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The Alberta Diabetes and Physical Activity Trial (ADAPT): a randomized trial evaluating theory-based interventions to increase physical activity in adults with type 2 diabetes
Plotnikoff RC, Karunamuni N, Courneya KS, Sigal RJ, Johnson JA, Johnson ST
Annals of Behavioral Medicine 2013 Feb;45(1):45-56
clinical trial
5/10 [Eligibility criteria: Yes; Random allocation: Yes; Concealed allocation: Yes; Baseline comparability: Yes; Blind subjects: No; Blind therapists: No; Blind assessors: No; Adequate follow-up: No; Intention-to-treat analysis: No; Between-group comparisons: Yes; Point estimates and variability: Yes. Note: Eligibility criteria item does not contribute to total score] *This score has been confirmed*

BACKGROUND: Physical activity (PA) is associated with reduced morbidity and mortality in individuals with type 2 diabetes mellitus (T2DM); however, most T2DM adults are insufficiently active. PURPOSE: To explore the effectiveness of two innovative/theoretically based behavioral-change strategies to increase PA and reduce hemoglobin A1c (A1c) in T2DM adults. METHODS: Participants (n = 287) were randomly assigned to a control group or an intervention group (ie, print-based materials/pedometer group or print-based materials/pedometer plus telephone-counseling group). Changes in PA and A1c and other clinical measures were examined by Linear Mixed Model analyses over 18 months, along with moderating effects for gender and age. RESULTS: PA and A1c levels did not significantly change in intervention groups. Step counts significantly increased in the print-based materials and pedometer plus telephone counseling group, for women. CONCLUSIONS: No significant effects were found for PA or A1c levels for T2DM adults. The multi-component strategy including telephone counseling may have potential for women. The trial was registered on ClinicalTrials.gov identifier NCT00221234.

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