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태권도 시범 선수들의 성별 및 경력에 따른 스포츠 손상 실태조사
천우광,박주식 한국코칭능력개발원 2022 코칭능력개발지 Vol.24 No.4
본 연구는 태권도 시범(격파) 선수들을 대상으로 성별 및 경력에 따른 손상 실태를 조사하여 지도자와 선수들에게 태권도 격파(시범) 경기에서 발생되는 손상 부위 및 형태에 관한 정보를 제공하고자 한다. 본 연구는 대한태권도협회 선수등록이 완료된 대학 태권도 전공자 260명(남자 207명, 여자 53명)을 대상으로 스포츠 손상실태 조사를 위한 기본정보, 상해유형, 상해 발생 시기, 상해 발생 상황, 상해 발생 원인, 상해 부위, 상해를 유발한 동작, 재활 유·무 등에 관한 설문조사를 실시하였다. 설문조사 결과 첫째, 태권도 시범 선수들의 스포츠 손상 유·무에 관하여 조사한 결과, 남녀 태권도 시범 선수 대부분이 손상 경험이 있었으며, 선수 경력이 3-5년, 6년이상, 2년 이하 순으로 나타났다. 둘째, 태권도 시범 선수들의 시합 및 훈련 간의 스포츠 손상 발생 유·무와 손상 발생 경험이 있는 선수들을 대상으로 시합과 훈련 중 발생한 스포츠 손상을 분석한 결과, 남녀 모두 훈련 상황에서 손상 발생 빈도가 높게 나타났으며, 훈련 상황에서의 손상 발생은 경력이 증가할수록 손상 발생 빈도가 감소하는 것으로 나타났으나, 훈련과 시합 상황 모두를 기준으로하였을 때는 3-5년, 6년이상, 2년 이하 순으로 높게 나타났다. 셋째, 태권도 시범 선수들의 성별에 따른 스포츠 손상 관절 부위를 빈도 분석한 결과, 남녀 모두 발목, 무릎, 발 순으로 높게 나타났다. 넷째, 태권도 시범 선수들의 성별에 따른 스포츠 손상 근육 부위를빈도 분석한 결과, 성별 및 경력별 모두에서 대퇴, 종아리, 허리 순으로 높게 나타났다. 이상의 내용을 종합해 볼 때 태권도 시범 종목 선수 및 지도자들은 손상 방지를 위한 체계적인 훈련과 손상 발생 빈도를 낮추기 위한 방안을 모색해 보아야 할 것으로 사료된다.
천우광,김미진 한국운동영양학회 2013 Physical Activity and Nutrition (Phys Act Nutr) Vol.17 No.2
Our purpose was to investigate the effect of a 5-week high-fat diet on the body weight, blood components [triglycerides (TGs),free fatty acids (FFAs), and glucose], and lipoprotein lipase (LPL) mRNA expression in the skeletal muscles of rats. Body weight increased overtime in experimental and control groups without significant differences. In terms of the blood components, the density of TG was significantly lower in the high-fat diet group compared to the control, whereas FFA and glucose levels were similar in the two groups. Although the levels of glyceraldehyde 3-phosphate dehydrogenase(GAPDH) mRNA expression were similar between the groups, LPL mRNA expression was significantly higher in the high-fat diet group than that in the control group. The results of this study suggest that a high-fat diet enhances LPL mRNA expression, as well as possibly increases fat metabolism. For a better understanding of the relationship between diet patterns and fat metabolism, further analysis of genes related to the fat metabolism is warranted.
운동생리학 : 태권도선수의 체급별 단기 체중감량 후 운동능력 및 생리적 변인의 변화
천우광(WooKwangCheon),김기진(KiJinKim) 한국체육학회 2004 한국체육학회지 Vol.43 No.6
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 blood electrolytes 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 : CD. HW and LW group performed the rapid weight loss program of 3 days through sauna (30min/day) and caloric restriction (18㎉ /㎏/day). LW group showed a decrease tendency of total work output and mean power output in 3 min 3 bouts exercise after rapid weight loss and refeeding diet. Blood K+ concentration significantly (P<.05) decreased after rapid weight loss in LW group. 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.
비만여성들이 편측 웨이트 트레이닝후 신체구성 및 혈중 지질 농도의 변화
천우광,김기진 啓明大學校 生活科學硏究所 1999 科學論集 Vol.25 No.-
The purpose of this study was to investigate the effect of unilateral weight training on the body composition and the concentration of blood lipid of obese women. Fourteen women with %fat over 30% participated in the experiment as subjects, and performed unilateral weight training and jogging for 8 weeks. Overall training included 2 weeks of pre-training session and 8 weeks of training session. During the training session, subjects participated in the 50 min training protocol 3 days a week. For each training protocol, the subject performed weight training of the right side, the intensity of which was 70% of 1 RM. The 1 RM was measured twice, prior to and 4 weeks after the beginning of the training session, and the measured data were used in adjusting the intensity of training. Blood lipid variables, skin fold thickness of 8 sites, and the girth of 10 body segments were also measured before, 4 weeks, and 8 weeks after the beginning of the training session. Results of the study were as the following: 1. Changes in the body composition 1) Thickness of skin fold The skin fold thickness was found to decrease after unilateral weight training in both trained and untrained sides. Although the skin fold thicknesses of the chest and biceps brachii of the trained side were shown to decrease significantly after 4 weeks of unilateral weight training compared to the untrained side, the difference in skin fold thicknesses between the trained and the untrained side was not significant after 8 weeks of training. 2) Body girth The unilateral weight training was shown to affect the girth of upper arm and ankle after 8 weeks of training, the trained side being decreased compared to the untrained side. However, the girth of other body parts was not affected by the unilateral weight training. 2. Changes in blood variables The blood lipid variables were not affected by the unilateral weight training. In conclusion, the unilateral weight training does not seem to have a selective effect on the reduction of fat in the trained side, and the decrease in the skin fold thickness and the girth of body parts in both trained and untrained sides seems to reflect the effect of the amount of overall exercise. Lack of the training effect on the blood lipid variables might have been due to the content and duration of the weight training program.
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.