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Exercise dose and quality of life : a randomized controlled trial


Reference:

Martin, C. K., Church, T. S., Thompson, A. M., Earnest, C. P. and Blair, S. N., 2009. Exercise dose and quality of life : a randomized controlled trial. Archives of Internal Medicine, 169 (3), pp. 269-278.

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Official URL:

http://dx.doi.org/10.1001/archinternmed.2008.545

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Abstract

BACKGROUND: Improved quality of life (QOL) is a purported benefit of exercise, but few randomized controlled trials and no dose-response trials have been conducted to examine this assertion. METHODS: The effect of 50%, 100%, and 150% of the physical activity recommendation on QOL was examined in a 6-month randomized controlled trial. Participants were 430 sedentary postmenopausal women (body mass index range, 25.0-43.0 [calculated as weight in kilograms divided by height in meters squared]) with elevated systolic blood pressure randomized to a nonexercise control group (n = 92) or 1 of 3 exercise groups: exercise energy expenditure of 4 (n = 147), 8 (n = 96), or 12 (n = 95) kilocalories per kilogram of body weight per week. Eight aspects of physical and mental QOL were measured at baseline and month 6 with the use of the Medical Outcomes Study 36-Item Short Form Health Survey. RESULTS: Change in all mental and physical aspects of QOL, except bodily pain, was dose dependent (trend analyses were significant, and exercise dose was a significant predictor of QOL change; P < .05). Higher doses of exercise were associated with larger improvements in mental and physical aspects of QOL. Controlling for weight change did not attenuate the exercise-QOL association. CONCLUSION: Exercise-induced QOL improvements were dose dependent and independent of weight change.

Details

Item Type Articles
CreatorsMartin, C. K., Church, T. S., Thompson, A. M., Earnest, C. P. and Blair, S. N.
DOI10.1001/archinternmed.2008.545
Related URLs
URLURL Type
http://www.ncbi.nlm.nih.gov/pubmed/19204218/Free Full-text
DepartmentsFaculty of Humanities & Social Sciences > Health
RefereedYes
StatusPublished
ID Code29945

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