Investigators: Pearl Lee
Funding: Michigan Center on the Demography of Aging, 2013-2014
The overall goal of the proposed study is to determine the predictors of changes in physical activity (PA) over 4-years among U.S. middle-aged and older adults with diabetes, prediabetes, and normoglycemia. Regular PA is the cornerstone of diabetes management and prevention, and better understanding of the influential factors on participate in PA can improve effectiveness of PA interventions. Current studies are limited by focusing on cross-sectional analyses, and few population data on adults with prediabetes. We proposed to perform a longitudinal analysis of a biannual, nationally-representative health interview survey data (the Health and Retirement Study [HRS]) with the following Aims and Hypotheses: Specific Aims: 1. Determine the change in PA over 4 years among older adults with diabetes, prediabetes, and normoglycemia (i.e., no diabetes or prediabetes). 2. Determine the predictors of PA change over 4 years among all glycemic groups. Hypotheses: 1. PA declines in all glycemic groups over 4 years. 2. PA decline is associated with older age, female gender, physical function limitations, cognitive impairment, and higher glycohemoglobin A1c (HbA1c).