신체활동량에 따른 남자대학생의 체력 및 Functional Movement Screen 분석

이율효,최현민 한국융합과학회 2022 한국융합과학회지 Vol.11 No.4

Purpose This study aimed to investigate variations in physical fitness and functional movement screening results according to the level of physical activity in male college students. Methods Thirty participants were recruited in this study and were divided into the Physically Inactive Group (PIG; n=10), Minimal Physical Activity Group (MPAG; n=10), and Physically Active Group (PAG; n=10) based on the International Physical Activity Questionnaire-long form (IPAQ-LF). Data were analyzed using one-way ANOVA to evaluate between-group differences in the variables of physical fitness and functional movement screening. Tukey’s test was also performed as the post-hoc test. Result The results of physical activity screening showed that participants in the PIG showed significantly lower levels of grip strength (p<.01) and sit-and-reach (p<.05) than those in the PAG. Moreover, participants in the PIG showed significantly lower levels of back muscle strength (p<.001) and 30-second sit-up (p<.001) than participants in both the MPAG and PAG. Similarly, results of functional movement screening showed that participants in the PIG had significantly lower levels of deep squat (p<.01), in-line lunge (p<.05), and trunk stability push-up (p<.05) than participants in the PAG. Conclusion In conclusion, physical inactivity leads to the risk of musculoskeletal injuries. The findings of this study on exercise capacity and injury prevention in male college students provide reliable data that can be applied in clinical practice. 연구목적 본 연구의 목적은 남자대학생들의 신체활동량에 따른 체력 및 기능성 움직임 검사의 차이를 규명하는 것이다. 연구방법 국제신체활동설문(IPAQ-LF) 조사를 바탕으로 신체활동 그룹(Physical inactive group; PIG) 10명, 최소한의 신체활동 그룹(Minimal physical activity group; MPAG) 10명, 신체활동 그룹(Physical active group; PAG) 10명을 연구대상자로 모집하였다. 그룹 간 체력 및 기능성 움직임 검사 변인의 차이검증을 위해 일원변량분석(One-way ANOVA)를 이용하여 자료처리를 하였으며, 사후검증(post-hoc)은 Tukey로 실시하였다. 결과 체력검사 결과, PIG는 악력(p<.01)과 앉아 윗몸 앞으로 굽히기(p<.05) 검사에서 PAG에 비해 유의하게 낮았으며, 배근력(p<.001)과 30초 윗몸 일으키기(p<.001) 검사에서는 MPAG, PAG에 비해 유의하게 낮게 나타났다. 기능성 움직임 검사결과, PIG는 딥 스쿼트(p<.01), 인라인 런지(p<.05), 몸통 안정성 푸쉬 업(p<.05) 검사에서 PAG에 비해 유의하게 낮게 나타났다. 결론 신체비활동은 잠재적으로 근골격계 부상의 위험에 노출되어 있다. 본 연구는 남자대학생의 운동 능력 및 부상예방과 관련하여 현장에서 적용 가능한 신뢰할 수 있는 연구로 제시한다.

남자대학생의 기능성 움직임 검사(FMS)에 관한 체질량지수의 영향

이율효,이태원,김인기 한국체육무용과학회 2022 Journal of Sport and Dance Science Vol.2 No.2

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.

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.

남자 대학생의 최대산소섭취량과 운동 후 회복률 간의 상관관계 분석

우진희,이율효 한국사회체육학회 2023 한국사회체육학회지 Vol.- No.92

Purpose: This study aims to analyze changes in heart rate recovery (HRR) and lactate recovery rate (LRR) after the graded maximal exercise test in physically active male college students, and to investigate the relationship between three factors (V· O2max, HRR, and LRR) closely related to exercise performance. Method: The subjects (22 males) conducted a one-way repeated measure sANOVA to analyze changes in heart rate recovery and lactate recovery rate according to the graded maximal exercise test, and Bonferroni correction was applied for multiple comparisons. In addiotin, the relationship between the three fa-c tors was verified by the Pearson correlation coefficient. Results: Heart rate recovery (9.18%, p<.001) and lactate recovery rate (14.14%, p<.01) showed the most significant recovery patterns 1 minute after the exercise load test. Maximum oxygen uptake (V· O2max) did not appear to correlate with heart rate and lactate recovery rate, but heart rate recovery and lactate recovery rate showed a positive correlation (p<.05). Conclusion: Monitoring heart rate recovery and lactate recovery rate is suggested as essential for developing programs to control exercise intensity parameters.

유산소 운동 강도가 아동기 비만 쥐의 비알코올성 지방간 완화에 미치는 영향

배주용,고강은,이율효 한국융합과학회 2022 한국융합과학회지 Vol.11 No.6

Purpose Most studies on nonalcoholic fatty liver disease (NAFLD) focused on the subject in middle-aged or elderly adults. However, the negative effects of temporary high-fat diet may differ according to age, and the effective intensity of exercise for alleviation of NAFLD may also differ according to age. The purpose of this study was to examine the changes in hepatic steatosis caused by temporary high-fat diet and to analyze the effect of aerobic exercise intensity on NAFLD in young-aged mice. Methods 4 weeks old male C57BL/6 mice were classified into a normal diet group (CO, n = 8) or a high-fat diet group (HF, n = 24). HF group consumed a high-fat diet for 8 weeks. After then, HF group was randomly assigned to the HF+non-exercise group (HF, n = 8), HF+low-intensity aerobic exercise group (HFLE, n = 8), and HF+high-intensity aerobic exercise group (HFHE, n = 8). The mice in the exercise group conducted aerobic exercise 5 times a week for 8 weeks at their exercise intensity. Results After 8 weeks of high-fat diet, body weight, liver weight, liver TG, and liver lipid droplets in the HF group were significantly increased. However, although fat synthesis-related factors were still high, regular exercise was effective in relieving fatty liver by increasing carnitine palmitoyl transferase-1 and phospho AMP-activated protein kinase proteins. In addition, high-intensity aerobic exercise effectively reduced liver TG and lipid droplets compared to low-intensity aerobic exercise. Conclusion High-intensity aerobic exercise was more effective in alleviating NAFLD than low-intensity exercise by decreasing the liver weight and liver TG. Therefore, high-intensity exercise can be recommended as an effective exercise for alleviating NAFLD in childhood. 연구목적 NAFLD에 관한 대부분의 연구는 중년 또는 노년 등의 성인에게 초점을 맞추고 있다. 하지만 일시적인 고지방 식이섭취로 인한 부정적인 효과는 연령에 따라 다르게 나타날 수 있으며, 또한 NAFLD를 완화하기 위한 효과적인 운동 강도 역시 연령에 따라 다를 수 있다. 본 연구에서는 아동기 쥐의 일시적인 고지방 식이 섭취로 인한 간 지방증의 변화를 살펴보고, 유산소 운동 강도가 NAFLD에 미치는 영향을 분석하고자 하였다. 연구방법 4주령의 수컷 C57BL/6 쥐를 분양받아, 일반식이 섭취군 (CO, n = 8)과 고지방식이 섭취군 (HF, n = 24)으로 분류하였다. HF군은 8주간의 고지방 식이를 섭취하였으며, 그 후, HF군의 쥐들은 무작위로 HF+비운동군(HF, n = 8), HF+저강도 유산소운동군(HFLE, n = 8), 그리고 HF+고강도 유산소운동군(HFHE, n = 8)으로 분류하였다. 운동군의 쥐들은 자신의 운동강도로 8주간 주 5회의 유산소 운동을 실시하였다. 결과 고지방식이 8주 후 HF 그룹의 체중, 간 무게, 간 TG 및 간 지방 방울이 유의하게 증가했다. 그러나 규칙적인 운동은 지방합성 관련인자를 유의하게 증가시켰지만, carnitine palmitoyl transferase-1과 phospho AMP-activated protein kinase 단백질을 증가시킴으로써, 지방간 완화에 효과적인 것으로 나타났다. 또한, 고강도 운동은 저강도 운동에 비해 간 TG 및 지방 방울 감소에 효과적인 것으로 나타났다. 결론 고강도 유산소 운동은 저강도 운동보다 간의 무게와 간 TG를 현저하게 감소시킴으로써 NAFLD 완화에 더 효과적이었다. 따라서 아동기에 NAFLD를 완화시키는 효과적인 운동으로 고강도 운동을 권장할 수 있음을 제안한다.

태권도선수와 수련생 간의 상지 및 하지 무산소성 능력의 차이 분석

최현민,류성돈,UDO MOENIG,이율효 대한무도학회 2023 대한무도학회지 Vol.25 No.2

The purpose of this study is to analyze the difference in anaerobic capacity between the upper and lower extremities and to identify the relationship between the anaerobic capacity of the upper and lower extremities in male university taekwondo athletes and trainees. 12 male college taekwondo athletes (TKDA) and 12 taekwondo trainees (TKDT) were randomly recruited as subjects. An independent t-test was used to determine the differences between the groups’ anaerobic capacity test variables. In addition, the Pearson correlation coefficient (PCC) was analyzed to verify the relationship between the anaerobic capacity of the upper and lower limbs. As a result of the lower extremity anaerobic capacity test, the TKDA group exhibited significantly higher relative peak power and relative mean power compared to the TKDT group (p<.001). As a result of the correlation between the anaerobic capacity of the upper and lower extremities, the highest positive correlation was observed between the rPP of the upper extremity and the rPP of the lower extremity. It is suggested that Wingate anaerobic test(WAnT) can be helpful in setting goals by monitoring and evaluating the progress of taekwondo training. 본 연구의 목적은 남자 대학 태권도 선수와 수련생을 대상으로 상지와 하지의 무산소성 능력에 대한차이 분석과 상⋅하지 무산소성능력 간의 관계를 규명하는 것이다. 남자 대학 태권도선수(Taekwondo athletes; TKDA) 12명과 태권도 수련생(Taekwondo trainees, TKDT) 12명을 대상으로 임의로 모집하였다. 그룹 간 무산소성 능력 검사 변인의 차이검증은 독립 t-검정(independent t-test)을 이용하였다. 또한상지와 하지 무산소성 능력 사이의 관련성을 검증하기 위해 피어슨 상관관계를 분석하였다. 하지 무산소성 능력 검사 결과, TKDA 그룹은 상대적 피크 파워와 상대적 평균 파워에서 TKDT 그룹에 비해 유의하게 높게 나타났다(p<.001). 상지와 하지의 무산소성 간의 상관관계 결과, 상지 rPP와 하지 rPP에서 가장높은 정적 상관관계를 보였다(r=.744). 윈 게이트 검사는 태권도 훈련 진행사항을 모니터링하고 평가하여목표설정을 수립하는데 도움이 될 수 있을 것이라 제언한다.

최대산소섭취량 수준이 혈중 젖산과 심박수 회복률에 미치는 영향

우진희,이유리,김병현,한상근,이율효 한국사회체육학회 2022 한국사회체육학회지 Vol.- No.89

Purpose: The purpose of this study was to investigate the effect of heart rate recovery and lactate recovery after a graded exercise test in male college athletes with different Maximal Oxygen Uptake Levels Method: One hundred-three participants were recruited for this studya nd were divided into the Bes t Group (n=34), Excellent Group (n=35), and Standard Group (n=34). Data were analyzed using a twoway ANOVA to evaluate between-group differences in the variables of blood lactate recovery (5, 10, 15, 30 min) and heart rate recovery (5, 10, 15, 30 min) after the graedd exercise test. Duncan test was also pe-r formed as a post-hoc test. Results: After the graded exercise test, the best group showed a sigfniciantly lower heart rate than the excellent group at 5 minutes of heart rate recovery (p<.001). As a result of blood lactate recovery, the Best Group was significantly lower in blood lactate recovery 10 and3 0 than the excellent group and the sta-n dard group (p<.001). Conclusion: Consequently, it was found that the high capacity of VO2max did not affect heart rate recovery and lactate recovery. However, the Best Group recorded the lowest heart rate at 5 minutes of recovery, suggesting the potential for heart rate recovery 5.

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.

제 2형 당뇨 마우스의 운동 형태가 ẞAmyloid, BDNF 및인지기능에 미치는 영향

김도연,우진희,신기옥,노희태,이율효,윤병곤,박찬호 한국응용과학기술학회 2020 한국응용과학기술학회지 Vol.37 No.3

본 연구는 서로 다른 운동유형이 당뇨처치 그룹의 베타 아밀로이드, BDNF 및 인지기능에 미치는 영향을 알아보기 위하여 24마리의 C57BL/6 쥐를 당뇨처치를 하지 않은 그룹 6마리(통제그룹: 6)와 당뇨처치 그룹 18마리로 무작위 할당하여, 이를 다시 당뇨처치 그룹의 경우 통제그룹 6마리, 유산소 운동그룹 6마리, 저항운동 그룹 6마리로 나누었고 운동그룹은 8주간 주 5회 저강도로 각각 트레드밀 운동과 사다리 운동을 실시하였다. 그 결과 베타아밀로이드는 8주 후 당뇨처치 그룹의 통제그룹 (DM.G.)이 나머지 세 그룹에 비하여 높은 수준을 나타내었으나 통계적으로 유의한 차이는 나타나지 않았다. BDNF의 경우는 당뇨통제그룹이 나머지 세 그룹에 비하여 낮은 수준을 나타냈으며 통계적으로 유의한 차이를 나타냈다(p<.05). 인지기능을 알아보기 위한 Y미로 검사에서도 당뇨통제 그룹이 나머지 세그룹에 비하여 낮은 수준을 보였으며 통계적으로도 유의한 차이를 나타냈다(p<.05). The purpose of this study was to investigate the effects of different types of exercise training on ẞAmyloid, BrainDerived Nerurotrophic Factor(BDNF) and cognitive function in mice with Diabetes Mellitus Group(DM.G). 24 male C57BL/6 mice were randomly assigned to the control (C.G. n = 6) and Diabetes Mellitus Group(DM.G. n = 18) groups. After the Diabetes Mellitus induction period, the DM group was subdivided into DM.G. + sedentary (DM.G., n = 6), DM.G. + endurance exercise (A.G, n = 6), and DM.G. + resistance exercise (R.G., n = 6). The A.G. and R.G performed treadmill and ladder climbing exercises 5 times per week for 8 weeks, respectively. After 8 weeks the results are as follows: ẞAmyloid showed higher levels of DM.G. than in A.G., R.G., and C.G., but was not statistically significant(p>.05). BDNF was significantly lower in DM.G. than in C.G., A.G., and R.G.(p <0.05). The Ymaze task performance for cognitive function was significantly lower in DM.G. than in C.G., A.G., and R.G.(p <0.05). These results predict that diabetes can negatively affect ẞAmyloid, BDNF and cognitive function. It can also be predicted that lowintensity exercise can positively improve ẞAmyloid, BDNF and cognitive function regardless of the type of exercise.