The heterogeneity in reported effects was reduced in higher quality studies , when physical activity was self-directed with some professional guidance and when there was on-going professional support .
Our review suggests that physical activity interventions have a moderate effect on self reported physical activity and cardio-respiratory fitness , but not on achieving a predetermined level of physical activity .
Due to the clinical and statistical heterogeneity of the studies , only limited conclusions can be drawn about the effectiveness of individual components of the interventions .
BACKGROUND Little is known about the effectiveness of strategies to enable people to achieve an increase in their physical activity .
OBJECTIVES To assess the effects of interventions for promoting physical activity in adults aged 16 years and older , not living in an institution .
Promoting physical activity among women with mobility impairments: a randomized controlled trial to assess a home- and community-based intervention.
OBJECTIVE To assess the effectiveness of an intervention to promote physical activity and fitness in physically disabled women . DESIGN R and omized controlled trial . SETTING Home or community . PARTICIPANTS Seventy-five adult women with mobility limitations .  INTERVENTION Incorporated behavioral techniques , social support , and education to promote exercise . MAIN OUTCOME MEASURES Fitness measures included weight , body mass index , resting blood pressure and heart rate , time to complete a mobility course , and heart rate during and blood pressure after navigating the course . Also collected self-reported experience of secondary conditions and weekly self-reports of physical activity . RESULTS We found no significant fitness differences between groups , except for peak heart rate . However , paired t tests of the physical activity data revealed the experimental group significantly increased its total weekly physical activity minutes ( P=.04 ) , and the increase in weekly cardiovascular activity approached significance ( P=.06 ) . CONCLUSIONS The experimental group did not experience better fitness or fewer secondary conditions than the controls . However , the experimental group 's physical activity data indicate that this group significantly increased its activity over 6 months . Thus , although this study did not detect health changes , it showed that mobility-impaired women can adopt and maintain a physical activity program
The heterogeneity in reported effects was reduced in higher quality studies , when physical activity was self-directed with some professional guidance and when there was on-going professional support .
Our review suggests that physical activity interventions have a moderate effect on self reported physical activity and cardio-respiratory fitness , but not on achieving a predetermined level of physical activity .
Due to the clinical and statistical heterogeneity of the studies , only limited conclusions can be drawn about the effectiveness of individual components of the interventions .
BACKGROUND Little is known about the effectiveness of strategies to enable people to achieve an increase in their physical activity .
OBJECTIVES To assess the effects of interventions for promoting physical activity in adults aged 16 years and older , not living in an institution .