Authors, Years | Country | Sample | Objective | Intervention | Durata | Assessment Tools | Results |
| Forsyth, North Carolina (USA) | EG (immediate intervention) = 4 schools; ES_2 (delayed intervention) = 3 schools; CG = 1 school; Age = 8 - 11 years | Evaluated a policy implementation intervention for to increase in-school PA in elementary schools in Forsyth County, North Carolina, in a randomized study with a delayed intervention control group | Introduce 10-minute PA breaks in classrooms on schedules determined by teachers | 2 semesters | SOFIT (adaptedversion; | Students in classrooms engaged in Instant Recess exhibited statistically significant increases in light (51%) and moderate-intensity (16%) PA and increases in time spent in on-task behavior (11%). Control schools experienced similar benefits after they began implementing Instant Recess. |
| Western New York, USA | N = 18, M = 11, F = 7; Age = 9.2 ± 4 years | Determine the impact of classroom teacher led activity breaks on the step counts and moderate-to-vigorous physical activity (MVPA) of 4th grade children at school | 5 - 15 minutes of physical activity, 1 - 3 times a day | 2 weeks | Accelerometers, The New Lifestyles NL-1000 (New Lifestyles, Lee Summit, MO) | Children significantly increased both their steps and MVPA. |
| USA | N = 54, M = 27, F = 27; Age = 8 - 12 years; | Describe PA levels and intensity during indoor recess using PA dance videos | 15 - 20 minutes of PA using DVD dance videos | 5 days | Accelerometers, ActiGraph | Participants averaged 17.66 minutes in indoor recess (22.22%) was spent in moderate-to-vigorous physical activity (MVPA), and 45.70% in low-intensity physical activity (LPA) totaling 67.92% of total recess time. Boys accumulated a higher percentage of MVPA and total PA compared to girls. |
| California, USA | N (students) = 1322; Age = 6 - 11 years; N (teachers) = 397; | To investigate the relation of classroom physical activity breaks to students’ physical activity and classroom behavior | 10 minutes of classroom activity breaks a day | 1 years | Accelerometers Actigraph GT3X+, teacher’s questionnaire, an adapted version of del 60-item Classroom Behavior and Assets Scale | Minutes/day of activity breaks was positively associated with students’ MVPA. Implementation was negatively associated with students having a lack of effort in class, and student MVPA was negatively associated with students being off task or inattentive in the classroom. |