1. A multiple technology-based physical activity intervention for Latina adolescents in the USA: randomized controlled trial study protocol for Chicas Fuertes
- Author
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Larsen, Britta, Greenstadt, Emily, Olesen, Brittany, Osuna, Lilliana, Godino, Job, Marcus, Bess, Dunsiger, Shira, Meyer, Dawn, and Zive, Michelle
- Subjects
Biomedical and Clinical Sciences ,Public Health ,Health Sciences ,Prevention ,Obesity ,Pediatric ,Comparative Effectiveness Research ,Clinical Research ,Behavioral and Social Science ,Clinical Trials and Supportive Activities ,Cancer ,Prevention of disease and conditions ,and promotion of well-being ,3.1 Primary prevention interventions to modify behaviours or promote wellbeing ,Cardiovascular ,Stroke ,Metabolic and endocrine ,Oral and gastrointestinal ,Good Health and Well Being ,Adolescent ,Diabetes Mellitus ,Type 2 ,Exercise ,Hispanic or Latino ,Humans ,Randomized Controlled Trials as Topic ,Sedentary Behavior ,Technology ,United States ,Teens ,mHealth ,Health disparities ,Social media ,Text messaging ,Fitbit ,Latinas ,Randomized controlled trials ,Cardiorespiratory Medicine and Haematology ,Clinical Sciences ,Cardiovascular System & Hematology ,General & Internal Medicine ,Clinical sciences ,Epidemiology ,Health services and systems - Abstract
BackgroundLatina adolescents in the USA report some of the lowest rates of physical activity of any demographic subgroup; this is paralleled by a markedly higher lifetime risk of obesity, type 2 diabetes, and other conditions related to inactivity. Despite this, to date, no fully powered clinical trials have tested physical activity interventions specifically for this population. High use of mobile technologies (including text messages, smartphone apps, and social media) suggests this could be an appropriate intervention channel, while also having potential for broad reach. This paper describes the protocol for Chicas Fuertes, a fully powered randomized trial of a mobile technology-based physical activity intervention for Latina adolescents.MethodsWe plan to recruit 200 Latina teens (age 13-18) in San Diego, CA, currently engaging in ≤ 150 min/week of moderate-to-vigorous physical activity (MVPA) to be assigned 1:1 to the intervention or control groups. Those randomly assigned to the intervention group receive a one-on-one goal setting session followed by 6 months of mobile technology-based intervention, including a personalized website, Fitbit activity tracker and app, individually tailored text messages based on Fitbit data, and daily intervention content on Instagram. Those randomized to the control group receive only a Fitbit activity tracker. The main outcome is change in weekly minutes of MVPA from baseline to 6 months, measured both objectively (ActiGraph accelerometers and Fitbit Inspire HR) and subjectively (7-Day Physical Activity Recall Interview). Additional outcomes are maintenance of activity change at 12 months and changes in psychosocial constructs, including social support and self-efficacy, engagement with mobile technology channels, and costs of intervention delivery. We are also examining the potential mediators and moderators of the intervention. The efficacy of the intervention is analyzed using a mixed effects regression model, adjusting for any potential confounders not balanced by randomization. All analyses of accelerometer measured MVPA are also adjusted for wear time.DiscussionThe Chicas Fuertes trial uses widely available mobile technologies to target critical health behavior, physical activity, in Latina teens, a population with a high lifetime risk of lifestyle-related diseases. The results will speak to the efficacy and acceptability of the intervention, which has the potential for broad dissemination.Trial registrationClinicalTrials.gov NCT04190225 . Registered on November 20, 2019.
- Published
- 2022