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Access Type
WSU Access
Date of Award
January 2022
Degree Type
Dissertation
Degree Name
Ph.D.
First Advisor
Jeffrey J. Martin
Abstract
Background. Traumatic brain injuries (TBI) result from external forces causing damage to the brain and are measured on a continuum of severity. Physical activity (PA) research in this population has shown to improve physical function, mental health, cognitive function, and the amelioration of other specific TBI deficits. Social Cognitive Theory (SCT) is often used to study PA for individuals with TBI, yet few researchers have included all variables that represent the major psychosocial constructs (i.e., self-efficacy (SE), outcome expectations (OE) and social support (SS)) in SCT in a single study.
Purpose. I examined a SCT model predicting PA participation and QOL for individuals with TBIs. I hypothesized that all SCT factors would predict PA participation and that PA participation would mediate SCT variables to QOL.
Methods. Individuals with TBI or their caregivers completed a questionnaire battery including demographic information, injury details, TBI-SE Scale, Exercise SE Scale, Social Influence Scale, Barriers to PA, Multidimensional OE for Exercise Scale, Leisure Time Exercise Questionnaire, and the QOL after Brain Injury Overall Scale. Data was analyzed using Structural Equation Modeling (SEM). A nested model approach was used to determine which model accounted for the most variance when predicting PA and QOL.
Results. There were no significant direct relationships from the SCT factors to PA nor were there any significant indirect effects from the SCT factors to QOL through PA. There were multiple significant direct effects from the SCT factors to QOL, including TBI-SE 95%CI (0.690, 1.233), Negative SS 95%CI (0.347, 0.821), and OE 95%CI (0.194, 0.735). The final model fit was ∆χ2(459) = 849.324, CFI = .910, TLI = .901, SRMR = .087, RMSEA = .066, 90%CI [.059, .073] with the model accounting for 56% of the variance in QOL.
Conclusion. Though SCT factors did not predict PA as hypothesized, the direct relationships to QOL provide important insight for improving life following TBI. Factors such as confidence in management of TBI symptoms, negative feedback from support systems, and higher expectations for PA engagement related to higher QOL.
Recommended Citation
Snapp, Erin E., "Using Social Cognitive Theory To Predict Physical Activity Participation For Individuals With Traumatic Brain Injury" (2022). Wayne State University Dissertations. 3785.
https://digitalcommons.wayne.edu/oa_dissertations/3785