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Exercise Adherence, Cardiopulmonary Fitness and Anthropometric Changes Improve Exercise Self-Efficacy and Health-Related Quality of Life.
MedLine Citation:
PMID:  23036856     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
BACKGROUND: Regular exercise increases exercise self-efficacy and health-related quality of life (HRQOL); however, the mechanisms are unknown. We examined the associations of exercise adherence and physiological improvements with changes in exercise self-efficacy and HRQOL. METHODS: Middle-aged adults (N=202) were randomized to 12 months aerobic exercise (360 minutes/week) or control. Weight, waist circumference, percent body fat, cardiopulmonary fitness, HRQOL (SF-36), and exercise self-efficacy were assessed at baseline and 12 months. Adherence was measured in minutes/day from activity logs. RESULTS: Exercise adherence was associated with reduced bodily pain, improved general health and vitality, and reduced role-emotional scores (Ptrend≤0.05). Increased fitness was associated with improved physical functioning, bodily pain and general health scores (Ptrend≤0.04). Reduced weight and percent body fat were associated with improved physical functioning, general health, and bodily pain scores (Ptrend<0.05). Decreased waist circumference was associated with improved bodily pain and general health but with reduced role-emotional scores (Ptrend≤0.05). High exercise adherence, increased cardiopulmonary fitness and reduced weight, waist circumference and percent body fat were associated with increased exercise self-efficacy (Ptrend<0.02). CONCLUSIONS: Monitoring adherence and tailoring exercise programs to induce changes in cardiopulmonary fitness and body composition may lead to greater improvements in HRQOL and self-efficacy that could promote exercise maintenance.
Authors:
Ikuyo Imayama; Catherine Alfano; Caitlin E Mason; Chiachi Wang; Liren Xiao; Catherine Duggan; Kristin Campbell; Karen Foster-Schubert; Ching-Yun Wang; Anne McTiernan
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-10-4
Journal Detail:
Title:  Journal of physical activity & health     Volume:  -     ISSN:  1543-5474     ISO Abbreviation:  J Phys Act Health     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-10-5     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101189457     Medline TA:  J Phys Act Health     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Department of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA.
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