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비만여성의 연령대별 12주간 복합운동이 신체구성과 건강관련 체력 및 혈중지질농도의 변화에 미치는 영향
천우광(Woo Kwang Cheon) 한국발육발달학회 2007 한국발육발달학회지 Vol.15 No.1
This study analyzed the comparison of body composition and serum levels of lipid profiles by adult women`s age between obese and non-obese group. 59 volunteers participated as subjects in this study, and they were divided to 2 groups as obese group(n=25) over a body mass index(BMI) of 25 kg/m2 and non-obese group(n=34) less than BMI of 25 kg/m2, which was divided into four various age groups. The measured data of body composition and serum levels of lipid profiles lipids were analyzed with 3-way repeated ANOVA using SPSS. Result were as follows: There statically were significant differences between obese group and non-obese group in all age in skinfold thickness and body circumference(p<0.05). In summary, this study showed that: Body weight(BW), %Fat, BMI and Health related physical fitness were significantly (p<.05) decreased in two groups after 12 weeks. serum levels of lipid profiles was not significant between two groups. Therefore, the results of this study suggest that 12-week combined exercise program can significantly reduce the body composition and Health related physical fitness in obese women. Also these results suggest that 12-week combined exercise program may have beneficial effects lipid profiles in obese women.
장기간의 복합운동트레이닝이 노인들의 체력 및 보행능력에 비치는 영향
천우광(Cheon Woo-Kwang),엄대영(Eum Dae-Young),변재철(Byun Jae-Chul),박진기(Park Jin-Kee) 한국체육과학회 2010 한국체육과학회지 Vol.19 No.3
BACKGROUND: Poor balance control, mobility restrictions, and fall injuries are serious problem for many older adults. OBJECTIVE: The purpose of this study was to examine the effects of physical fitness and walking abilities on compound exercise training (CET) during 24 weeks in older adults. METHOD: One hundred seven older adults were participated in compound exercise training (≥65 yr). Compound exercise training program was done three times per week, and exercise time was 60-70 minutes an each day. Initiating a program increased the gradually for 40% to 70% HRR. The established for adults for aerobic exercise training, balance control and other resistance exercise such as walking, dance, water walking, aquarobic, balance ball, and theraband pursuits. RESULTS: CET was performed three times per week and at a 40-70% HRR intensity. CET resulted in a significant improvement in physical ability such as back muscle strength, muscle endurance and agility. Futhermore, CET was a significant improved on 10m walking and the repeated 2.5m walking speed in older adults. CONCLUSIONS: The Compound exercise training may be an effective way to improving physical functioning in older people, including improving muscle strength, walking performance and delay mobility impairment in older adults.
운동강도별 12주간의 웨이트트레이닝이 퇴행성 무릎관절염환자의 ROM과 근기능에 미치는 영향
천우광(Woo Kwang Cheon),박기덕(Gi Duk Park) 한국발육발달학회 2009 한국발육발달학회지 Vol.17 No.2
The purpose of this study is to examine the effects of intensive exercise on range of motion and muscle function in osteoarthritis and investigate proper intensive exercise. Method: Eighteen eldery women with osteoarthritis were participated and randomly assigned to intensive exercise programme or to a conservative exercise programme during their period with a mean length for 12 weeks. Nine testees were in each group. Two exercise programme of range of motion and muscle function were assessed at 12 weeks. The results as follows: Both groups improved in measure of range of motion after exercise. Moreover, both the intensive and conservative exercise groups improved in the change of peak torque of extention muscle. In the change of peak torque of flexion muscle, a right of leg of the conservative exercise group improved and both legs were improved in intensive exercise group. Measures of Leg extention, Leg curl, Leg abduction and Leg press in 1RM improved significantly for patients in two groups. Conclusion: Exercise programme in osteoarthritis is more effective in improving range of motion and muscle function.
대학 야구선수 타자들의 배트스피드, 정확성, 선구안과 타율과의 관련성 분석
천우광(Cheon, Woo-Kwang),하대호(Ha, Dae-Ho) 한국체육과학회 2013 한국체육과학회지 Vol.22 No.3
The purpose of this study is to analyze batting-related factors and the respective batting average. Subjects include 10 baseball players curently studing in K university in D city. The 10 players were divided into two groups; 5 from the High batter group, and 5 from the Low batter group for the purpose of this research. Video analysis was used for the research of bat speed and accuracy. In total, 120 videos were created and edited for analysis, and the batters were given orders to determine the type of ball thrown, and whether the ball was a strike or not. Results showed that in comparison of the bat speed of the High batter group and the Low batter group, the bat speed of the High batter group was statistically significantly higher (p<.05). In batting accuracy, the Low batter group showed significantly higher results (p<.01). The average batting showed statistically significant relations with the T-batting maximum velocity of batting (p<.05) and the T-batting average speed (p<.01), and the Free-batting average accuracy (p<.05). TMS regression intercept (β=739) and its changes showed significant influence at the 5% statistically significant level, and the explanation of the changes of batting average resulting from changes of TMS showed R2=.546, and therefore increased the predictability by 54.6%. Regression
태권도선수의 체급차이에 따른 단기체중감량후 신체구성의 변화
천우광 ( Woo Kwang Cheon ),김기진 ( Ki Jin Kim ) 한국운동영양학회 2004 Physical Activity and Nutrition (Phys Act Nutr) Vol.8 No.3
Taekwondo players perform at the lowest weight class possible in order to gain a competitive advantage. The major technique of rapid weight loss was using a combination of the dehydration, fasting, and increased exercise in taekwondo players. This study examined the changes of body composition after rapid weight loss of about 5% through dehydration and caloric restriction of 3 days. Subjects were 24 college-aged male taekwondo players, and divided to three groups as the heavy-weight (n=6: HW), light-weight (N=6: LW) and control(n = 6: CO). HW and LW group performed the rapid weight loss program of 3 days through sauna (30 min/day) and caloric restriction (18 kcal/kg/day). Body weight significantly (p<.05) decreased after rapid weight loss in HW and LW group, but percent body fat showed no significant difference. In HW group, upper arm skinfold thickness, waist, hip, thigh circumference, and in LW group, waist, thigh circumference, abdominal, supra-iliac skinfold thickness significantly (p<.05) decreased after rapid weight loss as compared to before weight loss. From these results, the rapid weight loss through dehydration and caloric restriction of 3 days showed no significant change in body composition, but reduced a preferential reduction suggested the imbalance of blood electrolytes after rapid weight loss.
단기간 운동수행이 쥐의 골격근에서 지질대사 관련유전자의 mRNA 발현해석
천우광(Woo Kwang Cheon) 한국발육발달학회 2007 한국발육발달학회지 Vol.15 No.2
The purpose of this study was an analysis of the effect of acute exercise performance in mRNA level expression of lipid metabolism association gene in soleus muscle of rat. Methods; Twenty male wistar rats(5 wk) were used as the subjects. They were exercised on the treadmill at 20 m/min, 20 m/min and 30 m/min for 15days. The measured data of body weight and lipid metabolism association gene were analyzed with 2-way repeated ANOVA using SPSS statistics (version 11.0). Result were as follows: Body weight (BW) were significantly (p<.05) increased in two groups after 15days. FATP was significantly(p<.05) increased in exercise group, but LPL CPT1b, FAT and FABP in two groups showed no significant change after 15days. In conclusion: 15days acute exercise improves obese indices, body weight in two groups, but there was no effects in mRNA level expression of lipid metabolism association gene in soleus muscle of rat.