Interventions integrating physical activity into organizational routine during everyday life have demonstrated modest but consistent benefits , particularly for physical activity , and these are promising avenues of investigation .
The proportionately longer-term outcomes available in these studies compared with individual-level studies suggest that physical activity promotion strategies at the organizational level may be more sustainable
CONTEXT Recommended daily physical activity accumulated in short intervals ( e.g. , < 10 minutes ) may be more feasible and appealing to the relatively sedentary populace than longer bouts .
The purpose of this paper is to present a systematic review of the evidence for the effectiveness of short activity bouts incorporated into organizational routine as part of the regular " conduct of business . "
A school-based exercise intervention augments bone mineral accrual in early pubertal girls.
OBJECTIVE To evaluate the effects of an elementary school-based physical education exercise intervention program on bone mineral accrual in prepubertal and early pubertal girls . STUDY DESIGN A total of 14 schools were r and omly assigned to control ( C ) and intervention ( I ) groups . Girls in the I group completed a 10-minute , 3 times per week circuit of varied jumping activities over 7 months . We measured total body , lumbar spine , proximal femur , femoral neck , and trochanteric bone mineral content and areal bone mineral density and estimated femoral neck volumetric bone mineral density at baseline and final measurement in 87 girls in the I group and 90 girls in the C group . Girls were between 8.7 and 11.7 years at baseline . Tanner stage 1 girls were considered prepubertal ; Tanner stages 2 and 3 girls were considered early pubertal . We used analysis of covariance ( adjusting for baseline bone values , change in size , age , and maturity ) to compare 7-month change in bone mineral content , areal bone mineral density , and volumetric bone mineral density between C and I groups within prepubertal and early pubertal girls . RESULTS There was no difference in 7-month change in bone parameters between prepubertal I and C groups . Early pubertal girls in the I group gained 1.5 % to 3.1 % more bone at the femoral neck and lumbar spine than early pubertal girls in the C group ( P < .05 ) ; gain at other sites did not differ . CONCLUSIONS In girls , early puberty may be a particularly opportune time during growth for simple exercise interventions to have a positive effect on bone health
Interventions integrating physical activity into organizational routine during everyday life have demonstrated modest but consistent benefits , particularly for physical activity , and these are promising avenues of investigation .
The proportionately longer-term outcomes available in these studies compared with individual-level studies suggest that physical activity promotion strategies at the organizational level may be more sustainable
CONTEXT Recommended daily physical activity accumulated in short intervals ( e.g. , < 10 minutes ) may be more feasible and appealing to the relatively sedentary populace than longer bouts .
The purpose of this paper is to present a systematic review of the evidence for the effectiveness of short activity bouts incorporated into organizational routine as part of the regular " conduct of business . "