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RISS 인기검색어
- 검색키워드
- 저자 : Erling Guo (검색결과 4 건)
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Effect of exercise for 12 weeks on NADPH Oxidase and Adiponectin in PVAT of OVX Rats
( Erling Guo ),( Jin-hwan Yoon ),( Wooyeon Jo ),( Jaeho Jin ),( Sang Ki Lee ) 대한운동사협회 2022 대한운동사협회 운동사대회자료집 Vol.2022 No.-
PURPOSE: Perivascular adipose tissue (PVAT) is a type of adipose tissue that surrounds vessels to provide anti-contractile effects. This study aimed to investigate the effect of resistance training on NADPH oxidase, adiponectin, and endothelial NOS (eNOS) expression in the abdominal aorta and PVAT of ovariectomized rats. METHODS: Sprague-Dawley rats at 20 weeks of age were divided into three groups: sham control (Sham, n=10), OVX-control (OVX_ Con, n=10), and OVX-resistance exercise (OVX_Rex, n=10). Resistance training was performed by climbing a ladder for 12 weeks. Western blotting was used to analyze target protein expression in the rat abdominal aorta and PVAT. RESULTS: NADPH oxidase (p67phox) expression was significantly higher in the OVX_Con group than in the sham group, but it was significantly decreased in the OVX_Rex group. The expression of adiponectin, AKT, and eNOS in both abdominal aorta and PVAT was significantly reduced in the OVX_Con group than in the Sham group, but it was improved in the OVX_Rex group. CONCLUSIONS: The results suggest that regular resistance training inhibits p67phox and increases adiponectin expression and phosphorylation of AKT and eNOS in abdominal aortic PVAT of ovariectomized rats.
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저항성운동이 난소절제 모델의 PVAT에서 NADPH Oxidase와 Adiponectin에 미치는 영향
곽이령 ( Erling Guo ),윤진환 ( Jin-hwan Yoon ),조우연 ( Wooyeon Jo ),진재호 ( Jaeho Jin ),이상기 ( Sang Ki Lee ) 한국운동생리학회(구 한국운동과학회) 2021 운동과학 Vol.30 No.2
PURPOSE: Perivascular adipose tissue (PVAT) is a type of adipose tissue that surrounds vessels to provide anti-contractile effects. This study aimed to investigate the effect of resistance training on NADPH oxidase, adiponectin, and endothelial NOS (eNOS) expression in the abdominal aorta and PVAT of ovariectomized rats. METHODS: Sprague-Dawley rats at 20 weeks of age were divided into three groups: sham control (Sham, n=10), OVX-control (OVX_ Con, n=10), and OVX-resistance exercise (OVX_Rex, n=10). Resistance training was performed by climbing a ladder for 12 weeks. Western blotting was used to analyze target protein expression in the rat abdominal aorta and PVAT. RESULTS: NADPH oxidase (p67phox) expression was significantly higher in the OVX_Con group than in the sham group, but it was significantly decreased in the OVX_Rex group. The expression of adiponectin, AKT, and eNOS in both abdominal aorta and PVAT was significantly reduced in the OVX_Con group than in the Sham group, but it was improved in the OVX_Rex group. CONCLUSIONS: The results suggest that regular resistance training inhibits p67phox and increases adiponectin expression and phos phorylation of AKT and eNOS in abdominal aortic PVAT of ovariectomized rats.
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남자 초등학교 학생선수의 운동종목 유형에 따른 체력특성 분석
박희근,이희종,Erling Guo,이상기 한국초등체육학회 2019 한국초등체육학회지 Vol.25 No.3
The purpose of this study was to investigate the difference of physical fitness according to types of sport in male primary school athletes. Male primary school athletes (n=271) were divided into 3 groups: record establishing sports (n=108), rocket sports (n=84), and ball sports (n=79). Physique, physical fitness (muscle strength, muscle endurance, power, flexibility, agility, reaction time, total lung capacity), and professional fitness (anaerobic power, isokinetic knee muscular function) were measured. One way ANOVA and post-hoc was used to conduct verify the difference among the groups. The results of this study were as follows: Physique in ball sports group were significantly higher than record establishing sports and rocket sports group(p<.05). As for physical fitness, muscle strength in ball sports, muscle endurance and agility in rocket sports, and flexibility and total lung capacity in record establishing sports group were significantly higher than other groups, respectively(p<.05). As for isokinetic muscular function, peak torque of extensor in right knee joint of ball sports is significantly higher than other groups, and peak torque of flexor in record establishing sports and ball sports groups were significantly higher than rocket sports groups(p<.05), but peak torque per body weight did not different among the groups. Ratio of flexor and extensor in right side of rocket sports group was significantly ideal compared with record establishing sports and ball sports groups(p<.05). Taken together, it is difficult to generalize the physique and body characteristics according to the types of sport in the elementary school athletes which is the growth period. However we suggest that the provision of theses data is an essential resource and will also be an invaluable guide for professionals to develop and train elementary school athletes. 본 연구의 목적은 남자초등학교 학생선수의 운동종목 유형에 따른 체력특성을 분석하고자 하였다. 연구대상은 남자초등학교 학생선수 271명을 대상으로 기록종목 (108명), 라켓종목(84명), 구기종목(79명)으로 구성되었다. 측정항목은 체격, 기초체력(근력, 근지구력, 순발력, 유연성, 민첩성, 전신반응, 폐활량), 전문체력(무산소성파워, 등속성근관절기능검사)를 실시하였다. 운동종목 유형 간의 체격 및 체력의 차이검증을 위하여 일원변량분석(One-way ANOVA)과 사후분석은 Scheffe 방법을 사용하였다. 본 연구를 통하여 다음과 같은 결과를 얻었다. 체격변인에서는 구기종목 선수가 기록종목과 라켓종목 선수보다 체격이 큰 것으로 나타났으며(p<.05), 기초체력분석 결과 구기종목은 근력요인, 라켓종목은 근지구력과 민첩성, 기록종목은 유연성과 폐활량이 타 종목유형보다 높은 것으로 나타났다(p<.05). 슬관절의 등속성근관절기능검사 결과에서는 우측 신근의 최대파워에서 구기종목이 좌측 신근 최대파워, 좌·우측 굴근 최대 파워에서는 기록종목과 구기종목이 라켓종목보다 유의하게 높게 나타났지만(p<.05), 단위체중당 최대파워에서는 종목유형간 차이가 없는 것으로 나타났다. 우측의 굴근과 신근의 비율에서는 라켓종목이 기록종목과 구기종목보다 유의하게 이상적인 비율을 나타냈다(p<.05). 이상의 결과를 종합해 보면, 성장기인 초등학생선수의 종목유형에 따른 체격 및 체형의 특성을 성인기 선수처럼 일반화하기에는 어려움이 있지만, 초등학생 남자운동선수의 운동종목유형별 체격, 기초(전문)체력의 특성을 근거로 선수발굴이나 훈련프로그램을 구성하기 위한 기초자료의 제공은 의미가 있으리라 생각된다.
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