리보오스 보충이 최대강도 운동 후 혈중 피로물질 생성에 미치는 영향

Yul Hyo Lee(이율효),Ki Ok Shin(신기옥),Keun Soo Kim(김근수),Young Il Kim(김영일),Jinhee Woo(우진희) 한국생명과학회 2011 생명과학회지 Vol.21 No.5

본 연구에서는 두 가지 투여그룹을 비교하여 ergogenic aid로서 D-ribose의 효과를 운동영양학적으로 규명하는데 그 목적이 있었고, 이를 위하여 2,000 m 조정운동 전, 운동종료 직후, 그리고 운동 종료 후 회복기 30분의 변화를 연구하였으며, 다음과 같은 결론을 얻었다. 첫째, 투여그룹에 따른 2,000 m 조정운동 수행력의 차이는 없었으며 둘째, 투여그룹에 따른 젖산과 암모니아 수치의 차이도 나타나지 않았다. 셋째, 회복 30분에서 무기인산은 PS에 비해서 RS투여그룹의 수치가 더 낮게 나타났으며, 마지막으로 회복 30분에서 hypoxanthine의 축적은 PS투여그룹에 비해 RS투여그룹의 수치가 더 낮게 나타났다. 따라서, 7-8분 정도의 고강도 운동 시 운동기록의 단축에 D-ribose 구강투여의 효과는 없었지만, 휴식 기 피로회복에 긍정적인 효과를 줄 수 있을 것이라 사료된다. The purpose of this study was to examine the effect of D-ribose supplementation on the changes of blood fatigue substances (lactate, ammonia, phosphate and hypoxanthine) after maximal exercise performance in college male students. The experimental trials of each subject were divided into the following conditions: placebo supplement trial and D-ribose supplement trial. The subjects exercised using a Concept Ⅱ Indoor rowing ergometer for 2,000 m Single Skull event. The subjects ingested 200 ㎎/㎏ of D-ribose after breakfast, lunch, dinner, as well as thirty minutes before exercising, for six days. Blood fatigue substances were continuously measured before exercise, immediately after exercise, and thirty minutes after exercise. The results indicated a significant difference in blood phosphate and hypoxanthine levels between the two experimental trials in the 30 minute recovery period (p<0.05). However, there were no significant differences in blood lactate and phosphate levels between the two experimental trials. The results of our study suggest that D-ribose supplementation during maximal rowing exercise for 7~8 minutes may contribute to the improvement of metabolic responses as a beneficial ergogenic aid accelerating fatigue clearance.

트레드밀 운동이 알코올 섭취로 유도된 쥐의 간 손상에 미치는 영향

이율효(Yul-Hyo Lee) 한국복합리조트포럼 2022 관광체육연구 Vol.1 No.2

Purpose: The purpose of this study is to investigate the liver function improvement effect of treadmill exercise on liver damage in rats induced by alcohol consumption. Method: Fifteen male Sprague Dawley (SD) rats were randomly assigned to CO (control group, n=5), AC (alcohol consumption, n=5) ACE (alcohol consumption + exercise, n=5). The treadmill exercise consisted of five times a week for five days and lasted 60 minutes (5 min for warm-up, 50 min for the main exercise, and 5 min for cool-down). Blood samples were taken after 5 weeks of exercise, and serum alanine transaminase (ALT) and aspartate transaminase (AST) were measured using an ELISA kit. The data were analyzed using one-way ANOVA to verify between-group differences in weight and liver damage index. If there was a statistically significant difference, Tukey's post-hoc was performed. Results: There was no weight change after five weeks of exercise intervention. However, ALT and AST were statistically significantly higher in the AC group than in the CO group and the ACE group(p<0.001). Conclusion: In conclusion, treadmill exercise for 5 weeks improves liver function and reduces ALT and AST against alcohol-induced liver damage.

투기 종목 선수의 Functional Movement Screen 비교 분석

이남경(Lee, Nam-Kyung),이율효(Lee, Yul-Hyo),전형필(Jun, Hyung-Pil) 한국체육과학회 2021 한국체육과학회지 Vol.30 No.6

The purpose of this study is to compare the differences on functional movement between Taekwondo Gyorugi and Wushu Santa players, and to provide basic data for preventing injuries and improving performance in combat sport athletes. A total of 40 Taekwondo (TKG) N=20 and Wushu (WSG) N=20 athletes were recruited from Busan, Ulsan, and Gyeongnam regions. Statistical analysis was performed using IBM SPSS for Windows Version 24.0 (IBM Corp., Armonk, NY, USA). An independent t-test was used to verify the difference for each variable of functional movement, and the statistical significance level was set to α<.05. As a result of this study, there was a significant difference in the scores of Total, Deep Squat, Hurdle Step, In-Line Lunge, and Rotary Stability between groups, and the WSG group showed a higher score for all items (p<.05). Also, it found that the WSG score was higher than that of the TKG, but improvement in functional movement is required to prevent injuries in both group. In conclusion, specifically both core exercise and balance training are suggested for injury prevention.

무도전공대학생의 자기결정성과 자아존중감이 대학생활적응에 미치는 영향

서명일 ( Myeong-il Seo ),이율효 ( Yul-hyo Lee ),최병희 ( Byung-hee Choi ) 대한무도학회 2021 대한무도학회지 Vol.23 No.3

본 연구는 무도전공대학생의 자기결정성과 자아존중감이 대학생활적응에 미치는 영향을 규명하는 것에 그 목적이 있다. 이를 위해 무도전공대학생 150명을 연구 대상으로 하였다. 측정 도구는 자기결정성, 자아존중감, 대학생활적응 설문지였다. 설문지의 신뢰도와 타당도를 검증하기 위해 신뢰도 검사와 탐색적 요인분석을 시행하였다. 자료처리는 SPSS 23.0을 사용하여 빈도분석과 상관관계 분석 그리고 다중회귀분석을 시행하였다. 결과는 첫째, 무도전공대학생의 자기결정성이 대학생활적응(정서적 적응, 환경적 적응, 학업적 적응, 사회적 적응)에 긍정적인 영향을 미치는 것으로 나타났다. 둘째, 무도전공대학생의 자아존중감이 대학생활적응(정서적 적응, 학업적 적응, 사회적 적응)에 긍정적인 영향을 미치는 것으로 나타났다. The purpose of this study is to investigate the effect of self-determination and self-esteem of martial art majoring students on college life adaptation. For this purpose, 150 martial arts majoring students were surveyed and statistically analyzed. To analyze the data, frequency, reliability, factor, correlation, and multiple regression analysis were used with the SPSS 23.0. The results of this research were as follows: First, it was found that self-determination of martial art majoring students had a positive effect on college life adaptation. Second, it was found that self-determination of martial art majoring students had a positive effect on college life adaptation.

대학생의 폐활량에 대한 기초체력과 신체활동량의 관계

배주용(Ju Yong Bae),박경진(Kyung Jin Park),김지영(Ji Young Kim),이율효(Yul-Hyo Lee),김지선(Ji-Sun Kim),하민성(Min-Seong Ha),노희태(Hee-Tae Roh) 한국응용과학기술학회 (구.한국유화학회) 2021 한국응용과학기술학회지 Vol.38 No.4

본 연구의 목적은 한국 대학생들의 기초체력과 신체활동량이 폐기능과 상관관계가 있는지를 분석하고, 성별에 따른 차이를 검증하는데 있다. 건강한 참여자 312명(남성 150명[평균연령: 19.29±1.72세], 여성 160명[평균연령: 19.05±1.17세])은 신체조성, 기초체력, 신체활동량 설문지, 그리고 노력성폐활량 (FVC)과 1초간 강제호기량(FEV1)의 폐기능 검사를 수행하였다. 연구결과, 남학생의 폐기능은 우악력과 좌악력, 그리고 배근력과 관련이 있었고, 여학생의 폐기능은 모든 기초체력 하위 요인과 관련이 있었다. 또한 여성의 폐기능은 중강도 신체활동량과 관련이 있는 반면 남성의 폐기능은 신체활동량의 모든 하위 요인과 관련이 있었다. 본 연구의 주요 발견은 폐기능을 개선하기 위해서 남학생은 신체활동량을 증가시키고, 여학생은 기초체력을 향상시킬 필요가 있음을 제안한다. 대학생들의 폐기능을 유지하고 개선시키기 위해서는 폐기능 관련 인자에 대한 성별의 차이를 이해하고, 성별에 맞는 교육적 노력이 필요할 것이다. The purpose of this study was to analyze the correlation between pulmonary function, basic physical fitness (PF), and physical activity (PA), and to compare the differences by gender in Korean college students. Measurements of body composition, basic PF, PA (questionnaire), and pulmonary function tests of forced vital capacity (FVC) and forced expiratory volume in one second (FEV1) using a Quark pulmonary function test were carried out on 312 healthy participants (150 males [mean age: 19.29±1.72 years] and 162 females [mean age: 19.05±1.17 years]). The pulmonary function of male students was related to right-handedness, left-handedness, and back strength, and the pulmonary function of female students was related to all basic PF. The pulmonary function of male students was related to all PA variables, whereas the pulmonary function of female students was related to middle-intensity PA. The findings of this study suggest that male students need to increase PA, and female students need to improve basic PF to sustain a healthy pulmonary function. Understand gender differences for pulmonary function-related factors and the gender-specific educational efforts are needed to improve and maintain pulmonary capacity in college students.

이공학편 : “비행입문과정”입과 전 공군사관생도의 신체구성, 기초체력, VO2max, 등속성 근기능에 관한 연구

김근수 ( Kune Su Kim ),정하진 ( Ha Jin Chung ),김정운 ( Jung Woon Kim ),이율효 ( Yul Hyo Lee ) 공군사관학교 2013 空士論文集 Vol.64 No.2

본 연구의 목적은 ‘비행입문과정’ 입과 전 공군사관학교 생도를 대상으로 신체구성, 기초체력, VO2max, 등속성 근기능을 측정, 분석함으로써 4년간 항공체력단련의 종합적인 성과를 검증하는데 있다. 연구 목적을 달성하기 위하여 남생도 43명을 대상으로 신체구성, 기초체력, 심폐능력, 등속성 근기능을 측정하였다. 실험에서 얻은 자료는 Window SPSS 17.0을 이용하여 평균과 표준편차를 구하였으며, 연구 결과는 다음과 같다. 첫째, 평균 체지방률은 14.54±5.24%였다. 둘째, 평형성은 매우 우수, 근력/근지구력/민첩성은 우수, 유연성/순발력은 보통으로 나타났다. 셋째, 최대산소섭취량은 49.25±3.91ml/kg/min이었으며 무산소성역치는 31.23±3.36ml/kg/min으로 63.1%VO2max 수준이었다. 넷째, 슬관절은 60°/sec에서 H:Q 비율이 우측 62.59%, 좌측 64.30%로 나타났다. 요부관절의 굴근력/신근력을 측정한 결과 60°/sec에서는 73%, 90°/sec에서는 76%로 나타났다. 결론적으로, 공군사관생도들은 심폐지구력, 유연성, 순발력을 향상시킬 수 있는 운동트레이닝을 강화할 필요가 있다. This study seeks to examine overall outcome of four years of aerophysical training by measuring and analyzing body composition, physical fitness, VO2max, and isokinetic muscle function of senior cadets prior to the ``Basic Flight Training``. For these purposes, body composition, physical fitness, cardiorespiratory endurance, and isokinetic muscle function of 43 male cadets were tested. All test results including mean, standard deviation were generated by Windows SPSS 17.0. The results of the research are as follows. First, average body fat percentage was 14.54±5.24%. Second, the results of physical fitness showed that very superior level of balance, superior level of muscular level strength, muscular endurance, agility, and normal level of flexibility and quickness. Third, maximum oxygen consumption was normal level of 49.25±3.91ml/kg/min. Anaerobic threshold was 31.23±3.36ml/kg/min at the level of 63.1%VO2max. Fourth, isokinetic muscle function of the knee joint measured by H:Q ration at 60°/sec were 62.59% on the right, 64.30% on the left. Flexion and extension test of lumbar joint shown 73% at 60°/sec and 76% at 90°/sec. These findings suggest that cadets need intensified training program for cardiorespiratory endurance, flexibility, and quick responses.