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 .
Randomized trial of 2 interventions to increase older women's exercise.
OBJECTIVE To test 2 interventions to increase older women 's physical activity . METHODS A r and omized 2-way factorial experimental design compared the effects of 2 limited-contact interventions , motivational sessions and periodic prompts , among 190 women . Experimental participants received a 3-encounter motivational intervention . Those r and omized to prompts received weekly telephone or mail-delivered cues . RESULTS The prompting intervention consistently increased exercise and physical activity scores . The motivational intervention did not affect outcome scores . CONCLUSIONS Prompting is a low-cost strategy for increasing exercise and physical activity among older women . Future research should examine alternative modes for prompt delivery
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 .