is to investigate the effects of aerobics exercise on blood lipid factors(TC, TG, HDL-C, LDL-C) and bone mineral density(spine and femoral), and to provide and maintain this information for aerobics exercise. In order to measure the change of blood lipid factors and bone mineral density by aerobics exercise in the elderly women for 4weeks(4 times/week, 60min/day), the subjects are ten. The statistical analysis of the results is carried out paired sample t-test. The results were as follows: 1. The total cholesterol and LDL-C after aerobics exercise has not significant difference(p>.05). 2. The TG and HDL-C after aerobics exercise has significant difference(p<.05). 3. The spine and femoral bone mineral density after aerobics exercise has significant difference(p<.05). These results suggest that this aerobics exercise can improve the change ability of TG, HDL-C and bone mineral density.
하민수(Ha Min-Soo) 한국체육과학회 2002 한국체육과학회지 Vol.11 No.1
The purpose of this study was to compared the fat oxidation after exercise following resistance exercise(1-RM of 60%) and aerobic exercise(VO₂max of 60%). The subjects of study were consisted of ten untrained male college students(19.3±0.5 years). This study was designed to compare the fat oxidation after exercise following two exercise types. For both exercise types, resistance and aerobic exercise was energy consumption of total 300㎉ during exercise(aerobic exercise; 298.6±2.9㎉, resistance exercise; 297.8±2.1㎉). The dependant variables in this study consisted of four parts, metabolic variables(VO₂, RER), EPOC, total energy consumption and fat oxidation after exercise. To compare the difference of metabolic variables rest and recovery period, 2×8 repeated measure two-way ANOVA was used. EPOC, total energy consumption and fat oxidation during recovery period was used t-test. The statistical significance was set at 0.05. The results were obtained as following, first, VO₂ during recovery was higher significantly than the rest(until 5min, p<.05). RER was significantly decreased after resistance exercise(p<.05). Second, result of EPOC and total energy consumption was higher significantly after aerobic exercise(p<.05). The results suggest that EPOC has aerobic exercise higher compared with the resistance exercise, thus exercise prescription for weight loss and fat oxidation following exercise include aerobic exercise. However resistance exercise is recommended, because fat oxidation ratio was higher during recovery period by resistance exercise.
단기간의 카테킨 섭취가 운동후 회복기 지방연소 및 혈중 지질성분에 미치는 영향
하민수(Ha Min-Soo),지치환(Jee Chi-Hwan),김정석(Kim Jung-Suk),박석(Park Sok) 한국체육과학회 2010 한국체육과학회지 Vol.19 No.3
The purpose of this study was to examine the effects of catechin supplement on fat oxidation, free fatty acids (FFA) and triglyceride (TG) following two different treatments (placebo [PL] and catechin [CT])). Seven healthy male collegiate students participated as subjects after signing an informed consent. The submaximal exercise intensity of this study was the maximal fat oxidation exercise intensity (MFOEI) of subjects. To comparative analysis on the effect of lipid metabolism after exercise (300 kcal) after short-term supplement of catechin for three days it was compared the respiratory exchange ratio(RER), fat kilocalories (Fkcal), FFA and TG following every treatment methods. First, there were not significant differences in fat oxidation included RER and Fkcal among treatment methods. However, the RER values was decreased in the CT and the Fkcal values was increased in the CT than PL. Second, there were significant differences in FFA and TG among treatment methods(p<.05). The TG of CT was significantly higher than PL at 10min of recovery. The FFA concentration of CT was significantly higher than PL at 30 min of recovery. Especially, CT treatment has high than PL for recovery periods. In summary, results of this study revealed that catechin have the beneficial effects on fat oxidation and glycogen sparing by fat metabolism facilitation. Although the detailed molecular mechanism by which catechin enhances fat use during exercise remains to be elucidated, activation of lipid metabolism in skeletal muscle is believed to be a key factor.
하민수(Min-Soo Ha),손환정(Hwan-Jung Son),김종규(Jong-Kyu Kim),박영철(Young-Chul Park) 한국기계가공학회 2010 한국기계가공학회지 Vol.9 No.6
This study proposes a structural design method for the upper control arm installed at the rear side of a SUV. The weight of control arm can be reduced by applying the design. In this research, the former includes optimization technology, and the latter the technologies for selecting aluminum as a steel-substitute material. Strength assessment is the most important design criterion in the structural design of a control arm. At the proto design stage of a new control arm, FE (finite element) analysis is often utilized to predict its strength. In this study, the kriging interpolation method is adopted to obtain the minimum weight satisfying the strength constraint and durability criteria. The optimum results determined from the in-house program are compared with those of ANSYS WORKBENCH. The durability assessment is obtained by a index of fatigue durability and trial & error method, MSC. Fatigue program.
운동강도에 따른 지방연소량과 지방 연소 관련 호르몬의 변화 연구
이상현(Lee Sang-Hyoun),이용수(Lee Yung-Soo),이상호(Lee Sang-Ho),하민수(Ha Min-Soo) 한국체육과학회 2003 한국체육과학회지 Vol.12 No.2
This study aimed to analyze the change of fat oxidation and hormones which related fat oxidation such as insulin, cortisol and growth hormone by three exercise intensities(40%VO₂max, MFOEI;maximal fat oxidation exercise intensity and 75%VO₂max). Seven healthy male collegiate students participated as subject after signing an informed consent it was determined the MFOEI using indirect calorie measurement method during graded maximal exercise test in the treadmill (Bruce protocol). The MFOEI was defined as the intensity which resulted in using respiratory exchange ration(RER) and a Lusk table. To analyze the purpose of this study it was compared the fat oxidation(Fkcal) and related hormones during submaxiaml exercise(resting, exercise 10min, 30min, 60min). The result were as follows: First, During submaximal exercise, Fkcal was the significantly higher at MFOEI in comparison with 40%VO₂max but no difference with 75%VO₂max. Second, there was no significant difference insulin among exercise intensities. The cortisol was the significantly highest at 75%VO₂max in comparison with other exercise intensities at 60min period. Also, the growth hormone was the significantly highest at 75%VO₂max in comparison with other exercise intensities at 60min period. In conclusion, as prescribe exercise program for treatment and prevention of obesity, there is a possibility of application of MFOEI which should be considered the individual conditions include age, gender, and level of physical fitness. And hormones of fat oxidation which included insulin, cortisol and growth hormone have no a direct effect to oxidize fat during submaximal.