Sternocleidomastoid Tendon Reflex in Normal Korean Adults.

, Lee, Ju Kang; , Lim, Oh Kyung; , Lim, Yoon Myung; , Ha, Tae Ho; , Choi, Moo Rim; , Kim, Do Hoon; , Yi, Tae Im; , Park, Gi Young

Original Article

Journal of the Korean Academy of Rehabilitation Medicine 1999;23(6):1207-1212.

Lee, Ju Kang , Lim, Oh Kyung , Lim, Yoon Myung , Ha, Tae Ho , Choi, Moo Rim , Kim, Do Hoon , Yi, Tae Im , Park, Gi Young

¹Department of Rehabilitation Medicine, Gachon Medical School.
²Department of Rehabilitation Medicine, Pundang Jesaeng General Hospital.
³Department of Rehabilitation Medicine, Keimyung University College of Medicine.

한국 정상성인의 흉쇄유돌근 건반사

이주강, 임오경, 임윤명, 하태호, 최무림, 김도훈, 이태임¹, 박기영²

가천의과대학 재활의학과, ¹분당제생병원 재활의학과 및 ²계명대학교 의과대학 재활의학교실

Abstract

Object: The purpose of this study was to establish the normal values of sternocleidomastoid (SCM) tendon reflex in normal Korean adults.

Method
The study for SCM tendon reflex was performed in 41 normal adults using electric reflex hammer. The compound muscle action potentials (CMAP) of SCM muscle were obtained by SCM tendon tapping. From 5 repeated trials of each subject, the shortest latency and the largest peak-to-peak amplitude of CMAP were chosen for the representative value.

Results
Mean values of latency and amplitude were 2.19⁑0.27 msec and 0.70⁑0.38 mV for SCM tendon reflex. There was no significant difference in the latency and amplitude regardless of side or sex (p＞0.05). The age and height showed no signifiant correlation with latency and amplitude of SCM tendon reflex (p＞0.05).

Conclusion
We believe that our results can be used as an evaluation method of upper cervical spinal cord.

Key Words: Sternocleidomastoid tendon reflex, Electric reflex hammer