A static sound source can improve postural stability during walking
| Autor: | Kristina Anton, Dietmar Basta, Arne Ernst |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Sound localization
medicine.medical_specialty Computer science Posture Walking 03 medical and health sciences 0302 clinical medicine Physical medicine and rehabilitation medicine Auditory system Humans 030223 otorhinolaryngology Postural Balance Balance (ability) Vestibular system Proprioception General Neuroscience Sensory Systems Noise Center of gravity medicine.anatomical_structure Otorhinolaryngology Neurology (clinical) Loudspeaker Vestibule Labyrinth human activities 030217 neurology & neurosurgery |
| Zdroj: | Journal of vestibular research : equilibriumorientation. 31(3) |
| ISSN: | 1878-6464 |
| Popis: | BACKGROUND: During walking, postural stability is controlled by visual, vestibular and proprioceptive input. The auditory system uses acoustic input to localize sound sources. For some static balance conditions, the auditory influence on posture was already proven. Little is known about the impact of auditory inputs on balance in dynamic conditions. OBJECTIVE: This study is aimed at investigating postural stability of walking tasks in silence and sound on condition to better understand the impact of auditory input on balance in movement. METHODS: Thirty participants performed: walking (eyes open), tandem steps, walking with turning head and walking over barriers. During each task, acoustic condition changed between silence and presented noise through an earth-fixed loudspeaker located at the end of the walking distance. Body sway velocity was recorded close to the body’s center of gravity. RESULTS: A decreased body sway velocity was significant for walking (eyes open), tandem steps and walking over barriers when noise was presented. Those auditory stimuli did not affect sway velocity while walking with turning head. The posture has probably improved due to the localization ability when walking with the head facing forward, while the localization ability was impaired when turning the head. CONCLUSIONS: The localization ability of a fixed sound source through the auditory system has a significant but limited impact on posture while walking. |
| Databáze: | OpenAIRE |
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