Document Detail

Accumulating aerobic exercise for effective weight control.
MedLine Citation:
PMID:  14971189     Owner:  NLM     Status:  MEDLINE    
PURPOSE: To compare the effects of different patterns of regular treadmill walking and cycle ergometry on body weight, body composition, waist and hip circumferences in overweight adult Singaporean females. METHODS: Thirty overweight (BMI > 23 kg/m2) Singaporean females, aged 42.2 +/- 5.4 yr (mean +/- SD), all spasmodically physically active, were randomly assigned to two different eight-week programmes of aerobic exercise. One programme involved walking and cycling on indoor exercise machines at a moderate, comfortable intensity until 400 kcals had been expended, five times a week, thus giving a total weekly energy expenditure of 2,000 kcal. The other programme involved the same type of exercise but expending 1,000 kcal per session on two days a week, thereby giving the same weekly energy expenditure. Body weight, body mass index, body composition, waist and hip circumferences were measured before and after each programme. Prior to commencement of the study all subjects attended a one hour seminar on nutrition, health and fitness where the project structure was explained. They were asked not to change their eating habits during the intervention period and food diaries were kept and monitored weekly. RESULTS: All subjects completed the eight-week programmes of exercise. Both programmes significantly reduced body weight, body mass index, percentage body fat and waist circumference (all p < 0.05). These reductions were identical in both the short-bout and long-bout programmes. No changes were observed in either group for hip circumference or lean body mass. CONCLUSION: These findings demonstrated the effectiveness of moderate aerobic exercise in reducing body weight, body fat percentage and waist circumference whilst maintaining lean body mass in moderately overweight Singaporean females. The study also demonstrated that whether the exercise is performed in a series of short bouts five times a week or in longer bouts twice a week, the results are identical, providing that the total weekly energy expenditure remains the same.
Kevin Sykes; Lau Leong Choo; Mary Cotterrell
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Publication Detail:
Type:  Clinical Trial; Journal Article; Randomized Controlled Trial    
Journal Detail:
Title:  The journal of the Royal Society for the Promotion of Health     Volume:  124     ISSN:  1466-4240     ISO Abbreviation:  -     Publication Date:  2004 Jan 
Date Detail:
Created Date:  2004-02-19     Completed Date:  2004-03-25     Revised Date:  2009-03-23    
Medline Journal Info:
Nlm Unique ID:  101499616     Medline TA:  J R Soc Promot Health     Country:  England    
Other Details:
Languages:  eng     Pagination:  24-8     Citation Subset:  IM    
Centre for Exercise and Nutrition Science, Chester College, University of Liverpool.
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MeSH Terms
Bicycling / physiology*
Body Composition
Body Weight / physiology
Exercise Therapy / methods*
Middle Aged
Obesity / prevention & control*
Treatment Outcome
Walking / physiology*

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