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Background: Recess strategies that increase children's physical activity and contribute to the daily 60 minutes of moderate to vigorous physical activity (MVPA) are recommended. Methods: A cluster randomized trial was conducted to examine the effect of supervised versus organized recess on children's participation, physical activity, play, and social behavior. In supervised recess, children were free to play, and physical education (PE) teachers ensured safety. In organized recess, PE teachers provided challenging tasks. Data were collected using systematic observation. Children (N = 281; 8–10 y) from 14 schools received a 6-day parkour unit in PE and three opportunities to participate in a 20-minute parkour recess. Schools were randomized over a supervised and organized parkour recess condition. Results: The majority of children participated in parkour recess (range = 56%–85%), with more boys participating in all 3 organized versus supervised recess sessions (57% vs 35%, P =.01). Boys spent more time in MVPA during organized recess (79% vs 71%, P =.02). Boys and girls spent more time in activity games during organized recess (59% vs 46%, P =.01; 59% vs 47%, P =.001). Conclusion: Organized recess attracted more children and made the largest contribution to daily MVPA. [ABSTRACT FROM AUTHOR]

Purpose Accelometry is a very important tool to measure physical activity (PA) in preschoolers, as it can measure 24-hour PA and detect activity which cannot be captured by other methods. However, accelerometer validation for preschoolers is lacking (Altenburg et al. 2022). Specifically, for the ActiGraph wGT3X-BT and Move 4 (ActiGraph LLC; Move4 activity sensor, movisens GmbH) only a few, respectively no preschooler validation studies, were found. Thus, the purpose was to validate these two accelerometers in Swiss preschoolers with the System for Observing Children’s Activity and Relationships during Play (SOCARP; Ridgers et al., 2010). Methods and Design Preschoolers (2-5 years old) from two Swiss Sunday activity programs (MiniMove & Ä Halle wo’s fägt) were randomly selected as part of a larger program evaluation. PA was assessed SOCARP for a duration of 12 minutes per child. During the observation, the children wore both an ActiGraph and a Move4 device taped to their right hip to record steps. Step-counts from the ActiGraph and Move4 were correlated with each other and with moderate-to-vigorous (MV)PA from SOCARP (as SOCARP does not count steps). Results Valid PA data was available for 45/58 (77.6%) children (49% girls) for SOCARP and for 47/58 (81%) children (51% girls) for accelometry. Step count correlations between the accelerometers (Actigraph and Move4) and %MVPA (SOCARP) was medium and positive (r(43) = .34, p = .03 and r(43) = .37, p = .02; respectively). There was a strong step count correlation between the two devices (r(45) = .90, p < .001), although ActiGraph measured significantly more steps than Move4 (m = 557.74, SD = 255.77 versus m = 397.81, SD = 164.10); t(46)=8.47, p < .001). Discussion PA measurement in preschool children can be challenging. However, the correlation between step counts and observed %MVPA indicates criterion validity for both devices. The step-counts of Actigraph and Move4 validate each other, but there is a difference in the absolute number of measured steps. Due to different outcome parameters, calculation algorithms, and inaccessibility to raw acceleration the comparison of the two devices on movement intensity was not possible. Although promising preliminary indications of validity of device-based measurement of PA in Swiss preschool children, further investigations into the methodological approaches of comparing measurements of movement intensity are warranted. References Altenburg, T. M., de Vries, L., op den Buijsch, R., Eyre, E., Dobell, A., Duncan, M., & Chinapaw, M. J. M. (2022). Cross-validation of cut-points in preschool children using different accelerometer placements and data axes. Journal of Sports Sciences, 40(4), 379-385. https://doi.org/10.1080/02640414.2021.1994726 Ridgers, N. D., Stratton, G., & McKenzie, T. L. (2010). Reliability and validity of the system for observing children’s activity and relationships during play (SOCARP). Journal of Physical Activity and Health, 7(1), 17–25. https://doi.org/10.1123/jpah.7.1.17

This study examined physical activity (PA) variables related to recess PA patterns of kindergarten, first and second grade children, and the social preferences and individuals influencing their PA. Data collected (N = 147) used the System of Observing Children's Activity and Relationships during Play (SOCARP) instrument. Children were interviewed. Kindergarten boys spent a significantly higher percentage of time in MVPA (t = 3.137, d = .96, p < .008). Kindergarten girls spent significantly more time standing (t = 3.548, d = 1.07, p < .008). Second grade boys spent a significantly (t = 4.44, d = 1.98, p < .0125) more time in sport activities. Second grade girls spent significantly more time in sedentary (t = 4.399, d = 1.11, p < .0125) and locomotor (t = 3.533, d = .899, p < .0125) activities. Participants articulated the prominence of friends, engaging in games/activities, and playing on the playground equipment. [ABSTRACT FROM AUTHOR]

Purpose: To evaluate children's physical activity (PA) levels, social play behavior, activity time, and social interactions during unstructured time.Approach: Systematic observation tool to record child's PA level, social group size, activity type, and social interaction during play.Setting: Northeast US residential summer camp, pseudonym Forest Hills Camp.Participants: Fifty-nine third-grade campers (27 males and 32 females).Method: Observational data were obtained using the System for Observing Children's Activity and Relationships during Play (SOCARP). Data were analyzed using independent samples t tests (with Bonferroni adjustment) to assess statistical differences between boys and girls SOCARP categories.Results: Both boys and girls spend over 50% of their time in moderate-to-vigorous physical activity (MVPA). Statistically significant differences between genders were observed: activity level-(a) girls sat more than boys, and (2) boys engaged in more vigorous activity; activity type-(1) boys engaged in more sport activity, girls engaged in more locomotion activity, and girls were more sedentary; and social interactions-(1) boys had more physical conflict, and (2) boys had more verbal conflict.Conclusion: Contrary to previous research suggesting that summer campers have increased sedentary behavior during unstructured time, our results indicate that third-grade campers engaged in MVPA over 50% of their unstructured time. This suggests that unstructured time in outdoor camp settings may provide valuable opportunities for adolescent children to choose PA. [ABSTRACT FROM AUTHOR]

The benefits of recess can be reaped by all students regardless of socioeconomic status, race, or gender and at relatively little cost. The purpose of this study was to examine physical activity (PA) variables related to the recess PA patterns of third and fourth grade children and the social preferences and individuals influencing their PA (friends and parents). Data were collected on students (N = 115) utilizing the System of Observing Children's Activity and Relationships during Play (SOCARP) instrument. In addition, each child was interviewed during the recess period in which SOCARP was completed. Results found that boys spent significantly more time being very active (t (95.64) = 3.252, d = .62, p < .008) than girls and preferred sport activities (t = (73.62) 5.64, d = 1.14, p < .0125) in large groups (t (69.34) = 4.036, d = .83, p < .0125). Meanwhile, girls preferred locomotor activities (t (113) = 3.19, d = .60, p < .0125), sedentary activities (t (113) = 2.829, d = .53, p < .0125) and smaller groups (t (112.63) = 4.259, d = .79, p < .0125). All 115 participants indicated that they wanted to spend time with their friends during recess. [ABSTRACT FROM AUTHOR]