Predicting Exercise Behavior Among Caregivers of Persons With Dementia-A Longitudinal Investigation Using an Extended Health Belief Model.

Abstract

Family caregivers of persons with dementia face an elevated risk of several chronic illnesses compared to their noncaregiver counterparts. Although exercise is a strong preventive measure for several debilitating health conditions, longitudinal research guided by theoretical frameworks has not identified how behavioral determinants predict exercise among caregivers. This study aimed to investigate how intrapersonal exercise determinants contribute to caregivers' exercise participation while accounting for social-contextual factors, including perceived caregiving burden and pandemic-related distress, by employing an extended Health Belief Model. The study was a longitudinal observational design. Community-dwelling older adult family caregivers of individuals with dementia (n = 127) were recruited with the support of a nonprofit organization. Participants completed measures of the Health Belief Model that also included dual process constructs (intention and habit), along with caregiving burden, pandemic-related distress, and exercise behavior across three consecutive months. Data were analyzed using a multilevel structural equation model with participants (Level 2) nested within time (Level 1). The model revealed direct effects of caregiving burden that debilitate perceived behavioral control, attitudes, threats, and worsen burden, in addition to hampering intention and habit when accounting for total effects. Pandemic-related distress exacerbated caregiving burden and weakened Health Belief Model constructs via total effects. These findings inform constructs to develop a community-based education program for family caregivers to successfully adopt and maintain exercise behavior. Incorporating supportive resources and coping strategies for caregivers of persons with dementia is needed to address the effects of behavioral deterrents.