Department of Otolaryngology-Head and Neck Surgery, Iwate Medical University, Shiwa, Iwate, Japan.
Faculty of Social Welfare, Iwate Prefectural University, Takizawa, Iwate, Japan.
PLoS One. 2021 Oct 13;16(10):e0258590. doi: 10.1371/journal.pone.0258590. eCollection 2021.
The purpose of this study was to evaluate the effect of hearing aids on body balance function in a strictly controlled auditory environment.
We recorded the findings of 10 experienced hearing aid users and 10 normal-hearing participants. All the participants were assessed using posturography under eight conditions in an acoustically shielded non-reverberant room: (1) eyes open with sound stimuli, with and without foam rubber, (2) eyes closed with sound stimuli, with and without foam rubber, (3) eyes open without sound stimuli, with and without foam rubber, and (4) eyes closed without sound stimuli, with and without foam rubber.
The auditory cue improved the total path area and sway velocity in both the hearing aid users and normal-hearing participants. The analysis of variance showed that the interaction among eye condition, sound condition, and between-group factor was significant in the maximum displacement of the center-of-pressure in the mediolateral axis (F [1, 18] = 6.19, p = 0.02). The maximum displacement of the center-of-pressure in the mediolateral axis improved with the auditory cues in the normal-hearing participants in the eyes closed condition (5.4 cm and 4.7 cm, p < 0.01). In the hearing aid users, this difference was not significant (5.9 cm and 5.7 cm, p = 0.45). The maximum displacement of the center-of-pressure in the anteroposterior axis improved in both the hearing aid users and the normal-hearing participants.
本研究旨在评估在严格控制的听觉环境中，助听器对身体平衡功能的影响。
我们记录了 10 名经验丰富的助听器使用者和 10 名正常听力参与者的发现。所有参与者均在隔音无混响室内的八项条件下进行了平衡测试：（1）睁眼有声刺激，有和没有泡沫橡胶，（2）闭眼有声刺激，有和没有泡沫橡胶，（3）睁眼无声刺激，有和没有泡沫橡胶，（4）闭眼无声刺激，有和没有泡沫橡胶。
听觉提示改善了助听器使用者和正常听力参与者的总路径面积和摆动速度。方差分析表明，眼条件、声条件和组间因素之间的相互作用在中压心最大位移的横轴向（F[1,18]=6.19，p=0.02）显著。在闭眼条件下，正常听力参与者的中压心最大位移随听觉提示而改善（5.4cm 和 4.7cm，p<0.01）。在助听器使用者中，这一差异不显著（5.9cm 和 5.7cm，p=0.45）。前后轴向的中压心最大位移在助听器使用者和正常听力参与者中均有改善。
