Moon Hyun-Ju, Goo Bong-Oh, Cho Sung-Hak
Department of Physical Therapy, College of Health Sciences, Catholic University of Pusan, Republic of Korea.
Department of Physical Therapy, College of Health Medicine, Kaya University, Republic of Korea.
J Phys Ther Sci. 2015 Mar;27(3):659-61. doi: 10.1589/jpts.27.659. Epub 2015 Mar 31.
[Purpose] The purpose of this study was to determine the effect of the cocontraction of masticatory muscles during neck stabilization exercises on changes in the thickness of the neck flexors. [Subjects and Methods] Twenty subjects performed neck stabilization only exercise and neck stabilization exercise with simultaneous contraction of the masticatory muscles. Changes in the thickness of the longus colli and sternocleidomastoid were then measured by ultrasound. [Results] The thickness of the longus colli increased significantly fallowing cocontraction of the masticatory muscles and neck stabilization exercise, whereas the exercise method used had no significant effect on the thickness of the sternocleidomastoid. [Conclusion] Cocontraction of the masticatory muscles during neck stabilization exercise is helpful in increasing the thickness of longus colli muscle.
[目的]本研究旨在确定颈部稳定练习期间咀嚼肌协同收缩对颈部屈肌厚度变化的影响。[对象与方法]20名受试者分别进行仅颈部稳定练习以及咀嚼肌同时收缩的颈部稳定练习。然后通过超声测量颈长肌和胸锁乳突肌厚度的变化。[结果]咀嚼肌协同收缩及颈部稳定练习后，颈长肌厚度显著增加，而所采用的练习方法对胸锁乳突肌厚度无显著影响。[结论]颈部稳定练习期间咀嚼肌协同收缩有助于增加颈长肌的厚度。
