Cheon SongHee, Park SoHyun
Department of Physical Therapy, Youngsan University, Republic of Korea.
J Phys Ther Sci. 2017 Feb;29(2):191-193. doi: 10.1589/jpts.29.191. Epub 2017 Feb 24.
[Purpose] This study investigated changes in neck and upper trunk muscle activities according to the angle of movement of the neck in subjects with Forward Head Posture. [Subjects and Methods] Twenty subjects with forward head postures were recruited. The activities of the sternocleidomastoid muscle, splenius capitis and splenius cervicis muscles, upper trapezius muscle, and middle trapezius muscle during flexion and extension were assessed. [Results] The activity of the sternocleidomastoid muscle showed significant differences between the 30° flexed position and the full range of motion position, and between the neutral position and the full ROM position. The activity of the middle trapezius muscle showed a significant reduction in the 30° extended position and the full ROM position as compared to the neutral position. [Conclusion] In the full flexed position, sternocleidomastoid muscle activity increased significantly, and during extension position, the middle trapezius muscle reduced its activities.
[目的] 本研究调查了头前伸受试者颈部和上躯干肌肉活动随颈部运动角度的变化。[对象与方法] 招募了20名头前伸受试者。评估了胸锁乳突肌、头夹肌、颈夹肌、上斜方肌和中斜方肌在屈伸过程中的活动情况。[结果] 胸锁乳突肌的活动在30°屈曲位与全范围运动位之间以及中立位与全ROM位之间存在显著差异。与中立位相比，中斜方肌的活动在30°伸展位和全ROM位显著降低。[结论] 在完全屈曲位时，胸锁乳突肌活动显著增加，而在伸展位时，中斜方肌活动减少。
