A Tailored Web- and Text-Based Intervention to Increase Physical Activity for Latino Men: Protocol for a Randomized Controlled Feasibility Trial

Kim M Gans, Akilah Dulin, Vanessa Palomo, Tanya Benitez, Shira Dunsiger, Laura Dionne, Gregory Champion, Rachelle Edgar, Bess Marcus, Kim M Gans, Akilah Dulin, Vanessa Palomo, Tanya Benitez, Shira Dunsiger, Laura Dionne, Gregory Champion, Rachelle Edgar, Bess Marcus

Abstract

Background: Latino men in the United States report low physical activity (PA) levels and related health conditions (eg, diabetes and obesity). Engaging in regular PA can reduce the risk of chronic diseases and yield many health benefits; however, there is a paucity of interventions developed exclusively for Latino men.

Objective: To address the need for culturally relevant PA interventions, this study aims to develop and evaluate Hombres Saludables, a 6-month theory-based, tailored web- and text message-based PA intervention in Spanish for Latino men. This protocol paper describes the study design, intervention, and evaluation methods for Hombres Saludables.

Methods: Latino men aged 18-65 years were randomized to either the individually tailored PA internet intervention arm or the nutrition and wellness internet control arm. The PA intervention included 2 check-in phone calls; automated SMS text messages; a pedometer; a 6-month gym membership; access to a private Facebook group; and an interactive website with PA tracking, goal setting, and individually tailored PA content. The primary outcomes were feasibility, acceptability, and efficacy (minutes per week of total moderate-to-vigorous PA assessed via the ActiGraph GT3X+ accelerometer worn at the waist and 7-day physical activity recall at baseline and 6 months). Secondary outcomes examined potential moderators (eg, demographics, acculturation, and environmental variables) and mediators (eg, self-efficacy and cognitive and behavioral processes of change) of treatment effects at 6 months post randomization.

Results: This study was funded in September 2016. Initial institutional review board approval was received in February 2017, and focus groups and intervention development were conducted from April 2017 to January 2018. Recruitment for the clinical trial was carried out from February 2018 to July 2019. Baseline data collection was carried out from February 2018 to October 2019, with a total of 43 participants randomized. Follow-up data were collected through April 2020. Data cleaning and analysis are ongoing.

Conclusions: We developed and tested protocols for a highly accessible, culturally and linguistically relevant, theory-driven PA intervention for Latino men. Hombres Saludables used an innovative, interactive, web- and text message-based intervention for improving PA among Latino men, an underserved population at risk of low PA and related chronic disease. If the intervention demonstrates feasibility, acceptability, and preliminary efficacy, we will refine and evaluate it in a larger randomized control trial.

Trial registration: Clinicaltrials.gov: NCT03196570; https://ichgcp.net/clinical-trials-registry/NCT03196570.

International registered report identifier (irrid): DERR1-10.2196/23690.

Keywords: Hispanic; Latino; eHealth; expert system; internet; men; mobile phone; physical activity; social media; text messaging.

Conflict of interest statement

Conflicts of Interest: None declared.

©Kim M Gans, Akilah Dulin, Vanessa Palomo, Tanya Benitez, Shira Dunsiger, Laura Dionne, Gregory Champion, Rachelle Edgar, Bess Marcus. Originally published in JMIR Research Protocols (http://www.researchprotocols.org), 29.01.2021.

Figures

Figure 1
Figure 1
Draft intervention logic model.
Figure 2
Figure 2
Hombres Saludables study flow diagram. C: control group; I: intervention group; PAR: physical activity recall; STOHFLA: Short Test of Functional Health Literacy in Adults.

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Source: PubMed

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