| Physical activity, total and regional obesity: dose-response considerations. | |
| | |
MedLine Citation:
|
PMID: 11427779 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
PURPOSE: This review was undertaken to determine whether exercise-induced weight loss was associated with corresponding reductions in total, abdominal, and visceral fat in a dose-response manner. METHODS: A literature search (MEDLINE, 1966--2000) was performed using appropriate keywords to identify studies that consider the influence of exercise-induced weight loss on total and/or abdominal fat. The reference lists of those studies identified were cross-referenced for additional studies. RESULTS: Total fat. Review of available evidence suggested that studies evaluating the utility of physical activity as a means of obesity reduction could be subdivided into two categories based on study duration. Short-term studies (< or = 16 wk, N = 20) were characterized by exercise programs that increased energy expenditure by values double (2200 vs 1100 kcal.wk-1) that of long-term studies (> or = 26 wk, N = 11). Accordingly, short-term studies report reductions in body weight (-0.18 vs -0.06 kg x wk(-1)) and total fat (-0.21 vs -0.06 kg x wk(-1)) that are threefold higher than those reported in long-term studies. Moreover, with respect to dose-response issues, the evidence from short-term studies suggest that exercise-induced weight loss is positively related to reductions in total fat in a dose-response manner. No such relationship was observed when the results from long-term studies were examined. Abdominal fat. Limited evidence suggests that exercise-induced weight loss is associated with reductions in abdominal obesity as measured by waist circumference or imaging methods; however, at present there is insufficient evidence to determine a dose-response relationship between physical activity, and abdominal or visceral fat. CONCLUSION: In response to well-controlled, short-term trials, increasing physical activity expressed as energy expended per week is positively related to reductions in total adiposity in a dose-response manner. Although physical activity is associated with reduction in abdominal and visceral fat, there is insufficient evidence to determine a dose-response relationship. |
| | |
Authors:
|
R Ross; I Janssen |
Related Documents
:
|
21655869 - Impaired functional and hemodynamic response to graded exercise testing and its recover... 20358219 - Differences in whole-body fat oxidation kinetics between cycling and running. 8614319 - Ethnicity affects aerobic fitness in us adolescent girls. 21908009 - Exercise capacity and cardiac reserve in children and adolescents with corrected pulmon... 9018509 - Segmental body composition assessed by bioelectrical impedance analysis and dexa in hum... 7920869 - Fatness in relation to substrate oxidation during exercise. 11319199 - Peripheral arterial responses to treadmill exercise among healthy subjects and atherosc... 11954949 - Effects of endoscopic transthoracic sympathicotomy on hemodynamic and neurohumoral resp... 2475699 - Effects of falipamil (aq-a 39) on heart rate and blood pressure in resting and exercisi... |
Publication Detail:
|
Type: Journal Article; Review |
Journal Detail:
|
Title: Medicine and science in sports and exercise Volume: 33 ISSN: 0195-9131 ISO Abbreviation: Med Sci Sports Exerc Publication Date: 2001 Jun |
Date Detail:
|
Created Date: 2001-06-27 Completed Date: 2001-08-02 Revised Date: 2007-11-15 |
Medline Journal Info:
|
Nlm Unique ID: 8005433 Medline TA: Med Sci Sports Exerc Country: United States |
Other Details:
|
Languages: eng Pagination: S521-7; discussion S528-9 Citation Subset: IM; S |
Affiliation:
|
School of Physical and Health Education, Queen's University, Ontario, Canada. rossr@post.queensu.ca |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Abdomen Adipose Tissue Adult Aged Energy Metabolism* Exercise* Female Humans Male Middle Aged Obesity / physiopathology, therapy* Physical Fitness* Randomized Controlled Trials as Topic Viscera Weight Loss |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Dose-response and coagulation and hemostatic factors.
Next Document: Physical activity and cancer risk: dose-response and cancer, all sites and site-specific.