An investigation of the effects of various proprioceptive inputs on vestibuloocular reflex and otolith organs
Küçük Resim Yok
Tarih
2025
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Taylor & Francis Ltd
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Background The vestibular system is crucial for balance and gaze stability. Proprioceptive inputs from the musculoskeletal system significantly contribute to vestibular processing, especially under postural challenge. Objectives To examine how proprioceptive inputs in various body positions affect the vestibulo-ocular reflex (VOR) and otolith organ function. Materials and methods Thirty healthy adults (18-40 years, no vertiginous symptoms) underwent cervical and ocular vestibular evoked myogenic potentials (c-VEMP, o-VEMP) and video head impulse testing (v-HIT) in four positions: sitting, standing, one-leg standing, and on a balance disk. Primary outcomes included latency, amplitude, and asymmetry for VEMPs; gain and asymmetry for semicircular canals (SCCs) via v-HIT. Results c-VEMP latencies and amplitudes did not differ significantly across positions; however, amplitude asymmetry was significantly different between sitting and other conditions (p = .041). o-VEMP results remained consistent (p > .05). v-HIT revealed progressively reduced SCC gain from sitting to disk stance, with significant decreases in lateral SCCs (p < .05) and vertical SCCs (p < .001); asymmetry remained stable. Conclusions and significance Increased proprioceptive demand reduced VOR gain and modified c-VEMP asymmetry, reflecting enhanced vestibulospinal engagement. These outcomes likely arise from multisensory interactions rather than proprioceptive input alone, underscoring integrated sensory contributions to postural control.
Açıklama
Anahtar Kelimeler
Proprioceptive system, vestibulo-ocular reflex, video head impulse test, vestibular evoked myogenic potentials, posture
Kaynak
Acta Oto-Laryngologica
WoS Q Değeri
Q3
Scopus Q Değeri
Q2
Cilt
145
Sayı
10
