| Autor: |
Nourhan Ghoraba, Samir Assal, Doaa Elmoazen |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
Journal of Otology, Vol 18, Iss 3, Pp 125-131 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
1672-2930 |
| DOI: |
10.1016/j.joto.2023.05.001 |
| Popis: |
Introduction: Rotatory chair testing has been used to evaluate horizontal canal function. Frequently used tests include sinusoidal harmonic acceleration test (SHAT) and velocity step test (VST). Objectives: Assessment of age effect on the SHAT and VST and assessment of test-retest reliability of the parameters of those two tests. Methods: A prospective study was performed on 100 subjects with no ear or vestibular complaints and normal vestibular evaluation. They were divided into two groups; Group A: below 50 years of age and Group B: 50 years of age or above. SHAT was presented at frequencies 0.02, 0.04, 0.08, 0.16, 0.32, 0.64 Hz with a peak velocity of 60°/s. VST was performed using a maximum velocity of 100°/s with acceleration and deceleration of 200°/s2. Thirty subjects were tested twice to assess reliability. Results: Study participants ranged in age from 20 to 67 years. Regarding group A, the mean age was 30.92 ± 7.31 and 55.36 ± 4.61 for group B. No significant differences were found in SHAT parameters between the two groups. As well, there was no significant difference in VST per-rotatory time constant, however, post-rotatory time constant was significantly longer for Group B (P value |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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