Weight-related Self-monitoring App Use Among Emerging Adults is Cross-sectionally Associated With Amount and Type of Physical Activity and Screen Time.

Weight-related self-monitoring (WRSM) apps are often used by emerging adults to assist in behavior change. However, little is known about the relationship between WRSM among the general population of emerging adults and various physical activity and screen time behaviors. This paper examines associations between WRSM app use and various forms of physical activity and screen time among a population-based sample of emerging adults. Data come from EAT 2018 (N = 1,568, mean age = 22.0 ± 2.0 years), a population-based sample of emerging adults from Minneapolis/St. Paul, Minnesota. Participants reported on the types of WRSM apps used (physical activity and/or dietary focused), in addition to how much time they spent doing physical activity, whether they practiced yoga, compulsive exercise, recreational screen time, social media use, and whether they viewed dieting/weight loss materials. Linear and logistic regressions were used to assess adjusted means and prevalences of outcomes. We found that physical activity-focused WRSM app users engaged in more hours of total (8.7 vs 7.2, P < .001), and moderate-to-vigorous (5.1 vs 4.3, P = .002) physical activity compared to non-users. Similar results were found for dietary WRSM app users compared to non-users. However, WRSM app users had higher levels of compulsive exercise and were more likely to view dieting/weight loss materials (Ps < .001). Findings suggest that although physical activity is higher among WRSM users, the types of physical activity and screen time behaviors WRSM users are engaging in may be harmful.

A novel method to map community- and neighborhood-level access to rural physical activity built environments in the United States.

Physical activity (PA) built environments may support PA among rural youth and families. In the United States (U.S.), differences between rural and urban PA built environments are assessed using coarse scale, county-level methods. However, this method insufficiently examines environmental differences within rural counties. The present study uses rural-specific geospatial mapping techniques and a fine scale, within-rural grouping strategy to identify differing levels of access to the PA built environment among a rural sample. First, PA infrastructure variables (parks, sidewalks) within a rural region of the Midwest U.S. were mapped. Then, households (N = 112) of participants in the NU-HOME study, a childhood obesity prevention trial, were categorized to community-level and neighborhood-level PA built environment groups using two access indicators; Rural-Urban Commuting Area (RUCA) codes and Walk Scores®, respectively. Finally, households were categorized to new groups that combined community-level RUCA codes and neighborhood-level Walk Scores® to indicate the diverse ways in which rural families might access PA built environments, including by vehicle travel and pedestrian commuting. Household access to PA infrastructure (per geospatial proximity and density analyses), parent perceptions of the PA environment, and child PA were examined across the new combined access groups. All measures of household access to PA infrastructure significantly differed by group (p <.0001). Several parent PA perceptions differed by group; child PA did not. The present study provides future researchers with innovative strategies to map and examine how access to the PA built environment differs within a rural area. Due to the public availability of the access indicators used (RUCA codes, Walk Scores®), study methods can be replicated.

What Brings Young Adults to the Yoga Mat? Cross-Sectional Associations Between Motivational Profiles and Physical and Psychological Health Among Participants in the Project EAT-IV Survey.

Objectives: This study examines motivations for yoga and identifies unique motivational profiles among a sample of young adult yoga practitioners. This study further determines how young adult yoga practitioners' motivational profiles associate with physical health behaviors and psychological factors. Subjects/Setting: Survey data were drawn from the fourth wave of a large, population-based study (Project EAT-IV; Eating and Activity in Teens and Young Adults). Design: Latent class analysis (LCA) was used to identify motivational profiles among Project EAT-IV participants practicing yoga (n = 297; mean age: 30.8-1.7 years; 79.7 % female). Cross-sectional associations between latent motivational profiles, physical health behaviors, and psychological factors were determined with unadjusted and adjusted (gender, race/ethnicity, and body mass index) general linear models. Results: Across motivational profiles, most young adult yoga practitioners were motivated by enhanced fitness and stress reduction/relaxation. Additional motivations for yoga clustered by appearance (desire to change body appearance or weight) or mindfulness (desire to increase present moment awareness) underpinnings. The LCA characterized motivational profiles as "Low Appearance, Low Mindfulness" (Class 1; n = 77), "Low Appearance, High Mindfulness" (Class 2; n = 48), "High Appearance, Low Mindfulness" (Class 3; n = 79), and "High Appearance, High Mindfulness" (Class 4; n = 93). Having a profile with high mindfulness and low appearance motivations (Class 2) was associated with higher body satisfaction in comparison to the other classes (p < 0.001). Relative to Class 2, those with low mindfulness motivations (Class 1; Class 3) reported less total physical activity (p = 0.002) and those with high appearance motivations (Class 3; Class 4) reported higher compulsive exercise scores (p = 0.002). Conclusions: In this sample, high mindfulness and low appearance motivations for yoga appeared optimal for physical and psychological health. Cross-sectional findings suggest that young adult yoga practitioners' mind-body health may be supported by motivational underpinnings that emphasize yoga's internal (mindfulness) rather than external (appearance) benefits.

Leveraging Interdisciplinary Teams to Develop and Implement Secure Websites for Behavioral Research: Applied Tutorial.

Behavioral researchers are increasingly using interactive digital platforms, either as standalone or supplementary intervention tools, to facilitate positive changes in research participants' health habits. Research-oriented interactive websites optimally offer a variety of participatory mediums, such as blogs, user-driven content, or health activities. Owing to the multidirectional features of interactive websites, and a corresponding need to protect research participants' identity and data, it is paramount that researchers design ethical platforms that ensure privacy and minimize loss of anonymity and confidentiality. Authentication (ie, digital verification of one's identity) of interactive sites is one viable solution to these concerns. Although previous publications have addressed ethical requirements related to authenticated platforms, few applied guidelines in the literature facilitate adherence to ethical principles and legally compliant study protocols during all phases of research website creation (feasibility, design, implementation, and maintenance). Notably, to remain compliant with ethical standards and study protocols, behavioral researchers must collaborate with interdisciplinary teams to ensure that the authenticated site remains secure and usable in all stages of the project. In this tutorial, we present a case study conducted at a large research university. Through iterative and practical recommendations, we detail lessons learned from collaborations with the Institutional Review Board, legal experts, and information technology teams. Although the intricacies of our applied tutorial may require adaptations based on each institution's technological capacity, we are confident that the core takeaways are universal and thus useful to behavioral researchers creating ethically responsible and compliant interactive websites.