Among children , these interventions demonstrated reduced screen time , increased physical activity , and improved diet- and weight-related outcomes .
CONTEXT Sedentary time spent with screen media is associated with obesity among children and adults .
Obesity has potentially serious health consequences , such as heart disease and diabetes .
This Community Guide systematic review examined the effectiveness and economic efficiency of behavioral interventions aim ed at reducing recreational ( i.e. , neither school- nor work-related ) sedentary screen time , as measured by screen time , physical activity , diet , and weight-related outcomes .
Impact of a school-based interdisciplinary intervention on diet and physical activity among urban primary school children: eat well and keep moving.
OBJECTIVE To evaluate the impact of a school-based interdisciplinary health behavior intervention on  diet  and  physical activity  among children in grade s 4 and 5 . DESIGN A quasiexperimental field trial with 6 intervention and 8 matched control schools . Outcomes were assessed longitudinally using preintervention ( fall 1995 ) and follow-up ( spring 1997 ) student survey food frequency and activity measures and follow-up 24-hour recall measures of diet and activity . Change was also assessed using yearly repeated cross-sectional surveys of all grade 5 students from 1995 through 1997 . PARTICIPANTS Longitudinal data were collected from 479 students initially in grade 4 in Baltimore , Md , public schools ; 91 % were African American . Repeated 24-hour recall measures in 1997 were collected for a r and om sub sample of 336 students . Cross-sectional survey data were collected from all grade 5 students in 1995,1996 , and 1997 ( n = 2103 ) . INTERVENTION The Eat Well and Keep Moving Program was taught by classroom teachers over 2 years in math , science , language arts , and social studies classes . Material s provided links to school food services and families and provided training and wellness programs for teachers and other staff members . Intervention material s focused on decreasing consumption of foods high in total and saturated fat and increasing fruit and vegetable intake , as well as reducing television viewing and increasing physical activity . MAIN OUTCOME MEASURES Dietary intake and physical activity measured via repeated 24-hour recall were primary end points , with additional food frequency and activity measures . RESULTS The 24-hour recall measures indicated that , after controlling for baseline covariates , the percentages of total energy from fat and saturated fat were reduced among students in intervention compared with control schools ( -1.4 % ; 95 % confidence interval [ CI ] , -2.8 to -0.04 ; P = .04 and -0.60 % ; 95 % CI , -1.2 to -0.01 ; P = .05 ) . There was an increase in fruit and vegetable intake ( 0.36 servings/4184 kJ ; 95 % CI , 0.10 - 0.62 ; P=.01 ) , in vitamin C intake ( 8.8 mg/4184 kJ ; 95 % CI , 2.0 - 16 ; P=.01 ) , and in fiber consumption ( 0.7 g/4184 kJ ; 95 % CI , 0.0 - 1.4 ; P=.05 ) . Television viewing was marginally reduced ( -0.55 h/d ; 95 % CI , -1.04 to 0.04 ; P=.06 ) . Analysis of longitudinal and repeated cross-sectional food frequency data indicated similar significant decreases in the percentages of total energy from fat and saturated fat . CONCLUSION Evaluation of the Eat Well and Keep Moving Program indicates effectiveness in improving dietary intake of students and reducing television viewing
Among children , these interventions demonstrated reduced screen time , increased physical activity , and improved diet- and weight-related outcomes .
CONTEXT Sedentary time spent with screen media is associated with obesity among children and adults .
Obesity has potentially serious health consequences , such as heart disease and diabetes .
This Community Guide systematic review examined the effectiveness and economic efficiency of behavioral interventions aim ed at reducing recreational ( i.e. , neither school- nor work-related ) sedentary screen time , as measured by screen time , physical activity , diet , and weight-related outcomes .