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운동생리학 : 장시간의 수영운동이 streptozotocin에 의한 당뇨 유발 흰쥐의 골격근 부위별 GLUT 4와 글리코겐 함량에 미치는 영향
남일호(IlHoNam),김규완 한국체육학회 2005 한국체육학회지 Vol.44 No.5
The effect of a 3 hour session of aerobic exercise on the concentration of muscle GLUT4 protein and glycogen in skeletal muscles of different types, i.c. soleus, red and white gastrocnemius, was evaluated in diabetic and non-diabetic Sprague Dawley rats.Diabetes was induced by 60mg/kg Streptozotocin injection and swimming was performed during 3 hours in animal swimming pools.There were no significant differences in muscle characteristics between groups (diabetic or non-diabetic groups). Insulin concentration was lower in the DMEX(Diabetes Mellitus Exercise) group (50.46±24.20pmol/l) compared to the NDMEX(Non Diabetes Mellitus Exercise) group (132.40±18.20pmol/l) and glucose concentration was higher in the DMEX group (692.2±45.4mg/dl) than in the NDMEX group (156.2±7.0mg/dl, p<.05). GLUT4 and glycogen concentrations were significantly different between groups and were significantly affected by exercise. GLUT4 after exercise was higher in red gastrocnemius (113.46±19.84%) and white gastrocnemius (58.68±14.46%) than control (p<.05). Glycogen concentration after exercise in DMEX group was higher in white gastrocnemius than soleus (p<.05). There was no change in GLUT4 or glycogen in soleus. In summary, this study has shown that prolonged exercise using the present animal model increases muscle GLUT4 and decreases the glycogen concentration of skeletal muscle. But the effect of exercise on GLUT4 and glycogen concentration are affected by diabetes, skeletal muscle composition and specific muscle recruitment.
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사회체육학 : 전일제 생활체육 지도자의 이직의도에 대한 경로분석
김혁출(HyeokChulKim),남일호(IlHoNam),오정규(JeongKyuOh) 한국체육학회 2005 한국체육학회지 Vol.44 No.6
This study aims to find out how job stress among full-time sports instructors can affect job satisfaction, work performance, life satisfaction, and their intention to change jobs through path analysis, and then propose measures to decrease the instructors’ impulses to change jobs and minimize the actual rate of people changing jobs. The National Council of Sports For All designed a questionnaire survey for789 full-time instructors. A total of 545 instructors participated in the survey, and a total of 502 responses were actually utilized in the analysis. For this study, the questionnaire made by Um, Gwang Seop(2001) and Cheon, Yong Deuk (1998) concerning job satisfaction, life satisfaction, work performance, and impulse to change jobs was use dafter it was modified by the researcher, while the questionnaire about stress was made by the researcher after consulting with various experts. The results of this study are as follows. First, job stress affects job satisfaction. That is, if the interactions among job characteristics, relationships with senior personnel, and the compensation system are high among full-time sports instructors, job satisfaction is also high. Second, job stress affects work performance. That is, if the interactions among job characteristics, relationships with senior personnel, and the compensation system are high among full-time sports instructors, work performance is also high. Third, job stress affects life satisfaction. That is, if the interactions among job characteristics, relationships with senior personnel, and the compensation system are high among full-time sports instructors, life satisfaction is also high. Fourth, job satisfaction affects one’s decision about changing jobs. That is, if the interaction of job satisfaction is low among full-time sports instructors, their intention to change jobs is also high. Fifth, work performance affects intentions to change jobs. That is, when the interaction of work performance is high among full-time sports instructors, their intention to change jobs is also high. Sixth, life satisfaction affects one’s intention about changing jobs. That is, if the interaction of life satisfaction is low among full-time sports instructors, their intention to change jobs is high. Seventh, job stress affects one’s intention about changing jobs. That is, if the interaction of job stress is low among full-time sports instructors, their intention to change jobs is high.
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운동영양학 : 카테킨 복합물 섭취와 수영훈련이 흰쥐의 혈중지질과 복부지방량 변화에 미치는 영향
손희정(HeeJungSon),김효정(HoyJeongKim),남일호(IlHoNam),어수주(SuJuEo),김창근(ChangKeunKim) 한국체육학회 2005 한국체육학회지 Vol.44 No.1
This study was to performed to investigate the effect of catechin compound ingestion (CCI) and swimming training on the blood lipid profiles and abdominal fat mass in rats. The CCI and swimming training were performed for 6 weeks (60 minute-day^(-1), 5 days-week^(-1)). All animals divided into 4 groups; control group (n=6; CON), catechin ingestion (250㎎/day, n=6; CAT1), catechin ingestion(500㎎/day, n=6; CAT2), catechin and exercise (500㎎+lhr swimming, n=6; CAT2EX). The CON and CAT2 group show lower abdominal subcutaneous and visceral fat mass (p<.05). Also, CAT2EX group shows lower abdominal subcutaneous and visceral fat mass than those of the CON (p<.05). After six weeks of interventions no significant difference was found in total cholesterol (TO, high density lipoprotein (HDL) concentration, triglycerides (TG) in all groups, whereas low density lipoprotein (LDL) concentration in CAT2EX was lower than CON (p<.05).In conclusion, both CCI and CCI with swimming exercise training may play a role in the control of abdominal fat mass. These results indicate that exercise training with CCI could be more beneficial than CCI itself for not only LDL cholesterol but also anti-abdominal obesity.
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