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The contribution of hearing to normal balance
R G Kanegaonkar1, K Amin, M Clarke
1ENT Department, Medway Maritime Hospital, Gillingham, UK. rahulkanegaonkar@gmail.com
The Journal of Laryngology and Otology
|August 22, 2012
Summary
This study shows that hearing and ambient sound significantly influence postural control in healthy individuals. Reduced postural sway was observed when participants could hear normally, highlighting the importance of auditory input for balance.
Area of Science:
- Neuroscience
- Biomechanics
- Sensory Integration
Background:
- Normal balance depends on visual, proprioceptive, and vestibular systems.
- This study investigates the impact of hearing on postural control.
Purpose of the Study:
- To assess the influence of hearing changes on postural control in healthy subjects.
- To evaluate the effectiveness of a low-cost tool for measuring static postural control.
Main Methods:
- 20 healthy volunteers participated.
- Postural sway was measured using a Nintendo Wii balance board.
- Testing involved varying conditions: eyes open/closed, on/off foam, normal/soundproof room, with/without ear defenders.
Main Results:
- Increased postural sway was observed with eyes closed, on foam, and in a soundproof room.
- Wearing ear defenders in a soundproof room on foam also increased sway.
- Significantly more sway occurred in conditions with reduced visual or auditory input.
Conclusions:
- A simple, inexpensive method using a gaming console can assess static postural control.
- Auditory input, alongside vision and proprioception, plays a significant role in maintaining balance.
- Hearing may be an underappreciated factor in postural stability.
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