TY  - JOUR
AU  - Bourne, Jessica E
AU  - Little, Jonathan P
AU  - Beauchamp, Mark R
AU  - Barry, Julianne
AU  - Singer, Joel
AU  - Jung, Mary E
PY  - 2019
DA  - 2019/03/26
TI  - 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
JO  - JMIR Res Protoc
SP  - e11226
VL  - 8
IS  - 3
KW  - exercise
KW  - type 2 diabetes
KW  - high-intensity interval training
KW  - prediabetes
AB  - 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 
SN  - 1929-0748
UR  - https://www.researchprotocols.org/2019/3/e11226/
UR  - https://doi.org/10.2196/11226
UR  - http://www.ncbi.nlm.nih.gov/pubmed/30912761
DO  - 10.2196/11226
ID  - info:doi/10.2196/11226
ER  -