Due to lack of high quality studies and often only one manuscript reporting on a particular determinant , we concluded " insufficient evidence " for most associations between determinants and physical activity or exercise .
Background The health benefits of regular physical activity and exercise have been widely acknowledged .
Unfortunately , a decline in physical activity is observed in older adults .
Knowledge of the determinants of physical activity ( unstructured activity incorporated in daily life ) and exercise ( structured , planned and repetitive activities ) is needed to effectively promote an active lifestyle .
Our aim was to systematic ally review determinants of physical activity and exercise participation among healthy older adults , considering the method ological quality of the included studies .
Predicting the Adoption and Maintenance of Exercise Participation Using Self-Efficacy and Previous Exercise Participation Rates
Objectives . To investigate the relationships among self-efficacy , changes in self-efficacy , past exercise participation , future exercise adherence , and exercise program format . Methods . Two-year r and omized trial involving subjects ( n = 63 ) participating in an aerobic exercise program .  Subjects were r and omly assigned to one of three exercise conditions : higher-intensity home-based exercise , higher-intensity class-based exercise , or lower-intensity home-based exercise . Results . Results indicated that baseline self-efficacy and exercise format had significant ( p < .02 ) , independent effects on adherence during the adoption and early maintenance phases of exercise behavior . In contrast , in predicting long-term exercise program maintenance , a significant ( p < .05 ) self-efficacy X exercise format interaction indicated that self-efficacy predicted adherence only in the supervised home-based exercise conditions . Results also suggest that baseline self-efficacy , independent of the effect of past adherence , significantly ( p < .03 ) predicted exercise adherence during the adoption phase , but not early maintenance phase , of exercise behavior . Finally , adherence change during the adoption phase of exercise behavior significantly ( p < .04 ) predicted Year-one levels of self-efficacy even after adjusting far the effect of baseline self-efficacy . Conclusions . These results suggest that exercise program format as well as an individual 's initial cognitive and behavioral experiences in an exercise program play significant roles in determining exercise adherence
Due to lack of high quality studies and often only one manuscript reporting on a particular determinant , we concluded " insufficient evidence " for most associations between determinants and physical activity or exercise .
Background The health benefits of regular physical activity and exercise have been widely acknowledged .
Unfortunately , a decline in physical activity is observed in older adults .
Knowledge of the determinants of physical activity ( unstructured activity incorporated in daily life ) and exercise ( structured , planned and repetitive activities ) is needed to effectively promote an active lifestyle .
Our aim was to systematic ally review determinants of physical activity and exercise participation among healthy older adults , considering the method ological quality of the included studies .