Alkathiry, Abdulaziz
(2017)
THE EFFECT OF RECENT CONCUSSION ON BALANCE DURING SINGLE AND DUAL TASKS IN ADOLESCENTS.
Doctoral Dissertation, University of Pittsburgh.
(Unpublished)
This is the latest version of this item.
Abstract
Purpose: Returning to normal activity without full recovery from concussion may make athletes with concussion more susceptible to a second more severe concussion. Dual-task balance testing has been suggested to provide better assessment of when to return to normal activity. The purpose was to explore changes during single and dual-task balancing conditions over time and to compare sway between adolescents with and without Sports-related Concussion (SRC).
Participants: 25 adolescents (mean age 15.1±1.9 y) with SRC within the past 10 days and 22 matched controls (mean age 15.9±2.1 y).
Materials/Methods: Adolescents with SRC were assessed 3 times: within 10 days of injury, within 14-27 days after injury, and when cleared from concussion. Controls were assessed once. Sway was assessed using a force plate while subjects stood feet-apart on firm or foam surfaces. Balance tests were performed under single-task (without cognitive-task) and dual-task conditions (with cognitive-task). The cognitive-task was a visual reaction time test where adolescents pressed a thumb-switch that either corresponded to the side of the monitor where a rectangle appeared (simple cognitive-task), or corresponded to the direction an arrow was pointing that appeared on either side of the monitor (complex cognitive-task). The dependent variables were the root mean square (RMS) and the normalized path length (NPL) of the sway. A linear mixed model was performed to investigate the main effects and interactions of group, visit, dual-task, cognitive-task, and surface on sway.
Results: The main findings were: no difference in sway between the SRC and control groups; no difference in sway among visits in the SRC group; a dual-task effect that produced reduced NPL sway and greater RMS sway compared with the single-task; increased RMS sway during the perceptual inhibition task compared with the spatial discrimination task; and increased sway during the foam conditions compared with firm surface, which was dependent on the subject groups.
Conclusions: Contrary to previous research, no differences in balance performance were observed between groups with and without SRC, or over time in adolescents with SRC, indicating that the type of dual-task may be an important factor in assessing return to normal activity.
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Details
| Item Type: |
University of Pittsburgh ETD
|
| Status: |
Unpublished |
| Creators/Authors: |
|
| ETD Committee: |
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| Date: |
23 January 2017 |
| Date Type: |
Publication |
| Defense Date: |
15 November 2016 |
| Approval Date: |
23 January 2017 |
| Submission Date: |
7 December 2016 |
| Access Restriction: |
2 year -- Restrict access to University of Pittsburgh for a period of 2 years. |
| Number of Pages: |
231 |
| Institution: |
University of Pittsburgh |
| Schools and Programs: |
School of Health and Rehabilitation Sciences > Health and Rehabilitation Sciences |
| Degree: |
PhD - Doctor of Philosophy |
| Thesis Type: |
Doctoral Dissertation |
| Refereed: |
Yes |
| Uncontrolled Keywords: |
Concussion;vHIT;Dual-task;Balance;mTBI;BESS |
| Date Deposited: |
23 Jan 2017 16:01 |
| Last Modified: |
23 Jan 2019 06:15 |
| URI: |
http://d-scholarship.pitt.edu/id/eprint/30565 |
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