Original ArticlesActive Play Network Influences on Physical Activity Among Children Living in Texas ColoniasProchnow, Tyler MEd; Umstattd Meyer, M. Renée PhD; Patterson, Megan S. PhD; Trost, Stewart G. PhD; Gómez, Luis; Sharkey, Joseph PhD Author Information Robbins College of Health and Human Sciences, Baylor University, Waco, Texas (Mr Prochnow and Dr Umstattd Meyer); Department of Health and Kinesiology (Dr Patterson) and Health Promotion and Community Health Sciences (Mr Gómez and Dr Sharkey), Texas A&M University, College Station; and Queensland University of Technology, Exercise and Nutrition Sciences, Brisbane, Queensland, Australia (Dr Trost). Correspondence: Tyler Prochnow, MEd, Robbins College of Health and Human Sciences, Baylor University, One Bear Pl #97313, Waco, TX 76798 ([email protected]). The authors have no conflicts of interest to report. Family & Community Health: July/September 2021 - Volume 44 - Issue 3 - p 154-161 doi: 10.1097/FCH.0000000000000296 Buy Metrics Abstract Physical activity (PA) is beneficial for child health; however, few children meet PA guidelines. Social relationships impact child PA behaviors; however, little is known about this effect in Mexican-heritage populations. This study aims to understand associations between self-reported play networks and PA among Mexican-heritage children. Mexican-heritage children from colonias along the Texas-Mexico border (n = 44; 54.5% girls; mean age = 9.89 years, SD = 0.97) reported information on up to 5 people they played with most often. Linear regression was used to analyze the relationship between composition of children's social network and minutes of moderate- to vigorous-intensity PA (MVPA) and sedentary minutes per day measured by accelerometers. Children who reported a higher percentage of friends as opposed to family members attained significantly more minutes of MVPA per day (β = .27, P = .04). Children who reported playing with individuals in their network more often (β = ‒.28, P = .03) were sedentary for fewer minutes per day. Increasing the connections between children in the neighborhood or community, as well as increasing a child's frequency of active play, may be promising approaches to increasing MVPA and decreasing sedentary behaviors among Mexican-heritage children. © 2021 Wolters Kluwer Health, Inc. All rights reserved.