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. 2024 Jun 25;14(4):572-580.
doi: 10.3390/audiolres14040048.

Postural Stability of Adolescents with Late Cochlear Implantation and Hearing Aids: A Non-Randomized Trial

Anna Zwierzchowska  1 , Eliza Gaweł  1 , Agata Krużyńska  2 , Kajetan J Słomka  1 , Aleksandra Żebrowska  1 , Grzegorz Juras  1
Affiliations

Postural Stability of Adolescents with Late Cochlear Implantation and Hearing Aids: A Non-Randomized Trial

Anna Zwierzchowska et al. Audiol Res. .

Abstract

Background: The aim of this study was to assess the neuromuscular control of adolescents with late unilateral cochlear implantation and compare them to adolescents with hearing aids (HAs) while performing a balance task on a platform with the conditions of an activated hearing device (cochlear implant (CI)/HAs) with eyes opened/closed (EO/EC). Methods: Forty-eight adolescents with hearing loss participated in the study and were divided into SG (unilateral CI and HA) and CG (bilateral HA). The evaluation of the postural stability was performed with a force plate during two repeating testing trials with EO/EC. Results: SG was characterized by greater values of vCOP compared to CG (EO), while, in CG, greater values of vCOP were noted in the second trial. The type of hearing device was found to be related to the values of area (EO) (p < 0.001), which were always greater in SG, regardless of the visual perception. Conclusions: Late unilateral CI may impact the activation of different models of the auditory compensatory mechanism than HA, which is related to neuromuscular control. The values of vCOP can be predicted by age in late-CI individuals. Visual perception seems not to be related to the values of the area, which can be impacted both by CI and HA.

Keywords: balance; cochlear implant; deafness; hearing loss; vestibular disfunction.

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Conflict of interest statement

The authors declare no conflicts of interest.

Figures

Figure 1
Figure 1
Schematic representation of the non-randomized trial design.
Figure 2
Figure 2
Differentiation of vCOP (velocity of the center of foot pressure, adjusted) (p < 0.05) in the SG (study group) and CG (control group) under the conditions of EO × CI/HA activated (eyes open with cochlear implant/hearing aid activated) and EC × CI/HA activated (eyes closed with cochlear implant/hearing aid activated). Higher vCOP values indicate greater speeds of center of pressure movement, which may suggest reduced postural stability.
Figure 3
Figure 3
Differentiation of the area (adjusted) (p < 0.05) in the SG (study group) and CG (control group) under the conditions of EO × CI/HA activated (eyes open with cochlear implant/hearing aid activated) and EC × CI/HA activated (eyes closed with cochlear implant/hearing aid activated).
See this image and copyright information in PMC

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