《中国康复理论与实践》

《中国康复理论与实践》 ›› 2012, Vol. 18 ›› Issue (12): 1158-1159.

• 论文 • 上一篇    下一篇

头颈前屈和后伸运动中胸锁乳突肌作用的肌电图测定和力学分析

梅唯奇1a，朱红华1b，郑正涛2   

  1. 1.珠海市卫生学校，a：解剖学教研室；b：康复医学教研室，广东珠海市519020；2.中山大学附属第五医院肌电图室，广东珠海市519000。作
  • 收稿日期:2012-07-04 修回日期:2012-10-17 出版日期:2012-12-25 发布日期:2012-12-25
  • 通讯作者: 朱红华

Biomechanical Analysis and Electromygraphy for Sternocleidomastoideus Contraction on Neck Flexion and Extention

MEI Wei-qi,ZHU Hong-hua, ZHENG Zheng-tao   

  1. Department of Anatomy, Zhuhai Health School, Zhuhai 519020, Guangdong, China
  • Received:2012-07-04 Revised:2012-10-17 Published:2012-12-25 Online:2012-12-25

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被引次数

1

摘要： 目的研究双侧胸锁乳突肌收缩在头颈前屈和后伸运动中的作用。方法以24 名正常学生为受试对象，在仰卧位颈部放松和前屈运动时、俯卧位颈部放松和后伸运动时分别进行肌电图测定，并利用解剖学标本及模型进行力学测量和生物力学分析。结果在仰卧位颈部放松、俯卧位颈部放松和后伸时，胸锁乳突肌均为电静息电位；在仰卧位颈部前屈时，胸锁乳突肌运动单位电位募集类型均为混合相。结论在颈椎关节不固定状态下，双侧胸锁乳突肌收缩使头颈部前屈；在固定寰枕关节以下颈部关节时，双侧胸锁乳突肌收缩使头后伸。

关键词: 胸锁乳突肌, 屈伸运动, 作用

Abstract: Objective To investigate the effects of bilateral sternocleidomastoideus contraction on neck flexion and extension. Methods The electromyograms (EMG) signals of left sternocleidomastoideus of 24 healthy persons were recorded respectively when neck relaxation and flexion in the supine position, and neck relaxation and extension in the prone position. The biomechanical measurement and analysis were done using anatomical specimens and models. Results The sternocleidomastoideus registered electrical resting potential when neck relaxation in the supine position, and when neck relaxation and extension in the prone position; the motor unit action potential of sternocleidomastoideus raised the type of mixed phase when neck flexion in the supine position. Conclusion The contractions of bilateral sternocleidomastoideus can lead to the head and neck flexion while neck joints are not fixed, and the contractions of bilateral sternocleidomastoideus can lead to the head extension under the state of fixing neck joints below atlanto-occipital.

Key words: sternocleidomastoideus, flexion and extension, effect