Document Detail

Exercise, self-efficacy, and mobility performance in overweight and obese older adults with knee osteoarthritis.
MedLine Citation:
PMID:  16208674     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To examine changes in mobility-related self efficacy following exercise and dietary weight loss interventions in overweight and obese older adults with knee osteoarthritis (OA), and to determine if self efficacy and pain mediate the effects of the interventions on mobility task performance. METHODS: The Arthritis, Diet, and Activity Promotion Trial was an 18-month, single-blind, randomized, controlled trial comparing the effects of exercise alone, dietary weight loss alone, a combination of exercise plus dietary weight loss, and a healthy lifestyle control intervention in the treatment of 316 overweight or obese older adults with symptomatic knee OA. Participants completed measures of stair-climb time and 6-minute walk distance, self efficacy for completing each mobility task, and self-reported pain at baseline, 6 months, and 18 months during the trial. RESULTS: Mixed model analyses of covariance of baseline adjusted change in the outcomes demonstrated that the exercise + dietary weight loss intervention produced greater improvements in mobility-related self efficacy (P = 0.0035), stair climb (P = 0.0249) and 6-minute walk performance (P = 0.00031), and pain (P = 0.09) when compared with the healthy lifestyle control intervention. Mediation analyses revealed that self efficacy and pain served as partial mediators of the beneficial effect of exercise + dietary weight loss on stair-climb time. CONCLUSION: Exercise + dietary weight loss results in improved mobility-related self efficacy; changes in these task-specific control beliefs and self-reported pain serve as independent partial mediators of the beneficial effect of exercise + dietary weight loss on stair-climb performance.
Brian C Focht; W Jack Rejeski; Walter T Ambrosius; Jeffrey A Katula; Stephen P Messier
Related Documents :
1996724 - Altered sympathetic control of nutrient mobilization during physical exercise after les...
17507344 - Effects of different doses of physical activity on cardiorespiratory fitness among sede...
23134144 - Decreased nerve growth factor upregulation is a mechanism for reduced mechanical hypera...
15193004 - Correlates of body mass index, weight goals, and weight-management practices among adol...
18471024 - Determining design and scale-up parameters for degradation of atrazine with suspended p...
22137254 - Prognostic value of exercise echocardiography in patients with hypertrophic cardiomyopa...
Publication Detail:
Type:  Clinical Trial; Journal Article; Randomized Controlled Trial; Research Support, N.I.H., Extramural; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Arthritis and rheumatism     Volume:  53     ISSN:  0004-3591     ISO Abbreviation:  Arthritis Rheum.     Publication Date:  2005 Oct 
Date Detail:
Created Date:  2005-10-11     Completed Date:  2005-11-04     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  0370605     Medline TA:  Arthritis Rheum     Country:  United States    
Other Details:
Languages:  eng     Pagination:  659-65     Citation Subset:  AIM; IM    
Ohio State University, Columbus, 43210, USA.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Activities of Daily Living
Diet, Reducing*
Exercise Therapy*
Knee / physiopathology
Life Style
Middle Aged
Movement / physiology*
Obesity / complications,  diet therapy*
Osteoarthritis, Knee / complications,  diet therapy*
Pain / physiopathology
Pain Measurement
Single-Blind Method
Treatment Outcome
Weight Loss
Grant Support

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

Previous Document:  Use of complementary and alternative medicine by persons with arthritis: results of the National Hea...
Next Document:  Comparison of three comorbidity measures for predicting health service use in patients with osteoart...