The purpose of this study was to examine the effects of exercise training and diet control on serum leptin levels and obesity indexes. Twenty-five overweight high school female students (aged 17.23 0.74, height 161.32 4.80 cm, weight 68.20 7.11 kg, body mass index [BMI] 26.16 2.04 kg/m2) were enrolled in either 8 weeks of aerobic exercise training with dietary intake controls (group ED with 1405.50 123.36 kcal/day, n=13) or exercise training alone (group E, n=12). The training program consisted of jogging for 30 minutes, 3 times/per with exercise intensity at 50-70% heart rate reserve. The results showed that group ED had significant decrease in body weight ( 5.92±2.82 kg, p<.05 ) and body fat percentage (2.78±1.23%, p<.05), group E had significant decrease in body weight (3.18±1.57 kg, p<.05) and body fat percentage (l.52±0.58%, p<.05), and leptin levels had significant changes (p<.05), respectively, on days 1, 28, and 56 for group ED (12.36±3.29 ng/ml, 6.12±2.86 ng/ml, and 8.79 3.49 ng/ml) and group E (10.26±3.32 ng/ml, 7.39±4.11 ng/ml, and 7.58±3.50 ng/ml). These results indicated that eight weeks of regular exercise, with or without diet controls, caused significant decreases in the body weights, BMI, waist/hip ratios, body fat percentage and serum leptin levels of overweight female high school students.
The purpose of this study was to examine the effects of exercise training and diet control on serum leptin levels and obesity indexes. Twenty-five overweight high school female students (aged 17.23 0.74, height 161.32 4.80 cm, weight 68.20 7.11 kg, body mass index [BMI] 26.16 2.04 kg/m2) were enrolled in either 8 weeks of aerobic exercise training with dietary intake controls (group ED with 1405.50 123.36 kcal/day, n=13) or exercise training alone (group E, n=12). The training program consisted of jogging for 30 minutes, 3 times/per with exercise intensity at 50-70% heart rate reserve. The results showed that group ED had significant decrease in body weight ( 5.92±2.82 kg, p<.05 ) and body fat percentage (2.78±1.23%, p<.05), group E had significant decrease in body weight (3.18±1.57 kg, p<.05) and body fat percentage (l.52±0.58%, p<.05), and leptin levels had significant changes (p<.05), respectively, on days 1, 28, and 56 for group ED (12.36±3.29 ng/ml, 6.12±2.86 ng/ml, and 8.79 3.49 ng/ml) and group E (10.26±3.32 ng/ml, 7.39±4.11 ng/ml, and 7.58±3.50 ng/ml). These results indicated that eight weeks of regular exercise, with or without diet controls, caused significant decreases in the body weights, BMI, waist/hip ratios, body fat percentage and serum leptin levels of overweight female high school students.