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 . "
Bone mineral response to a 7-month randomized controlled, school-based jumping intervention in 121 prepubertal boys: associations with ethnicity and body mass index.
We examined the effects of a 7-month jumping intervention ( 10 minutes , 3 times per week ) on bone mineral gain in prepubertal Asian and white boys ( 10.3+/-0.6 years , 36.0+/-9.2 kg ) at 14 schools r and omized to control ( n = 60 ) and intervention ( n = 61 ) groups . Intervention and control groups had similar mean baseline and change in height , weight , lean mass and fat mass , baseline areal bone mineral density ( aBMD ; g/cm2 ) , bone mineral content ( BMC ; g ; dual-energy X-ray absorptiometry [ DXA ] , QDR 4500W ) , and similar average physical activity and calcium intakes . Over 7 months , the intervention group gained more total body ( TB ) BMC ( 1.6%,p < 0.01 ) and proximal femur ( PF ) aBMD ( 1 % , p < 0.05 ) than the control group after adjusting for age , baseline weight , change in height , and loaded physical activity . We also investigated the 41 Asian and 50 white boys ( 10.2+/-0.6 years and 31.9+/-4.4 kg ) who were below the 75th percentile ( 19.4 kg/m2 ) of the cohort mean for baseline body mass index ( BMI ) . Boys in the intervention group gained significantly more TB and lumbar spine ( LS ) BMC , PF aBMD , and trochanteric ( TR ) aBMD ( + approximately2 % ) than boys in the control group ( adjusted for baseline weight , final Tanner stage , change in height , and loaded physical activity ) . Bone changes were similar between Asians and whites . Finally , we compared the boys in the  control group ( n = 16 ) and the boys in the intervention group ( n = 14 ) whose baseline BMI fell in the highest quartile ( 10.5+/-0.6 years and 49.1+/-8.2 kg ) . Seven-month bone changes ( adjusted as aforementioned ) were similar in the control and intervention groups . In summary , jumping exercise augmented bone mineral accrual at several regions equally in prepubertal Asian and white boys of average or low BMI , and intervention effects on bone mineral were undetectable in high BMI prepubertal boys
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 . "