Hamacher Daniel, Schley Franziska, Hollander Karsten, Zech Astrid
Institute of Sport Science, Friedrich Schiller University Jena, Seidelstraße 20, 07749 Jena, Germany.
Department of Sports and Exercise Medicine, Institute of Human Movement Science, University of Hamburg, Turmweg 2, 20148 Hamburg, Germany; Department of Sports and Rehabilitation Medicine, BG Trauma Hospital of Hamburg, Bergedorfer Str. 10, 21033 Hamburg, Germany.
Hum Mov Sci. 2018 Apr;58:219-223. doi: 10.1016/j.humov.2018.02.010. Epub 2018 Mar 12.
Auditory information affects sensorimotor control of gait. Noise or active noise cancelling alters the perception of movement related sounds and, probably, gait stability. The aim of the current study was to evaluate the effects of noise cancelling on gait stability. Twenty-five healthy older subjects (70 ± 6 years) were included into a randomized cross-over study. Gait stability (largest Lyapunov exponent) in normal overground walking was determined for the following hearing conditions: no manipulation and active noise cancelling. To assess differences between the two hearing conditions (no manipulation vs. active noise cancelling), Student's repeated measures t-test was used. The results indicate an improvement of gait stability when using active noise cancelling compared to normal hearing. In conclusion, our results indicate that auditory information might not be needed for a stable gait in elderly.
听觉信息会影响步态的感觉运动控制。噪音或主动降噪会改变对与运动相关声音的感知，并且可能影响步态稳定性。本研究的目的是评估降噪对步态稳定性的影响。25名健康的老年受试者（70±6岁）被纳入一项随机交叉研究。在以下听力条件下测定正常地面行走时的步态稳定性（最大Lyapunov指数）：无干预和主动降噪。为评估两种听力条件（无干预与主动降噪）之间的差异，使用了学生重复测量t检验。结果表明，与正常听力相比，使用主动降噪时步态稳定性有所改善。总之，我们的结果表明，老年人稳定步态可能不需要听觉信息。
