흰쥐에게 L-ornithine alpha-ketoglutarate 투여가 암모니아농도 및 지구성 운동 수행에 미치는 효과

이근일,염제호,김동제 龍仁大學校 2004 용인대학교 논문집 Vol.22 No.-

As for endurance performance which results in exhaustion of muscle ammonia, plasma ammonia and brain ammonia of the way of restraining or decreasing concentration of ammonia which cause central nervous tissues to be exhausted activity, directly-opposed results to the effect of OKG administration could be noticed and the following conclusions could be obtained on the basis of the outcome from the observation of delaying the exhaustion of central nervous tissues and executive capability for endurance exercise. 1. OKG administration before endurance performance decreased the concentration of muscle ammonia at the time of 30 minutes after exercise and exhaustion through the whole exercise(p<.05). 2. OKG administration before endurance performance decreased the concentration of plasma ammonia at the time of 30 minutes after exercise and exhaustion through the whole exercise(p<.05). 3. OKG administration before endurance performance decreased the concentration of brain ammonia at the time of 30 minutes after exercise and exhaustion through the whole exercise(p<.05). 4. OKG administration before endurance performance increased the duration period of endurance performance by 25 minutes at large(p<.05). The restraint or decrease of the main causes of central nervous tissues which result from endurance performance due to OKG administration before endurance performance could be noticed by this research on animals, and it could be said that OKG administration before endurance performance increase the executive capacity of endurance performance, and since there were more or less insufficient parts to minimize important fallacies which can happen at the experiment on animals, it is more considered that the result of the research should attain to much reliable result through further various researches afterward and the same result are obtained than that it is applied to human being directly to improve techniques of various sports connected with endurance performance.

걷기운동이 비만여성의 체수분의 변화에 관한 연구

이근일,김갑수 龍仁大學校 體育科學硏究所 2002 體育科學硏究論叢 Vol.12 No.1

The thesis has calculated the average (M) and the average deviation (SD) before and after by method of exercises against each analyzing item, so it has inspected a difference between before and after by method of exercises through the pared t-test. The inspection against a difference between the methods of exercises was verified to make a use of the t-test of the independent sample. A change of the bodily constitutions has a significant difference of weight, amount of physical fat, rate of physical fat, rate of abdominal fat, physical water, BMI, BMR through inspection between before and after by exercise methods of one groups of 6.5㎞/h and another group of 5.5㎞/h. There is a statistically significant difference by exercise methods from one groups of 6.5㎞/h and another group of 5.5㎞/h as well as weight, amount of physical fat, BMI and BMR. While it was reduced in rate of physical fat, that of abdominal fat in difference by exercise methods., however, there was no significant difference observed between two groups This study found out to have a more positive effects on the bodily constitutions from 6.5㎞/h than 5.5㎞/h as the result of its performance, The program with the moving speed of walking exercise is very good for a fat woman as an exercise to get rid of fat trouble, as well as the walking exercise is lower than the other exercise in rate of abandonment of the exercise and it is easy for everybody to take exercise. A moving speed of walking exercise have on very good effect on the exerciser when it takes 6.5㎞/h, 50 minutes or more, every five times per week. We needs more study on another sex together with a weight exercise and so on., in order to get rid of the fat trouble.

항산화제 복합비타민 섭취기간에 따른 운동강도별 SOD·CAT 활성도의 변화

이근일,윤상화,김갑수 龍仁大學校 體育科學硏究所 2003 體育科學硏究論叢 Vol.13 No.1

The purpose of this study was to investigate the shift of antioxidant enzymes SOD, CAT for the period of vitamin mixture supplementation during continued exercise. The subjects were consisted of male 14 Korea National Bowlers who have been trained at training center of Korea Sports Council. To know the shift of variables was expreimented at point of before supplement-action, after 4 weeks & 8 weeks at 80%HRmax & 85%HRmax used treadmill by balke protocol. In a day, the 2 capsules were supplemented for 8 weeks with the vitamin mixture containing 500㎎ ascorbic acid of vitamin C, 400I.U a-Tocopherol of vitamin E, 50㎎ β-Carotene, 92.6㎎ selenium. The results of the study can be summerized in the followings ; SOD(superoxide dismutase) activity increased in exercise intensity of 85%HRmax than 60%HRmax before supplementation of vitamin mixture. But, the tendancey of SOD activity was decreased according to the period of supplement. In particular, 85%HRmax after 4 weeks was lower than the exercise intensity of 60%HRmax. It was a result to remove for SOD in high exercise intensity induced much oxygen radical. CAT(catalase) level increased in exercise intensity of 85%HRmax than 60%HRmax before supplementation of vitamin mixture were significantly different between exercise intensities. So, higher CAT activity in high exercise intensity was controled free radical in high exercise intensity. It was expected as a antioxidants when vitamin mixture was supplemented over 4 weeks in exercise intensity of 60%HRmax and 85%HRmax.

엘리트 골프선수들의 영양보조물 섭취형태 및 실태조사

이근일,천윤석,이승훈 龍仁大學校 體育科學硏究所 2011 體育科學硏究論叢 Vol.21 No.1

This study examined and analyzed the intake pattern, purpose and motivation of nutritional supplements(vitamin, mineral, omega3, amino acid, ginseng and oriental medicine) of elite golf players according to their group, education level and career to provide players, parents and instructors with essential preventive resources of side effects by overdose without prior knowledge. Total 174 golf players including 43 professionals and 131 amateur players were specifically analyzed to achieve the goal of the study. Revised questionnaire, based on Chad et al.(1999), Sundgot-Borgen(2003) and Cheon Yoon Seok (2008) initially intended for national players in each country, was used to figure out the status of intake patterns of nutritional supplements of golf players. With SPSS 18.0 program, the collected resources had a cross analysis to examine intake status, purpose and motivation, and multiple response analysis was performed to find out the type of multiple intake by types of supplements. The results are as follows. First, professional players, high school players, long careered players and female players had taken nutritional supplements more frequency than amateur players, college players, short careered players and male players. Second, regarding intakes types of elite golf players by groups, amateur players preferred vitamin, oriental medicine, omega3, mineral and ginseng while professionals preferred vitamin, omega3, oriental medicine, ginseng, amino acid and mineral from a highest to lowest order. Regarding intake types by educational levels, high school players preferred vitamin, oriental medicine, omega and mineral while college students and adults preferred vitamin, omega3, oriental medicine, mineral and amino acid. Regarding intake types by career, players with less than 3 years career preferred vitamin, oriental medicine, omega3, mineral and amino acid, while players with more than 3 years career preferred vitamin, omega3, oriental medicine, ginseng, mineral and amino acid. Regarding intake type by sex, male players preferred vitamin, oriental medicine, omega3, ginseng, mineral and amino acid, while female players preferred vitamin, oriental medicine, omega3, mineral, ginseng and amino acid. Third, the purpose of intake by groups, education level, career and sex was mainly to recover from fatigue rather than to improve muscle strength. Fourth, regarding motivation and recommendation of taking nutritional supplements by groups, professionals took them by the recommendation of parents, themselves, coaches, friends and others, while amateur took them by the recommendation of parents, themselves, coaches and friends). By educational level, high school players took them by the recommendation of parents, themselves, coaches and friends, while college and adult players took them by the recommendation of parents, themselves, coaches, friends and others). By career, players with less than 3 years career took them by the recommendation of parents, themselves, coaches and friends, while players with more than 3 years career took them by the recommendation of parents, themselves, coaches, friends and others). By sex, male players took them by the recommendation of parents, themselves, coaches, friends, and others, while female players took them by the recommendation of parents, themselves, coaches, and friends). The result shows that elite golf players used to take nutritional supplements most frequently by the recommendation of parents.

철 결핍성빈혈이 혈청 지질 및 렙틴농도에 미치는 영향

이근일,김혜영A,강형숙 龍仁大學校 2003 용인대학교 논문집 Vol.21 No.-

The purpose of this study was to investigates the changes in serum lipid and leptin of iron deficiency anemia female gymnasts who excessive training and weight control. The mean age of subject was 17.6 years old. Their mean height was 158.4±4.76cm and mean weight 48.7±4.70kg. Mean body fat percent was 21.2±3.01%, and body mass index was 19.5±1.30 kg/m^2. The mean value of energy and iron intake were 1367.2±360.9 kcal(74±38.0% of the Recommended Dietary Allowance) and 7.1±2.7 mg(38.6±15.8% of RDA), The rate of te 3 major nutrition (P : F : C) was 63 : 26 : 11%. It showed that high fat intake rate. The hemtological status showed hemoglobin(2.3±1.0g/dl), Ferritin(46.7±32.l ng/ml), sTfR(2.8±1.4 mg/L) was low, but in a normal range. Mean serum triglyceride concentration and LDL-cholesterol, Atherogenic index was normal rage, but iron deficient group was higher than normal group(P<.05). Mean Insuin concentration was significantly lower than normal group(P<.05).

스포츠센터 이용자의 참여정도와 여가권태 및 여가만족의 관계

이근일,신승남 龍仁大學校 體育科學硏究所 2003 體育科學硏究論叢 Vol.13 No.2

An Analysis of the Relationship between Sports Center Users' Participation in Physical Activity, Leisure Boredom and Leisure Satisfaction The purpose of this study is to research and analyze the relationship between sports center users' participation in physical activity, leisure boredom and leisure satisfaction. To be more specific, this study examined the effect of level of participation in physical activity - participation frequency, participation intensity and participation duration - on leisure boredom and leisure satisfaction. I used simple random sampling to pick out 312 physical program participants from a population composed of five sports centers in Seoul, Korea in 2003. It is conducted using the Questionnaire on the Relationship between Sports Center Users Participation in Physical Activity, Leisure Boredom and Leisure Satisfaction. The Cronbach's α method gave a subordinate factor-based reliability coefficient of α = .6921 for leisure boredom and α = .9385 (highly reliable) for leisure satisfaction, respectively. The methods for data analysis used for this study include frequency analysis, correlation analysis and regression analysis. Study findings are as follows: 1) As for the participation frequency relating to the level of participation, the effect have a positive correlation with participation intensity(r=.162*), participation duration(r=.147*) and leisure satisfaction(r=.275*) while the effect on participation intensity have a positive correlation with leisure satisfaction(r=.151*). 2) A statistically insignificant difference (5% range) was identified regarding all subordinate factors (i.e., participation frequency(β=.093), participation intensity (β=.075), participation duration(β=.032) 3) A statistically significant difference (5% range) was identified regarding all subordinate factors (i.e., participation frequency(β=.231), participation duration(β=.185)) while a statistically insignificant difference was identified for participation intensity(β=.107). Participation frequency and participation duration have a positive correlation of 12.3%(R²=.123) with leisure satisfaction.

웨이트 트레이닝의 반복횟수가 하지 근력 및 근지구력에 미치는 영향

이근일 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.6

The purpose of this study is to achieve appropriate training protocol by analysing the influence of repetition on muscle strength and endurance. The subjects consisted of 16 female college students aged 20-25years who didn's participate in resistance training program before, and were divided in two groups: high repetition group(n=8) and low repetition group(n=8). Subjects of both groups participated in leg resistance training program 2days per week during 12 wkkes. Repeated measures ANOVA was used to see the effects of training on 1-RM leg strength after 12 weeks. The results of this study are following. 1. There was no significant differences between groups in the test of 1-RM leg strength after 12 weeks. 2. There was no significant differences between groups in the test of leg muscle endurance after 12 weeks.

운동 후 회복을 위한 영양 섭취에 관한 고찰

이근일,박순진,김규수 龍仁大學校 體育科學硏究所 1999 體育科學硏究論叢 Vol.9 No.1

Glycogen stored in body is important energy element for endurance exercise. It is important for fat stored in body to use energy source as well as to use glycogen stored as a limit in muscle and liver. Important issues include supplying of fluid and electrolytes by exercise. Rapid resynthesis of muscle glycogen stores is aided by the immediate intake of carbohydrate particularly of high glycemic index carbohydrate foods, leading to a total intake over 24 hours of proper capacity. Provided adequate carbohydrate is consumed it appears that the frequency of intake, the form and the presence of other macronutrients does not affect the rate of glycogen storage. Practical considerations, such as the availability and appetite appeal of foods or drinks, and gastrointestinal comfort may determine ideal carbohydrate choices and intake patterns. Rehydration requires a special fluid intake plan since thirst and voluntary intake will not provide for full restoration of sweat losses in the acute phase of recovery. Steps should be taken to ensure that a supply of palatable drinks is available after exercise. Sweetened drinks are generally preferred and can contribute towards achieving carbohydrate intake goals. Replacement of sodium lost in sweat is important in maximizing the retention of ingested fluids.

점증적 최대운동이 에너지대사 및 호르몬변화에 미치는 영향

이근일 건국대학교 1993 대학원 학술논문집 Vol.36 No.-

The purpose of this study that were difference emphasize with Norepinephrine in terms of performance. Also, this purpose were judged in terms relative to the performance standards of seven students. 1.At a given plasma Norepinephrine was indicated difference after exercise. (P<0.05) 2.At a given plasma Epinephrine was indicated difference after exercise. (P<0.05) 3.At a given plasma lactate and glucose was not indicated a greater and more rapid increase pulse rate at the beqining of exercise and finished of exercise. (P<0.05) 4.At a given plasma Free Fatty Acid was not indicated in the capacity to ferform exercise.

국가대표급 투척선수의 체력변화 추이에 관한 연구

이근일 中央醫學社 1997 中央醫學 Vol.62 No.10

The purpose of this study was to investigate the levels and changing patterns of physique and physical fitness in national class athletes of short track and jumping, from 1992 to 1996. thus it was presented the basic valuable data for selecting new figures, keeping the abilities of excellent figures, and coaching with positive scientific method to all of the athletes in this fields. Furthermore these data could be used sources as standard criterions for the advanced studies in future. The results of this article were as follows: 1. Physique 1) It was gradually increased in average height 180.8±3.40 cm, upper limb's length 77.6±5.97 cm and lower limb's length 96.9+3.57 cm at the factors of extend growth. 2) In 1991, it was decreasingly measured average chest's record 98.6±2.31 cm at the factors of developed girth. 3) It was significantly changed weight 75.7±2.90 kg, subcutaneous fat 8.57+ 1.32 at the factors of volume. 2. Physical fitness 1) It was continually increased in right grip strength 60.6±8.87 kg, left grip strength 57.0±6.26 kg, and back strength 179±17.10 kg in the case of physical strength for 5 years. 2) It was on the increased sit-up 37.0`3.49 times and pull-up 8.57±1.32 times in muscle endurance. 3) In power, measurements were gradually increased such as broad jump 279.3±10.93 cm, sergeant jump 72.7±1.43 cm, and 1001 run speed 11.39+0.36 seconds. 4) In agility, 10 M shuttle run’s average record was 9.4±0.27 seconds and the side step test's average score was 53.5±1.73 times, so this survey shows that the average record was continually increasing. 5) In coordination factor, 5 time-ruling’s result was 11.3±1.55 seconds which was little increased. 6) Cardio-vascular endurance was shown the significant differences of the results among years and variation. 7) In flexibility factor, trunk extension average record was 65.2±10.06 cm which was significantly progressed in each year, but trunk flexion's average records was nothing to change for experimental years.