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Postural Control During Dual Task in Adolescent Cochlear Implant Users Under On/Off-Device Conditions Publisher



Nadimi Z1 ; Adel Ghahraman M1 ; Mohammadkhani G1 ; Hoseinabadi R1 ; Jalaie S2 ; Malmir K3 ; Mazaheryazdi M4 ; Emamdjomeh H5
Authors
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Authors Affiliations
  1. 1. Department of Audiology, School of Rehabilitation, Tehran University of Medical Sciences, Tehran, Iran
  2. 2. School of Rehabilitation, Tehran University of Medical Sciences, Tehran, Iran
  3. 3. Department of Physiotherapy, School of Rehabilitation, Tehran University of Medical Sciences, Tehran, Iran
  4. 4. Department of Audiology, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran
  5. 5. ENT and Head and Neck Research Center and Department, Hazrat Rasoul Hospital, The Five Senses Institute, Iran University of Medical Sciences, Tehran, Iran

Source: Auditory and Vestibular Research Published:2021


Abstract

Background and Aim: Vestibular system has several anatomical connections with cognitive regions of the brain. Vestibular disorders have negative effects on cognitive performance. Hearing-impaired patients, particularly cochlear implant users, have concomitant vestibular disorders. Previous studies have shown that attention assigned to postural control decreases while performing a cognitive task (dual task) in hearing-impaired children. Since the vestibular system and postural control performance develop around 15−16 years of age, the aim of this study was to compare postural control performance during dual task in adolescent boys with normal hearing and cochlear implant (CI) users with congenital hearing-impairment. Methods: Postural control was assessed in twenty 16−19 year old cochlear implant boys and 40 normal hearing peers with force plate. The main outcomes were displacement in posterior-anterior and medial-lateral planes, and mean speed with and without cognitive task and under on/off-device conditions. Caloric test was performed for CI users in order to examine the peripheral vestibular system. Results: Ninety-five percent of CI users showed caloric weakness. There were no significant differences in postural control parameters between groups. All performances deteriorated in the foam pad condition compared to the hard surface in all groups. Total mean velocity significantly increased during dual task in normal hearing group and in CI users with off-device. Conclusion: Although CI users had apparent vestibular disorders, their postural control in both single and dual-task conditions was identical to the normal peers. These effects can be attributed to the vestibular compensation that takes place during growing. © 2021 Tehran University of Medical Sciences.
Related Docs
1. Study of the Effects of Hearing on Static and Dynamic Postural Function in Children Using Cochlear Implants, International Journal of Pediatric Otorhinolaryngology (2017)
2. Influence of Cochlear Implantation on Balance Function in Pediatrics, International Tinnitus Journal (2020)
3. The Development of Postural Control Among Children: Repeatability and Normative Data for Computerized Dynamic Posturography System, Gait and Posture (2020)
Experts (# of related papers)
Shohreh Jalaei (1)