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).

급성 족관절 외측 인대 파열의 수술적 치료

이근일,노수인,최익수,Lee, Keun-Il,Roh, Su-In,Choi, Ik-Su 대한족부족관절학회 2001 대한족부족관절학회지 Vol.5 No.1

Purpose: To find out the priority of which procedure has had a better outcome both clinically and radiographically between the two groups, one is treated by primary repair and the other by modified Brostr$\ddot{o}$m's procedure, by comparing the postoperative ankle joint stability and the patient's degree of satisfaction. Material and methods: 16 cases were taken into consideration whose number of severed ligaments were at least two or more of the lateral collateral ligaments of the ankle, and also were confirmed intraoperatively. Among them, 8 cases were treated with primary repair and the other 8 cases were treated with primary repair and the other 8 cases by modified Brostr$\ddot{o}$m's procedure. Results: There was no distinguishable difference for the patient's degree of satisfaction between the two procedures above mentioned. In 3 cases treated with primary repair, functional instability was observed. In case of postoperative ankle joint stability, 7 of 8 cases treated by modified Brostr$\ddot{o}$m's procedure has revealed increased joint stability. And 3 of 8 cases which were treated by primary repair have showed postoperative residual instability. Conclusion: Actually, the severed ligament can not maintain its normal strength though several months has elapsed, and possible residual instability could be remained. Therefore, it can be expected that modified Brostr$\ddot{o}$m's procedure also would be a .good method in obtaining suitable ankle joint stability as well as subtalar joint stability because of its reinforcement using extensor retinaculum.

柔道選手의 體力變化 推移에 關한 硏究 : 國家代表級 選手를 中心으로

李根一,李雄基 建國大學校 敎育硏究所 1991 論文集 Vol.15 No.-

The purpose of this study was to analyze transformation of physical fitness in Korean Male Judo National-Class Representatives for 5 years, 1986∼1990, and to contribute consequent data for predicting the changeful state of physical fitness in the meantime with national-class representatives, and to provide the critical data for chooing new figures in rank-holding judo experts and furthermore for scientific training programs. The results of this article with pointing out the structure and the function of physical fitness were summarized as follows: 1.Structure There were not significant differences among the items, but it was found that only Chest Girth is different in weight class of -64, -71, -86, and -95㎏. 2.Function There were something to differ from: Shuttle Run in -65㎏, Trunk Flextion and Rolling in -78㎏, Stand Long Jump and Rolling in -86㎏ respectively, but the other items have no distingushed difference.

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.

Effects of potato and lotus leaf extract intake on body composition and blood lipid concentration

이근일,김종규,이남주,박석,조현철,천윤석 한국운동영양학회 2015 Physical Activity and Nutrition (Phys Act Nutr) Vol.19 No.1

Keuneil Lee, Jongkyu Kim, Namju Lee, Sok Park, Hyunchul Choand Yoonseok Chun. Effects of potato and lotus leaf extractintake on body composition and blood lipid concentration. JENB., Vol. 19, No. 1, pp.25-30, 2015 [Purpose] The purpose of thisstudy was to investigate the effects of potato and lotus leaf extract intake on body composition, abdominal fat, and blood lipidconcentration in female university students. [Methods] A total of 19 female university students participated in this 8-week study,and they were randomly assigned into 2 groups; potato and lotus leaf extract (skinny-line) administered group (SKG, n=9) andplacebo group (PG, n= 10). The main results of the present study are presented below. [Results]1) Body mass index, and percentbody fat and abdominal fat in students of the SKG showed a decreasing tendency without significant interaction, 2) total cholesterol(TC), triglyceride (TG), and low density lipoprotein (LDL-C) in students of the SKG showed an averagely decreasing tendencyand there was a significant interaction of TC only, 3) high density lipoprotein (HDL-C) in students of the SKG showed an increasingtendency without significant interaction, and 4) Z-score of fatness testing interaction in group × repetition did not show a significantinteraction; however, there was a significant interaction of TC in group × repetition. Based on these results, 8-week intake ofpotato and lotus leaf extract had a positive effect of lowering TC. On the other hand, it had no significant effect on other typesof lipids and percent body fat changes. [Conclusion] There was a positive tendency of blood lipids in students of the SKG andit seems that potato and lotus leaf extract intake might prevent obesity and improve obesity related syndromes. [Key words]Lotusleaves, potatoes, body fat, blood lipids

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 중 지방 대사에 대한 고찰

이근일,백병주,김의영,김도준,조용철,정훈,조재혁 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

Glucose-fatty acid cycle is very important because it explains that fatty acid influences glucose level. Glucose-fatty acid cycle is the key factor to understand how endurance training which aids fat oxidation and carbohydrate stored in skeletal muscle influence mitochondria level. However, it is not certain whether glucose-fatty acid cycle influences exercising skeletal muscle of human being. As an energy resource, training increases use of fatty acid, endurance ability, and oxidation of triglyceride. During high level training, catecholamine secretions and restraint of fatty acid use caused by insulin increases dramatically, this results in reduction of free fat acids and reunification of free fat acids into triglyceride. Training restrains insulin activity and reduces plasma acid density, however, elite athletes have high triglyceride-fatty acid cycle. Although enzyme's activities and mitochondira's density increase after training, it's not certain that enzyme's activities is major factor in restraint of fatty acid oxidation in exercising muscle cells. Stores of fat leads to increases of fat oxidation, performance and reduces use of carbohydrate, however, there is no absolute evidence to support these results.

카로틴이 운동에 미치는 영향

이근일 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.4

As a result defence effect of active oxygen of B-carotene proves that it is different with homeostasis of vitamin as a provitamin. The B-carotene have advantage because it is only catabolizes witamin A and no by-effect. In addition to the rest of B-carotene protect hart disease, cataract, antioxidant and cancer as a disymmetry dismtegration. The continuing exercise effect antioxidant because B-carotene eleminates free radical. If we do extream exercise suddenly, ability of immunity body is decreasing and dangerousness infection is increasing. Otherwise if we do exercise regularly and continusely, ability of immunity is increasing, therefore we could keep good health.

아마추어 마라톤 러너의 호흡순환기능에 관한 연구

이근일,신민철 한국스포츠리서치 2003 한국 스포츠 리서치 Vol.14 No.4

The effects of prolonged endurance training on maximal O₂ uptake in the older people and its determinants were studied, by comparing 1) 7 older endurance athletes(62.5±2.6yrs), 2) 7 middle-aged long distance runners(34.7±3.1yrs), 3) 7 older(61.3±3.8yrs) and 4) 7 middle-aged(33.7±3.1yrs) untrained counterparts, maximal O₂ uptake of the older athletes(50.4±4.1ml/㎏/min) was 67% higher than that of the older untrained men, 28% lower than that of the middle-aged runners, and identical to that of the middle-aged untrained men. The maximal heart rate was 9% lower in the older athletes than in the middle-aged runners(170 vs. 186beats/min). No significant difference in maximal heart rate was observed between the athletes and the nonathletes of the respective age-group. On the other hand, the O₂ pulse at maximal O₂ uptake of the older athletes(0.30±0.03ml/㎏/beats) was 14% lower than that of the middle-aged athletes, but 67 and 15% higher than that of the older and middle-aged untrained men, respectively untrained men, respectively. These results suggest that the lower maximal O₂ uptake of the older endurance athletes is derived from both the lower maximal heart rate and the lower O₂ pulse at maximal O₂ uptake in comparison with the middle-aged athletes.

뉴스포츠 참여 중학생들의 신체적 자기효능감과 체육수업 만족이 학교생활적응에 미치는 영향

이근일,전신옥 龍仁大學校 2008 용인대학교 논문집 Vol.26 No.-

The purpose of this research is to compare and analyze the physical self-efficiency and physical education satisfaction due to existence of new sports physical education class, and school life adaptation. Also by systematically analyzing the relationship of cause factors, we will understand the primary affecting cause due to attending physical education. Moreover by effectiveness proof close examination of new sports in physical education, we wish to help in creating healthy leisure culture for teenagers to develop mentality and provide foundation for life-time physical education activities. In order to achieve this goal, this research tested one middle school which practices new sports physical education program and two middle schools which practices regular physical education. 3 classes from each school, total of 9 classes have been tested and 302 questionnaire papers were passed out. Out of these papers, 294 papers were valid after material arrangement, and have been final analyzed. With above research purpose and method as basis, hypothesis about the affect physical self-efficiency and physical education satisfaction of middle school students adjustmenting new sports has on school life adjustment has been verified. After doing so, the below results has been induced. First, physical self-efficacy had meaningful difference according to physical exercise experience. Second, physical education satisfaction had no meaningful difference according to physical exercise experience, but showed to have influential power. Third, School life adaptation had meaningful difference according to physical exercise experience. On the other hand, school surrounding adaptation had no meaningful difference according to physical exercise experience, thus it shows that it is not related. Fourth, physical self-efficacy showed to have difference according to recognized health status. Fifth, Physical self-efficacy of students participating in new sports education and general physical education did not have meaningful difference. Sixth, Physical education satisfaction of students participating in new sports education and general physical education did have partial differences. Seventh, School life adaptation of students participating in new sports education and general physical education did have partial affective power. Eighth, Physical self-efficacy did showed to have partial positive affect on the physical education satisfaction. Ninth, Physical education satisfaction did showed to have positive affect on school life adaptation. Lastly, in school regulation adaptation, when physical education guidance material satisfaction and physical education environment satisfaction has co-relationship, physical education guidance material satisfaction showed to have negative co-relationship, thus as physical education guidance material satisfaction increases the school regulation adaptation decreases. In addition, physical education environment adaptation has positive relationship, thus as physical education environment adaptation increases, school regulation adaptation increases. As shown, in school physical education non experienced new sports is having direct and indirect affect on student’s physical self-efficacy, physical education satisfaction, and school life adaptation. Moreover physical self-efficacy has partial affect on physical education, and physical education satisfaction has direct relationship has school life. Thus we found out that these three causes are co-related.