An investigation of the effects of various proprioceptive inputs on vestibuloocular reflex and otolith organs.

IF 1 4区 医学 Q3 OTORHINOLARYNGOLOGY
Acta Oto-Laryngologica Pub Date : 2025-10-01 Epub Date: 2025-08-31 DOI:10.1080/00016489.2025.2549087
Deniz Uğur Cengiz, Ercan Karababa, Sanem Can Sarıoğlu, Buşra Mazooğlu, Sümeyye Demirel Birişik, Almıla Avşar, Hatice Kübra Bozkurt, İsmail Demir
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引用次数: 0

Abstract

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.

不同本体感觉输入对前庭反射和耳石器官影响的研究。
背景:前庭系统对平衡和凝视稳定性至关重要。来自肌肉骨骼系统的本体感觉输入显著促进前庭处理,特别是在姿势挑战下。目的:探讨不同体位本体感觉输入对前庭眼反射(VOR)和耳石器官功能的影响。材料和方法:30名健康成人(18-40岁,无眩晕症状)在坐、站、单腿站立和平衡盘上四种体位进行颈椎和眼前庭诱发肌原电位(c-VEMP, o-VEMP)和视频头脉冲测试(v-HIT)。主要结局包括vemp的潜伏期、幅度和不对称性;v-HIT对半规管(SCCs)的增益和不对称性。结果:不同体位的c-VEMP潜伏期和振幅无显著差异;然而,振幅不对称性在坐姿和其他状态下有显著差异(p = 0.041)。o-VEMP结果保持一致(p < 0.05)。v-HIT显示,从坐位到盘位,SCC增益逐渐降低,侧位SCC显著降低(p)。结论和意义:本体感觉需求的增加降低了VOR增益,改变了c-VEMP不对称性,反映了前庭脊髓融合增强。这些结果可能是由多感觉相互作用而不是本体感觉输入引起的,强调了姿势控制的综合感觉贡献。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Acta Oto-Laryngologica
Acta Oto-Laryngologica 医学-耳鼻喉科学
CiteScore
2.50
自引率
0.00%
发文量
99
审稿时长
3-6 weeks
期刊介绍: Acta Oto-Laryngologica is a truly international journal for translational otolaryngology and head- and neck surgery. The journal presents cutting-edge papers on clinical practice, clinical research and basic sciences. Acta also bridges the gap between clinical and basic research.
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