For patients with knee OA there is limited evidence that a lower level of physical function is associated with a lower level of physical activity .
There is also limited evidence that depression is not associated with the level of physical activity .
For patients with hip OA there is limited evidence that higher age , higher body mass index ( BMI ) and a low level of physical function is associated with a low level of physical activity .
CONCLUSION A high age ( hip OA ) , a high BMI ( hip OA ) and a low level of physical function ( both hip and knee OA ) are related to a low level of physical activity .
OBJECTIVE To give an overview of factors related to the level of physical activity  in patients with hip or knee osteoarthritis ( OA ) .
Does Adherence Make a Difference?: Results From a Community-Based Aquatic Exercise Program
Background Evidence exists demonstrating the benefits of exercise for people with osteoarthritis , but little is known about whether exercise programs are effective , that is , whether the benefits of exercise can be seen in “ real life ” programs for “ normal ” people under nonlaboratory conditions . Objective To identify characteristics of and outcomes for participants who adhere to a community-based aquatic exercise program .  Method Two hundred and forty-nine adults with osteoarthritis were recruited from Washington State for r and omization to a 20-week Arthritis Foundation aquatic exercise program ( n = 125 ) or a wait-list control group ( n = 124 ) . Adherers were defined as those attending at least two classes per week for 16 of 20 weeks . Measures included : Quality of Well Being Scale , Health Assessment Question naire , Center for Epidemiological Studies -Depression Scale , and a single arthritis quality of life rating-item . Results Baseline to postintervention change scores revealed that treatment-group adherers ( N = 35 ) reported improved quality of well-being , physical function , and change in arthritis quality of life compared to controls ( N = 124 ) . When comparing treatment-group adherers ( N = 35 ) to treatment-group nonadherers ( N = 67 ) , quality of well-being and depressed mood improved for adherers , but not for nonadherers . Conclusion When analyzed for level of participation , exercise benefits adults with osteoarthritis . Consistent participation in exercise programs results in better outcomes . Improved methods are needed to enhance adherence , with increased attention to the role of intrinsic factors such as self-efficacy and belief systems
For patients with knee OA there is limited evidence that a lower level of physical function is associated with a lower level of physical activity .
There is also limited evidence that depression is not associated with the level of physical activity .
For patients with hip OA there is limited evidence that higher age , higher body mass index ( BMI ) and a low level of physical function is associated with a low level of physical activity .
CONCLUSION A high age ( hip OA ) , a high BMI ( hip OA ) and a low level of physical function ( both hip and knee OA ) are related to a low level of physical activity .
OBJECTIVE To give an overview of factors related to the level of physical activity  in patients with hip or knee osteoarthritis ( OA ) .