- Library Home /
- Search Collections /
- Open Collections /
- Browse Collections /
- UBC Theses and Dissertations /
- Exploring cognitive health in chronic stroke
Open Collections
UBC Theses and Dissertations
UBC Theses and Dissertations
Exploring cognitive health in chronic stroke Bennett, Kimberly
Abstract
Cognitive impairment is a common consequence of stroke that is largely overlooked in post-stroke care. To improve care for cognitive health in stroke, records of lived experience are needed to understand patient priorities. Post-stroke cognition is interrelated with other forms of post-stroke impairment. Specifically, executive performance is cross-sectionally related to mobility post-stroke but it is unknown if this relationship persists over time. This thesis examined: 1) the lived experience of cognitive changes post-stroke and 2) the relationship between executive performance and changes in mobility and balance over time in chronic stroke. Aim 1 was addressed through a qualitative study which captured the experience of post-stroke cognitive changes. This study showed that subjective post-stroke cognitive changes carried meaningful consequences for participants, and identified potential gaps in stroke care. Aim 2 was addressed in sub-analyses of data from a randomized control trial examining the effects of exercise and social and cognitive enrichment on cognition against a control (balance and tone exercises) in community-dwelling older adults (aged 55+ years) with chronic stroke (n=120). Four MANCOVA models were constructed wherein change in mobility was the dependent variable and executive performance and intraindividual variability at baseline were the independent variables; group allocation, age, sex, and education were included as covariates. Change in mobility was quantified through change scores calculated from baseline and 6-month performance on the Timed Up and Go test, the Short Physical Performance Battery and usual gait speed. Separate models were constructed for each independent variable: Digit Span test, Trail-Making Test Ratio, Stroop Colour Word test and intraindividual variability of the Stroop Colour Word test, using Pillai’s Trace. If a significant multivariate test was identified for any independent variable, the univariate F tests were examined. Given the known effect of two study groups: the control group and exercise training, on mobility, the 4 MANCOVA models were run within a sample of all 3 study groups (n=103/120), and a sample of the exercise and control groups (n=74/120). Future studies are needed to better understand whether executive performance or intraindividual variability predicts change in mobility and balance in chronic stroke.
Item Metadata
Title |
Exploring cognitive health in chronic stroke
|
Creator | |
Publisher |
University of British Columbia
|
Date Issued |
2020
|
Description |
Cognitive impairment is a common consequence of stroke that is largely overlooked in post-stroke care. To improve care for cognitive health in stroke, records of lived experience are needed to understand patient priorities. Post-stroke cognition is interrelated with other forms of post-stroke impairment. Specifically, executive performance is cross-sectionally related to mobility post-stroke but it is unknown if this relationship persists over time. This thesis examined: 1) the lived experience of cognitive changes post-stroke and 2) the relationship between executive performance and changes in mobility and balance over time in chronic stroke. Aim 1 was addressed through a qualitative study which captured the experience of post-stroke cognitive changes. This study showed that subjective post-stroke cognitive changes carried meaningful consequences for participants, and identified potential gaps in stroke care. Aim 2 was addressed in sub-analyses of data from a randomized control trial examining the effects of exercise and social and cognitive enrichment on cognition against a control (balance and tone exercises) in community-dwelling older adults (aged 55+ years) with chronic stroke (n=120). Four MANCOVA models were constructed wherein change in mobility was the dependent variable and executive performance and intraindividual variability at baseline were the independent variables; group allocation, age, sex, and education were included as covariates. Change in mobility was quantified through change scores calculated from baseline and 6-month performance on the Timed Up and Go test, the Short Physical Performance Battery and usual gait speed. Separate models were constructed for each independent variable: Digit Span test, Trail-Making Test Ratio, Stroop Colour Word test and intraindividual variability of the Stroop Colour Word test, using Pillai’s Trace. If a significant multivariate test was identified for any independent variable, the univariate F tests were examined. Given the known effect of two study groups: the control group and exercise training, on mobility, the 4 MANCOVA models were run within a sample of all 3 study groups (n=103/120), and a sample of the exercise and control groups (n=74/120). Future studies are needed to better understand whether executive performance or intraindividual variability predicts change in mobility and balance in chronic stroke.
|
Genre | |
Type | |
Language |
eng
|
Date Available |
2021-01-06
|
Provider |
Vancouver : University of British Columbia Library
|
Rights |
Attribution-NonCommercial-NoDerivatives 4.0 International
|
DOI |
10.14288/1.0395482
|
URI | |
Degree | |
Program | |
Affiliation | |
Degree Grantor |
University of British Columbia
|
Graduation Date |
2021-05
|
Campus | |
Scholarly Level |
Graduate
|
Rights URI | |
Aggregated Source Repository |
DSpace
|
Item Media
Item Citations and Data
Rights
Attribution-NonCommercial-NoDerivatives 4.0 International