Majewska Anna, Kawałkiewicz Weronika, Hojan-Jezierska Dorota, Jezierska Agata, Kubisz Leszek
Department of Hearing Healthcare Profession, Chair of Biophysics, Poznań University of Medical Sciences.
Department of Biophysics, Chair of Biophysics, Poznań University of Medical Sciences.
Acta Bioeng Biomech. 2017;19(2):113-119.
The purpose of this study was to assess if 65 dB and 4000 Hz stimuli affect postural stability of young normally hearing people.
Posturography examinations belong to clinical tests which evaluate the motor skills. Posturography can be divided into static posturography and dynamic posturography. In both static and dynamic posturography patient stays on the platform with opened and closed eyes, but in the case of dynamic one, platform is unstable. In this study the Multitest Equilibre platform produced by FRAMIRAL was used. Patients took part in tests with opened and closed eyes, on stable and unstable platform. Additionally, patients were exposed to 65 dB and 4000 Hz acoustic stimuli. The sound pressure level, and frequency was belonging to the best audibly frequency range.
Parameters such as velocity and surface were examined. The difference between velocity measured with acoustic stimuli and without acoustic stimuli was observed. On the other hand there was no difference in surface results.
The statistically significant difference between velocity of patients center of gravity movements, measured on unstable platform, in the presence of 4000 Hz, 65 dB acoustic stimulus and without additional disturbances was observed.
本研究的目的是评估65分贝和4000赫兹的刺激是否会影响听力正常的年轻人的姿势稳定性。
姿势描记检查属于评估运动技能的临床测试。姿势描记可分为静态姿势描记和动态姿势描记。在静态和动态姿势描记中，患者都要在平台上睁眼和闭眼，但在动态姿势描记中，平台是不稳定的。在本研究中，使用了由FRAMIRAL生产的Multitest Equilibre平台。患者在睁眼和闭眼的情况下，在稳定和不稳定的平台上参加测试。此外，患者还受到65分贝和4000赫兹的声刺激。声压级和频率属于最佳可听频率范围。
检查了速度和面积等参数。观察到有声刺激和无声刺激时测量的速度之间的差异。另一方面，面积结果没有差异。
在不稳定平台上，在4000赫兹、65分贝声刺激存在且无额外干扰的情况下，观察到患者重心移动速度之间存在统计学上的显著差异。
