Use the Back button in your browser to see the other results of your search or to select another record.

Detailed Search Results

One-hour after-school exercise ameliorates central adiposity and lipids in overweight Chinese adolescents: a randomized controlled trial
Sun M-X, Huang X-Q, Yan Y, Li B-W, Zhong W-J, Chen J-F, Zhang Y-M, Wang Z-Z, Wang L, Shi X-C, Li J, Xie M-H
Zhonghua Yi Xue Za Zhi [Chinese Medical Journal] 2011 Feb;124(3):323-329
clinical trial
5/10 [Eligibility criteria: Yes; Random allocation: Yes; Concealed allocation: No; Baseline comparability: Yes; Blind subjects: No; Blind therapists: No; Blind assessors: No; Adequate follow-up: Yes; Intention-to-treat analysis: No; Between-group comparisons: Yes; Point estimates and variability: Yes. Note: Eligibility criteria item does not contribute to total score] *This score has been confirmed*

BACKGROUND: The prevalence of overweight and obesity in Chinese children and adolescents was increasing during the past few decades. The goal of this study was to investigate the effects of after-school exercise with or without diet restriction on total and central obesity, fitness level, and metabolic profile in overweight Chinese adolescents. METHODS: A ten-week weight loss trial was performed using a 2x2 block design (exercise x diet). Ninety-three overweight adolescents (average age 13.6 +/- 0.7 years; body mass index (BMI) 22.4 to 34.1 kg/m2) were randomly assigned to four groups: (1) diet (D); (2) exercise (EX); (3) diet plus exercise (DEX); and (4) overweight control (C). Caloric intake recipes were enacted based on individual age and corresponding ideal body weight. One-hour after-school exercise was performed once per day, four days per week for ten weeks. Changes of anthropometry, body composition, aerobic fitness, and metabolic biomarkers were determined. RESULTS: Groups D, EX and DEX had a significant decrease in BMI (p < 0.01) after the intervention. The percentage of body and truncal fat, and waist circumference were independently reduced by exercise (p < 0.05 and p < 0.01), but not diet. The decrease in body fat percentage was positively related with the exercise compliance (r = 0.34, p = 0.01). Exercise decreased truncal fat percentage and waist circumference, suggesting a reduction of central adiposity, but did not significantly affect body weight and BMI. Exercise significantly reduced serum low-density lipoprotein cholesterol (p = 0.037), which was positively correlated with decreases of truncal fat percentage (r = 0.222, p = 0.048). No significant effects of interventions on insulin sensitivity, early insulin release index, and aerobic fitness were observed. CONCLUSION: At least twice a week of one-hour after-school exercise significantly attenuated central adiposity and had a significant impact on lipid profiles in overweight Chinese adolescents.

Full text (sometimes free) may be available at these link(s):      help