%0 Journal Article
%@ 1929-0748
%I JMIR Publications
%V 8
%N 3
%P e11226
%T Brief Exercise Counseling and High-Intensity Interval Training on Physical Activity Adherence and Cardiometabolic Health in Individuals at Risk of Type 2 Diabetes: Protocol for a Randomized Controlled Trial
%A Bourne,Jessica E
%A Little,Jonathan P
%A Beauchamp,Mark R
%A Barry,Julianne
%A Singer,Joel
%A Jung,Mary E
%+ School of Health and Exercise Sciences, University of British Columbia, Okanagan Campus, 3333 University Way, Kelowna, BC, V1V 1V7, Canada, 1 250 807 96, mary.jung@ubc.ca
%K exercise
%K type 2 diabetes
%K high-intensity interval training
%K prediabetes
%D 2019
%7 26.03.2019
%9 Protocol
%J JMIR Res Protoc
%G English
%X Background: Worldwide incidence of type 2 diabetes (T2D) is rapidly increasing. Given the numerous negative health consequences associated with T2D, prevention of this disease has become a priority. Lifestyle changes, including regular exercise, can reduce the onset of T2D in those at elevated risk. However, long-term adherence to exercise is often poor in this population. Existing lifestyle interventions targeting exercise are labor intensive and costly for staff and participants. Evidence-informed counseling delivered in a manner that reduces dependence on staff and facilitates self-regulatory skills could alleviate time and financial barriers while promoting independent exercise. Objective: This protocol outlines the design, recruitment, and proposed analysis of a brief, 2-week evidence-informed exercise counseling intervention combined with either high-intensity interval training (HIIT) or traditional moderate-intensity continuous training (MICT). Methods: Small Steps for Big Changes is a 2-arm randomized controlled trial that will examine the effectiveness of combining brief exercise counseling with HIIT or MICT on adherence to moderate and vigorous exercise over 1 year. Cardiorespiratory fitness will be assessed at baseline, post intervention (2 weeks), and at 6- and 12-month follow-up. Physical activity behavior will be examined at baseline, post intervention, and 3-, 6-, 9-, and 12-month follow-up. The impact of the intervention on psychosocial outcomes pertinent to exercise adherence will be examined. Results: Data collection was complete in March 2017. Data analysis is currently underway, and the first results are expected to be submitted for publication in 2019. Conclusions: The results of this brief intervention have the potential to inform future public health efforts designed to increase exercise in individuals at risk of T2D. Trial Registration: ClinicalTrials.gov NCT02164474; https://clinicaltrials.gov/ct2/show/NCT02164474 (Archived by WebCite at http://www.webcitation.org/74Hx1ipj6) International Registered Report Identifier (IRRID): DERR1-10.2196/11226 
%M 30912761
%R 10.2196/11226
%U https://www.researchprotocols.org/2019/3/e11226/
%U https://doi.org/10.2196/11226
%U http://www.ncbi.nlm.nih.gov/pubmed/30912761