L-카르니틴 섭취와 복합운동이 비만여고생의 신체조성, 혈중지질 및 아디포넥틴에 미치는 영향

Combined Effects of L-Carnitine Supplementation and Exercise on the Body Composition, Serum Lipids and Adiponectin in the High School Obese Female Students

본 연구는 10주간 주 3회, 1회 운동시간 50분을 한 결과, 비만여고생을 대상으로 L-카르니틴 섭취와 복합운동이 신체조성, 혈중지질 및 아디포넥틴에 미치는 영향을 구명하기 위하여 체지방률 35% 이상 비만여고생을 대상으로 실험하였다. 신체조성에서는 운동과 카르니틴 섭취를 병행한 군에서 체중, 체지방량 및 체지방률이 유의하게 감소하였고, 제지방량이 유의하게 증가하였다. 혈중지질변화에서는 T-C는 대조군에서 집단 내 변화를 보였으며, TG는 복합운동과 카르니틴섭취를 병행한 군에서 유의하게 감소하였다. 아디포넥틴의 변화에서는 복합운동과 카르니틴섭취를 병행한 군이 유의하게 증가하였다. 이러한 연구결과를 토대로 보다 효과적인 운동프로그램과 적절한 식이요법으로 비만을 개선하는데 효과가 있을 것으로 사료된다.

The purpose of this study was to investgate combined effects of L-carnitine supplementation and exercise on body composition, serum lipids and adiponectin in obese high school female students. Eighteen female students with 35% fat in body weight participated in the study. Students were randomly divided into the following three groups; exercise and L-carnitine supplementation group (ELG: n=5), exercise group (EG: n=6) and control group (CG: n=7), each with seven students. They underwent 10 weeks of exercise (50 min/day, 5 times/wk, 10 wk, RPE 11~16). ELG was given L-carnitine (1 g/day), EG and CG were given placebos. Before and after this period, body composition, serum lipids and adiponectin in plasma were measured. The results of the study in the three groups were as follows: Fat mass and %BF were significantly decreased in ELG. On the other hand, free fat mass was significantly increased in ELG, however, other groups showed no changes. Total cholesterol was significantly increased in the control group. High density lipoprotein cholesterol and low density lipoprotein cholesterol were not different in the three groups. Triglyceride was significantly decreased in ELG. Adiponectin was significantly increased in ELG. This study demonstrated that exercise and carnitine supplementation have a positive effect on fat mass, %BF, free fat mass and adiponetin. Thus, we can improve proper dietary and training programs for obese students.