Document Detail


Accumulated versus continuous exercise for health benefit: a review of empirical studies.
MedLine Citation:
PMID:  19093694     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Current physical activity guidelines endorse the notion that the recommended amount of daily physical activity can be accumulated in short bouts performed over the course of a day. Although intuitively appealing, the evidence for the efficacy of accumulated exercise is not plentiful. The purpose of this review was to compare the effects of similar amounts of exercise performed in either one continuous or two or more accumulated bouts on a range of health outcomes. Sixteen studies met the selection criteria for inclusion in the review, in which at least one outcome known to affect health was measured before and after continuous and accumulated exercise training interventions. Where improvements in cardiovascular fitness were noted, most studies reported no difference in the alterations between accumulated and continuous patterns of exercise. In the few studies where a normalization of blood pressure was observed from baseline to post-intervention, there appear to be no differences between accumulated and continuous exercise in the magnitude of this effect. For other health outcomes such as adiposity, blood lipids and psychological well-being, there is insufficient evidence to determine whether accumulated exercise is as effective as the more traditional continuous approach. Seven short-term studies in which at least one health-related outcome was measured during the 0- to 48-hour period after a single continuous bout of exercise and a number of short bouts of equivalent total duration were included in the review. Many of the studies of such short-term effects considered the plasma triglyceride response to a meal following either accumulated short or continuous bouts of exercise. Collectively, these studies suggest that accumulated exercise may be as effective at reducing postprandial lipaemia. Further research is required to determine if even shorter bouts of accumulated exercise (<10 minutes) confer a health benefit and whether an accumulated approach to physical activity increases adherence among the sedentary population at whom this pattern of exercise is targeted.
Authors:
Marie H Murphy; Steven N Blair; Elaine M Murtagh
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Publication Detail:
Type:  Journal Article; Review    
Journal Detail:
Title:  Sports medicine (Auckland, N.Z.)     Volume:  39     ISSN:  0112-1642     ISO Abbreviation:  Sports Med     Publication Date:  2009  
Date Detail:
Created Date:  2008-12-19     Completed Date:  2009-03-04     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8412297     Medline TA:  Sports Med     Country:  New Zealand    
Other Details:
Languages:  eng     Pagination:  29-43     Citation Subset:  IM    
Affiliation:
Sport and Exercise Sciences Research Institute, University of Ulster, Newtownabbey, County Antrim, Northern Ireland. mh.murphy@ulster.ac.uk
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MeSH Terms
Descriptor/Qualifier:
Adiposity
Body Composition
Exercise / physiology*
Exercise Therapy*
Health Status
Humans
Hyperlipidemias*
Lipids / blood
Motor Activity / physiology*
Physical Fitness*
Time Factors
Chemical
Reg. No./Substance:
0/Lipids

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


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