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 .
Exercise counselling by family physicians in Canada.
BACKGROUND Exercise counselling is not frequently conducted by family physicians in several countries . Little is known about the exercise counselling practice s of family physicians in Canada . The objective of this study was to assess physician confidence , current versus desired practice , and barriers related to the counselling of exercise by family physicians in Canada . METHODS The study was a cross-sectional survey that included a r and om selection of family physicians in six provinces . A total of 330 family physicians completed the question naire , result ing in a response rate of 61.1 % . A family physician was defined as a physician who practice s family medicine at least 75 % of their practice time . RESULTS A total of 58.2 % believed only 0 - 25 % of their patients would respond to their counselling and 42.4 % felt " moderately knowledgeable " to exercise counsel . Only 11.8 % counselled 76 - 100 % of their patients about exercise , but 43.3 % thought they should be counselling 76 - 100 % of their patients . Barriers to exercise counselling that rated most important included lack of time ( 65.7 % ) and lack of exercise education in medical school ( 64.8 % ) . CONCLUSIONS Family physicians indicated their current level of exercise counselling is suboptimal and confidence levels in exercise counselling were not high . Future educational opportunities for physicians may assist in improving exercise counselling
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 .