Physical Therapy Publications
Document Type
Article
Publication Date
2019
Journal
Archives of Physical Medicine and Rehabilitation
Volume
100
Issue
11
First Page
2129
Last Page
2135
URL with Digital Object Identifier
https://doi.org/10.1016/j.apmr.2019.05.030
Abstract
OBJECTIVES: To assess (1) the effect of task (single and dual task), time (discharge and 4mo), and their interaction for mobility; (2) task prioritization during dual-task testing; and (3) the association between cognition on change in mobility between discharge from rehabilitation and 4 months' follow-up.
DESIGN: Prospective cohort study.
SETTING: Rehabilitation hospital.
PARTICIPANTS: People with lower extremity amputations (N=22) were consecutively recruited at discharge from an inpatient prosthetic rehabilitation program.
INTERVENTIONS: Not applicable.
MAIN OUTCOME MEASURES: Gait velocity and the L Test of Functional Mobility, single and dual task (serial subtractions by 3), were the primary outcomes. Montreal Cognitive Assessment and Trail Making Test quantified cognition as secondary outcomes. Repeated measures analysis of variance evaluated the effects of task (single task and dual task) and time (at discharge and 4 months' follow-up) and their interaction on each outcome. A performance-resource operating characteristic graph evaluated gait and cognitive task prioritization. Multivariable linear regression evaluated the association between cognition and change in mobility over time.
RESULTS: No significant interactions between task and time were found (all P>.121) for L Test and gait velocity. The L Test single task (P=.001) and dual task (P=.004) improved over time. Gait velocity improved over time for both single task and dual task (P
CONCLUSIONS: Gait velocity and L Test single and dual task improved over time. No significant interactions indicated that cognitive task did not differentially affect performance over time. Lower executive function scores at discharge were independently associated with lower gains in all gait velocity and dual-task L Test outcomes at follow-up.
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