Promoción de la actividad física y el estado físico entre familias latinas desatendidas que viven en las regiones fronterizas entre Estados Unidos y México (AFL)

The 12-month intervention will progressively increase in intensity & complexity to teach parents/children more complex sports skills & behavioral techniques, & to prepare them to become future team leaders for nutrition education and sports sessions. In addition, the family Olympics events will take place after every 3-month to reinforce progression, social support, & progressive improvements: Phase 1: Beginner (months 0-3) will focus on introductory concepts & basic sports skills & will focus on establishing consistent behavioral patterns & social support. Phase 2: Intermediate (months 4-6) will begin to introduce slightly more complex nutrition & behavioral concepts, increase difficulty of sport skills, & reinforce behavioral patterns from phase 1. Phase 4: Advanced (months 10-12) will teach parents & children advanced sports skills & nutrition knowledge so that they may become team leaders to help implement future activity sessions and nutrition education sessions.

The 12-month intervention will progressively increase in intensity and complexity to teach parents/children more complex sports skills and behavioral techniques, to prepare them to become future team leaders for nutrition education and sports sessions. In addition, the family Olympics events will take place after every 3-month to reinforce progression, social support; progressive improvements: Phase 1: Beginner (months 0-3) will focus on introductory concepts and basic sports skills and will focus on establishing consistent behavioral patterns and social support. Phase 2: Intermediate (months 4-6) will begin to introduce slightly more complex nutrition behavioral concepts and increase difficulty of sport skills, and reinforce behavioral patterns from phase 1. Phase 4: Advanced (months 10-12) will teach parents and children advanced sports skills ; nutrition knowledge so that they may become team leaders to help implement future activity sessions and nutrition education sessions.

Centers that are randomly assigned to the control group will continue with regularly schedule programing and activities. Families recruited from control centers will be allowed to take part in all the programs offered at the recreation centers, with exception to the AFL program since it will not be offered at those centers. Control group families will also receive publicly available information regarding the benefits of PA and strategies to become physically active (e.g., CDC PA guidelines websites & handbook). 12-month sustainability phase will involve assessments at the organizational and individual levels. At the organizational level, we will examine the number of AFL sessions held at each recreation center and document the number of phone consultations, length of calls, and barriers addressed. At the individual level, we will examine the number of minutes of adult and child habitual PA.

Total PA (mean minutes/day) in children will be measured objectively with a wrist-worn ActiGraph GT9X Link (Pensacola, United States). According to recommended procedures[84], children will be asked to wear the accelerometer continuously on their non-preferred wrist for seven days. Parents will be provided with a sleep diary where they will record their child's wake/sleep times and periods of non-wear. Child and adult CVF performance will be measured via the 1-mile run/walk time in seconds at a local park (usually adjacent to the Community Centers). Study staff will utilize stop watches to collect total mile run time in seconds and record the time in each participant's record log. In addition, a measurement staff will run/walk along with each child participant and provide them with verbal encouragement to put forth their best effort.

Will be assessed at multiple levels: participant/families, research team (including Promotores), and Community Center staff. At the participant level, parent-child focus groups will be held and anonymous surveys to assess program satisfaction will be administered. At the staff level; staff and students will be evaluated every 3 months for fidelity by the intervention coordinator through checklists and weekly logs, as well as surveys assessing the feasibility of the program. At the community center level; they will complete brief online surveys involving policy implications, program feasibility, intervention adoption and costs, and reach of recruitment and outreach efforts. Additionally, phone interviews will be held by study personnel to assess appropriateness and sustainability of the AFL intervention.