Several individual RCTs demonstrated clinical ly important improvements in pain and disability with aerobic exercise .
Other PT interventions demonstrated no sustained benefit .
Individual RCTs showed similar benefits with aerobic , aquatic , and strengthening exercise .
Adverse events were uncommon and did not deter participants from continuing treatment .
Low-strength evidence suggested that only a few PT interventions were effective .
BACKGROUND Osteoarthritis is a leading cause of disability .
Nonsurgical treatment is a key first step .
PURPOSE Systematic literature review of physical therapy ( PT ) interventions for community-dwelling adults with knee osteoarthritis .
Exercise, self-efficacy, and mobility performance in overweight and obese older adults with knee osteoarthritis.
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 , r and omized , 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
Several individual RCTs demonstrated clinical ly important improvements in pain and disability with aerobic exercise .
Other PT interventions demonstrated no sustained benefit .
Individual RCTs showed similar benefits with aerobic , aquatic , and strengthening exercise .
Adverse events were uncommon and did not deter participants from continuing treatment .
Low-strength evidence suggested that only a few PT interventions were effective .
BACKGROUND Osteoarthritis is a leading cause of disability .
Nonsurgical treatment is a key first step .
PURPOSE Systematic literature review of physical therapy ( PT ) interventions for community-dwelling adults with knee osteoarthritis .