| A New Method for Vestibulo-Collic Reflex. |
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Moon, Do Jun , Choi, Kyu Chuol , Yoon, Seung Hyun , Jeon, Bo Hyun , Rah, Ueon Woo , Lee, Il Yung , Yim, Shin Young |
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Department of Physical Medicine and Rehabilitation, Ajou University School of Medicine. syyim@ajou.ac.kr |
| 새로운 전정-경 반사 검사법 |
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문도준, 최규철, 윤승현, 전보현, 나은우, 이일영, 임신영 |
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아주대학교 의과대학 재활의학교실 |
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| Abstract |
Objective
Vestibulo-collic reflex (VCR) has been thought to be a simple and reliable test in evaluating the vestibular function. But it can only be examined by actively contracting the sternocleidomastoid muscle (SCM) and it would be impossible to conduct the examination without the cooperation of the subject. The aim of this study was to demonstrate a new method for VCR in the absence of the subject's cooperation.
Method
Records were collected from 20 volunteers. Each subject was properly positioned on the bed with the head flexed, ipsilaterally bent and contralaterally rotated. An active electrode was placed over the belly of the SCM. 100 dB clicks were delivered through headphones. We compared the active contraction and passive positioning of the SCM in terms of the P1 latency and amplitude.
Results
Vestibular-evoked myogenic potentials (VEMPs) were recorded without actively contracting the SCMs for all the subjects by using our new method. There was no difference in P1 latency and amplitude between the active contraction and passive positioning of the SCM.
Conclusion
With our new method, VEMPs can be recorded without actively contracting the SCM. It may be useful for evaluating the vestibular function of children and patients who cannot cooperate. (J Korean Acad Rehab Med 2006; 30: 19-24) |
| Key Words:
Vestibular function test, Vestibulo-collic reflex, Vestibular-evoked myogenic potential, Sternocleidomastoid muscle |
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