• J B Bartholomew, N M Golaszewski, E Jowers, E Korinek, G Roberts, A Fall, and S Vaughn.
• The University of Texas at Austin, Austin, TX, United States. Electronic address: jbart@austin.utexas.edu.
• Prev Med. 2018 Jun 1; 111: 495449-54.

AbstractWhile increased opportunities for physical activity (PA) are a critical, public health need for children, school-based interventions often place teachers in the position to choose between PA and time spent on academic lessons. Active learning is designed to overcome this by combining PA with academic material. Moreover, teachers are likely to be more responsive to change in academic-related outcomes than in PA. This study utilizes a large, cluster randomized control trial in which student attention, or time on task (TOT) and accelerometer-based PA is assessed in conjunction with active learning. Participants were 2716 children (46% male, 46% white) from 28 elementary schools in Central Texas that were assigned to either: 1) active learning (math n = 10; spelling n = 9); or 2) traditional, sedentary academic lessons (n = 9). PA was measured with accelerometers. TOT was measured through a momentary time sampling protocol. A series of three-level (student, classroom, school) regression models estimated the effect of the intervention. The intervention lead to significantly increased TOT. Moreover, the dose of PA (steps) during the intervention was positively associated with the increase in TOT. In contrast, a greater dose of PA was associated with reduced TOT for students in control schools. Race, gender, and SES did not moderate these effects. Planned PA - as a part of an active, academic lesson - positively impacted TOT. In contrast, a traditional, sedentary lesson was associated with lower TOT. This differential impact offers intriguing possibilities to better understand the relationship between PA and academic performance.Copyright © 2018 Elsevier Inc. All rights reserved.

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