One-hour after-school exercise ameliorates central adiposity and lipids in overweight Chinese adolescents: a randomized controlled trial / 中华医学杂志(英文版)
Chinese Medical Journal
; (24): 323-329, 2011.
Article
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| ID: wpr-321508
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ABSTRACT
<p><b>BACKGROUND</b>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.</p><p><b>METHODS</b>A ten-week weight loss trial was performed using a 2 × 2 block design (exercise × diet). Ninety-three overweight adolescents (average age: (13.6 ± 0.7) years; body mass index (BMI): 22.4 - 34.1 kg/m(2)) 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.</p><p><b>RESULTS</b>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.</p><p><b>CONCLUSION</b>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.</p>
全文:
1
索引:
WPRIM
主要主题:
Physiology
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Therapeutics
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Body Composition
/
Body Weight
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Exercise
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Body Mass Index
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Asian People
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Diet Therapy
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Overweight
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Adiposity
研究类型:
Clinical_trials
限制:
Adolescent
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Child
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Female
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Humans
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Male
语言:
En
期刊:
Chinese Medical Journal
年:
2011
类型:
Article