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dc.contributor.advisor | Reddy, Tarryn | |
dc.contributor.coadvisor | Heinze, Barbara M. | |
dc.contributor.coadvisor | Kiderman, Alex | |
dc.contributor.coadvisor | González, Jorge | |
dc.contributor.postgraduate | Mittendorf, Nicole | |
dc.date.accessioned | 2023-02-08T14:03:49Z | |
dc.date.available | 2023-02-08T14:03:49Z | |
dc.date.created | 2023-04-24 | |
dc.date.issued | 2022 | |
dc.description | Dissertation (MA (Audiology))--University of Pretoria, 2022. | en_US |
dc.description.abstract | Objective: This study aimed to determine the test-retest reliability of the computerized rotational head impulse test (crHIT) as an additional clinical tool to assess horizontal semi-circular canal (HSCC) function in the pediatric population. Methods: To determine the test-retest reliability of the crHIT, the study included 29 normally developing children with a mean age of 12.2 years ± 2.7 (range: 8-17 years) with no history of vestibular symptoms and disorders. Participants underwent two crHITs within one session and one crHIT within 4 weeks in the following session. Each crHIT included two protocols: one using an earth-bound target and the other using a head-fixed target. The test-retest reliability was determined using a quantitative research approach with a repeated measures design. Results: The mean aVOR gains for both stationary and suppression crHIT ranged from 0.93 – 1.01, with gains being lower for suppression compared to stationary crHIT. For stationary crHIT the ANOVA regression was not statistically significant for both leftward (within-session p=0.021 & between-session p=0.015) and rightward (within session p=0.052 & between-session p=0.038) rotations, indicating no linear relationship between the differences and the averages, revealing a good test-retest reliability. For the suppression crHIT the regression of the differences was statistically significant for both leftward (within-session p=0.608 & between-session p=0.318) and rightward (within-session p=0.631 & between-session p=0.523) rotations. A positive relationship was observed for within-session and a negative relationship for between session measurements. The suppression crHIT did not yield a good test-retest reliability, but the differences measured were smaller for between-session compared to within-session. Conclusions: The stationary crHIT is a reliable clinical tool in assessing HSCC functioning in the pediatric population as it demonstrates good test-retest repeatability. Therefore, extending the pediatric vestibular test battery with crHIT can be a valuable diagnostic tool without adding to the overall test time. The suppression crHIT does not present with a good test-retest reliability due to the VOR inhibition reducing the gain with each impulse. Further research is needed to determine whether the statistically significant regression is clinically significant. | en_US |
dc.description.availability | Unrestricted | en_US |
dc.description.degree | MA (Audiology) | en_US |
dc.description.department | Speech-Language Pathology and Audiology | en_US |
dc.identifier.citation | * | en_US |
dc.identifier.doi | 10.25403/UPresearchdata.22047107 | en_US |
dc.identifier.other | A2023 | en_US |
dc.identifier.uri | https://repository.up.ac.za/handle/2263/89347 | |
dc.language.iso | en | en_US |
dc.publisher | University of Pretoria | |
dc.rights | © 2022 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. | |
dc.subject | Clinical tool | en_US |
dc.subject | Computerized head impulse test | en_US |
dc.subject | Horizontal semi-circular canal functioning | en_US |
dc.subject | Pediatric vestibular assessment | en_US |
dc.subject | Vestibular test battery | en_US |
dc.subject | UCTD | |
dc.title | Test-retest reliability of the computerized rotational head impulse test in the pediatric population | en_US |
dc.type | Dissertation | en_US |