과학문명의 발달과 교통수단의 발전은 사람들의 신체활동을 적극적으로 줄어들게 하였고, 서구화된 식생활 형태와 고칼로리 위주의 인스턴트 음식섭취는 비만의 발병률을 급격하게 증가시키고 있으며, 그 연령층 또한 낮아지는 경향을 보이고 있다(강창균 등 2008). 이는 우리나라 20세 이상 성인 비만율이 1995년도의 14.8% 이던 것이 현재 31.8%로 10년 동안 두 배 이상 증가 되었다는 이성계 등(2008)의 연구 보고로 알 수 있다. 비만은 과잉 섭취된 에너지가 체내의 중성지방으로 축적된 상태로서 총 콜레스테롤(total cholesterol), 중성지질(triglyceride), 저밀도 지단백 콜레스테롤
The purpose of this study was to investigate the effects of 12 weeks jump rope exercise on plasma lipids and ghrelin in obese children. The twenty four elementary school children (% body fat higher than 30%) were volunteered for this study. They were randomly devided into jump rope exercise group (EXE n=12) and control group (CON n=12). The protocol of jump rope skipping exercise was 1000-3000 repetitions/5 days/12 weeks. The repetitions of jump rope were progressively increased for whole training period. Measured variables were body weight, VO2max, % body fat, ghrelin, TC, TG, HDL-C, LDL-C. Each of the measured data was calculated by Mean±SD, and processed statistically through the repeated two-way ANOVA (α<.05). Results of this study were as follows, body weight and % body fat of the EXE were significantly decreased after 12 weeks aerobic exercise. Ghrelin and HDL-cholesterol of the EXE were significantly increased after 12 weeks jump rope exercise. However, blood lipids which were plasma total cholesterol, LDL-cholesterol, and triglycerides were not changed after 12-week training. In conclusion, the results of this study suggested that 12-weeks jump rope exercise significantly affected both % body fat and ghrelin, but not blood lipids except for HDL-cholesterol in obese elementary children. Therefore, ghrelin increase in response to overweight reduction from an exercise intervention in obese children. ※ Key words : blood lipids, ghrelin, jump rope exercise, obese children
Ⅰ. 서론 Ⅱ. 연구 방법 Ⅲ. 연구결과 Ⅳ. 논의 및 결론 참고문헌 ABSTRACT
