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Ann Behav Med. 2013 Feb;45(1):45-56. doi: 10.1007/s12160-012-9405-2.

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.

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  • 1Priority Research Centre in Physical Activity and Nutrition, University of Newcastle, Callaghan, NSW, Australia. ron.plotnikoff@newcastle.edu.au



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.


To explore the effectiveness of two innovative/theoretically based behavioral-change strategies to increase PA and reduce hemoglobin A1c (A1c) in T2DM adults.


Participants (n = 287) were randomly assigned to a control group or an intervention group (i.e., 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.


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.


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.

[PubMed - indexed for MEDLINE]
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