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


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          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.


          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.


          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.


          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.


          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://clinicaltrials.gov/ct2/show/NCT03196570

          International Registered Report Identifier (IRRID)


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              Social Foundations of Thought and Action

              Presents a comprehensive theory of human motivation and action from a social-cognitive perspective. This insightful text addresses the prominent roles played by cognitive, vicarious, self-regulatory, and self-reflective processes in psychosocial functioning; emphasizes reciprocal causation through the interplay of cognitive, behavioral, and environmental factors; and systematically applies the basic principles of this theory to personal and social change.

                Author and article information

                JMIR Res Protoc
                JMIR Res Protoc
                JMIR Research Protocols
                JMIR Publications (Toronto, Canada )
                January 2021
                29 January 2021
                : 10
                : 1
                [1 ] Department of Human Development and Family Sciences University of Connecticut Storrs, CT United States
                [2 ] Department of Behavioral And Social Sciences Brown University School of Public Health Providence, RI United States
                [3 ] Cardiovascular Center for Research and Innovation Tufts University Medical Center Boston, MA United States
                Author notes
                Corresponding Author: Kim M Gans kim.gans@ 123456uconn.edu
                ©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.

                This is an open-access article distributed under the terms of the Creative Commons Attribution License ( https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work, first published in JMIR Research Protocols, is properly cited. The complete bibliographic information, a link to the original publication on http://www.researchprotocols.org, as well as this copyright and license information must be included.



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