Document Detail


Inactivity, exercise, and visceral fat. STRRIDE: a randomized, controlled study of exercise intensity and amount.
MedLine Citation:
PMID:  16002776     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Despite the importance of randomized, dose-response studies for proper evaluation of effective clinical interventions, there have been no dose-response studies on the effects of exercise amount on abdominal obesity, a major risk factor for metabolic syndrome, diabetes, and cardiovascular disease. One hundred seventy-five sedentary, overweight men and women with mild to moderate dyslipidemia were randomly assigned to participate for 6 mo in a control group or for approximately 8 mo in one of three exercise groups: 1) low amount, moderate intensity, equivalent to walking 12 miles/wk (19.2 km) at 40-55% of peak oxygen consumption; 2) low amount, vigorous intensity, equivalent to jogging 12 miles/wk at 65-80% of peak oxygen consumption; or 3) high amount, vigorous intensity, equivalent to jogging 20 miles/wk (32.0 km). Computed tomography scans were analyzed for abdominal fat. Controls gained visceral fat (8.6 +/- 17.2%; P = 0.001). The equivalent of 11 miles of exercise per week, at either intensity, prevented significant accumulation of visceral fat. The highest amount of exercise resulted in decreased visceral (-6.9 +/- 20.8%; P = 0.038) and subcutaneous (-7.0 +/- 10.8%; P < 0.001) abdominal fat. Significant gains in visceral fat over only 6 mo emphasize the high cost of continued inactivity. A modest exercise program, consistent with recommendations from the Centers for Disease Control/American College of Sports Medicine (CDC/ACSM), prevented significant increases in visceral fat. Importantly, a modest increase over the CDC/ACSM exercise recommendations resulted in significant decreases in visceral, subcutaneous, and total abdominal fat without changes in caloric intake.
Authors:
Cris A Slentz; Lori B Aiken; Joseph A Houmard; Connie W Bales; Johanna L Johnson; Charles J Tanner; Brian D Duscha; William E Kraus
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Publication Detail:
Type:  Journal Article; Randomized Controlled Trial     Date:  2005-07-07
Journal Detail:
Title:  Journal of applied physiology (Bethesda, Md. : 1985)     Volume:  99     ISSN:  8750-7587     ISO Abbreviation:  J. Appl. Physiol.     Publication Date:  2005 Oct 
Date Detail:
Created Date:  2005-09-14     Completed Date:  2005-12-01     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8502536     Medline TA:  J Appl Physiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1613-8     Citation Subset:  IM    
Affiliation:
Division of Cardiology, Duke University Medical Center, Durham, NC 27710, USA.
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MeSH Terms
Descriptor/Qualifier:
Abdominal Fat / radiography*
Adipose Tissue / radiography*
Adult
Dyslipidemias / radiography*
Energy Intake
Exercise*
Female
Humans
Male
Middle Aged
Oxygen Consumption
Rest
Risk Reduction Behavior
Running
Subcutaneous Tissue*
Time Factors
Tomography, X-Ray Computed
Viscera*
Walking

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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