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 .
Effectiveness of a worksite exercise program with respect to perceived work ability and sick leaves among women with physical work.
OBJECTIVES This multicentered r and omized controlled trial evaluated the effect of worksite exercise intervention on perceived work ability and sick leaves . METHODS Women ( N = 260 , mean age 40 years ) engaged in physically dem and ing laundry work were individually r and omized into an intervention ( N = 133 ) or control ( N = 127 ) group . Perceived work ability was assessed with question naires at 3 , 8 , 12 , and 15 months . Sick leave information was obtained from the personnel administration . Follow-up attendance was 100 % at 3 months but declined gradually to 90 % by 15 months . Both the intervention and control subjects received a 30-minute feedback on their physical capacity from a physiotherapist and individual exercise prescription and counseling . The intervention subjects also participated in worksite exercise training guided by a physiotherapist . Sixty-minute sessions ( N = 26 ) were held once a week for 8 months . About 50 % of the intervention group participated in at least two-thirds of the sessions . RESULTS According to a dichotomized work ability index , at 12 months , workers with " good " or " excellent " work ability increased more in the intervention group than in the control group ( 11.0 % , 95 % CI 0.2 - 21.9 ) , as did the health-related prognosis of work ability at 8 months ( 8.1 % , 95 % CI 0.5 - 16.3 ) . There were no statistically significant differences between the two groups as regards job satisfaction , work ability index ( including series of questions on 7 items ) , or sick leaves . CONCLUSIONS Physical activity once a week at worksites improves the perceived work ability of women with physically dem and ing work only slightly . Perceived work ability and sick leaves can not be affected very positively using single-component exercise intervention . Work ability promotion may need a more multiprofessional approach
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 .