J Orthop Sports Phys Ther. 1991;13(5):220-5. doi: 10.2519/jospt.1991.13.5.220.
The effect of cervical traction on the musculature of patients with complaints of neck pain has not been thoroughly researched. Lateral neck muscles were selected for study because they receive their innervation from the lower cervical region, where traction has been documented by radiography to have its greatest mechanical effects. Six subjects with complaints of neck pain, limited range of motion, and a positive quadrant test were compared to six normal subjects. Surface electromyography (EMG) of the lateral neck musculature was recorded before, during, and after supine intermittent mechanical traction. No significant difference between groups (p > .05) was noted in EMG recordings at rest and within 10 minutes of traction. Subjective relief was noted up to 12 hours after traction in pain subjects. Cervical traction does not appear to produce immediate muscular relaxation as measured with EMG equipment. J Orthop Sports Phys Ther 1991;13(5):220-225.
颈椎牵引对颈痛患者肌肉的影响尚未得到彻底研究。选择侧颈肌肉进行研究，是因为它们的神经支配来自颈椎下部，影像学显示颈椎下部的牵引具有最大的机械效应。将 6 名有颈痛、运动范围受限和象限试验阳性的患者与 6 名正常受试者进行比较。在仰卧间歇性机械牵引前后，对侧颈肌进行表面肌电图（EMG）记录。在休息时和牵引后 10 分钟内，两组之间的 EMG 记录没有显著差异（p>.05）。在疼痛患者中，在牵引后 12 小时内可观察到主观缓解。使用肌电图设备测量，颈椎牵引似乎不会立即产生肌肉松弛。J Orthop Sports Phys Ther 1991;13(5):220-225。
