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Background: Regular physical activity (PA) contributes to positive health outcomes, but a minority of US adults meet minimum guidelines for moderate-to-vigorous PA (MVPA) and muscle-strengthening, and Latinos are less likely than whites to meet these guidelines. Public parks can be leveraged for community PA but tend to be underutilized, while churches have reach within Latino communities and can influence parishioners' health., Methods: We are conducting a cluster randomized controlled trial to examine the impact of a multilevel, faith-based intervention linking Catholic parishes (n = 14) to their local parks on adult Latino parishioners' (n = 1204) MVPA and health-related outcomes. Our approach targets multiple levels (individual, group, church, and neighborhood-park) to promote health-enhancing PA through park-based exercise classes led by kinesiology students, peer leader-led walking groups, park-based church events, church-based PA support activities, and environmental advocacy. Data are collected at churches by trained bilingual/bicultural research assistants using accelerometry, surveys, and biometric procedures. We will implement a set of hierarchical repeated-measure linear models to examine effects on the primary outcome (MVPA) and secondary outcomes (self-reported PA, heart rate/fitness, waist circumference, waist-to-hip ratio, body fat, mental health, and perceived social support for PA). We will also conduct a process evaluation., Conclusion: To our knowledge, this will be the first study examining efficacy of an integrated church and park-based intervention on Latino adults' PA and represents a scalable model of PA programming for low-income communities. The intervention makes use of innovative partnerships within and across sectors - faith-based, local parks/city government, and local universities - further facilitating sustainability., Clinicaltrials: govID: NCT03858868., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2022 Elsevier Inc. All rights reserved.)

Background: Latina women are less likely to report engaging in leisure-time physical activity (PA) than non-Latina white women. This study evaluated the 24-month impact of a faith-based PA intervention targeting Latinas., Methods: The study is a cluster randomized controlled trial of a PA intervention or cancer screening comparison condition, with churches as the randomization unit. A total of 436 Latinas (aged 18-65 years) from 16 churches who engaged in low levels of self-report and accelerometer-based PA were enrolled. The experimental condition was a 24-month PA intervention, with in-person classes, social support, and environmental changes, led by community health workers (i.e., promotoras). At baseline, 12-, and 24 months, we assessed changes in accelerometer-based and self-reported moderate to vigorous physical activity (MVPA; primary outcomes). Secondary outcomes were light intensity activity, sedentary time, body mass index (BMI), and waist circumference., Results: After adjusting for sociodemographic factors, a mixed effects analysis found significant increases in self-reported leisure time MVPA (p < 0.005) and marginal increases in accelerometer-assessed MVPA (p < 0.08) 24 months post-baseline in the intervention compared to the attention-control condition. Data showed significant associations between PA class attendance and engaging in MVPA as assessed by self-report and accelerometry. No significant changes were found for light activity, sedentary time, BMI, or waist circumference., Conclusions: Participants who attended the PA classes at least once a month engaged in significantly higher MVPA compared to those who did not. Maximizing engagement and maintenance strategies to enhance PA maintenance could contribute to important long-term health benefits., Trial Registration: NCT01776632 , Registered March 18, 2011., (© 2022. The Author(s).)

Female adolescents are less active than male peers in certain contexts including the neighborhood. Adolescents' physical activity can be explained by interactions between environmental and psychosocial factors, but few studies have tested such interactions in relation to context-specific behaviors. This study tested interactions between neighborhood environmental and psychosocial factors in relation to adolescents' context-specific physical activity. Data were collected in 2009-11 from 910 adolescents and a parent/guardian residing in the Baltimore/Seattle regions. Measures included adolescent-reported neighborhood leisure-time physical activity (LTPA) and non-neighborhood LTPA, accelerometer-based non-school moderate-to vigorous-physical activity (MVPA), psychosocial factors, and objective and parent-perceived neighborhood environmental factors. Gender-stratified mixed effects linear models tested associations of 6 environmental and 4 psychosocial factors and their interactions in relation to each physical activity outcome. The psychosocial factors had consistent associations with the physical activity outcomes but the environmental correlates were context-specific. Decisional balance (weighing of pros and cons of physical activity) moderated the association between recreation facility density and neighborhood LTPA among females, with a negative association only among those with high decisional balance (pros outweighed cons). Decisional balance also moderated associations of neighborhood walkability with non-school MVPA among females and non-neighborhood LTPA among males, with positive associations only among those with high decisional balance. Results support context-specific ecological models of physical activity. Targeting environmental factors that may promote opportunities for physical activity in specific contexts as well as adolescent decision-making may help promote their physical activity in those contexts, potentially leading to increased overall physical activity., (Copyright © 2017 Elsevier Inc. All rights reserved.)