Factors Associated With Physical Activity in Alzheimer's Disease: A Cross-Sectional Study of Individuals and Their Caregivers

Introduction Physical activity (PA) is associated with better outcomes in individuals living with Alzheimer's and related dementia (ADRD). We examined environmental, intra-, and interpersonal correlates of PA for persons living with ADRD.Methods PA (accelerometry), cognitive function, physical function, and sociodemographic factors were collected in adults with ADRD and their caregivers. Spearman's correlations and generalized linear models were used to evaluate factors associated with PA of persons living with ADRD.Results Valid data were obtained from 65 pairs of adults living with ADRD (73.6 +/- 8.4 years, 39.4% female) and caregivers (69.4 +/- 9.4 years, 69.2% female, 93.8% spouse). Moderate-to-vigorous PA (MVPA) and light PA of persons living with ADRD were correlated with upper and lower body strength, aerobic fitness, and agility. MVPA and sedentary time of persons living with ADRD were associated with that of their caregiver.Conclusion Physical function and caregiver PA may be targets for interventions in those living with ADRD.