Human Performance Laboratory, Faculty of Kinesiology, University of Calgary, Canada.
J Electromyogr Kinesiol. 2012 Oct;22(5):747-51. doi: 10.1016/j.jelekin.2012.02.004. Epub 2012 Mar 7.
Cervical spinal manipulative therapy (cSMT) is a common therapeutic modality used in the treatment of neck pain and headaches. Cadaveric necks have been used as a model for assessing the effects of cSMT on vertebral artery mechanics. However, there have been no previous studies comparing the biomechanical indices of cSMT performed in living subjects versus cadavers.
The preload force, peak force and duration of cSMT performed by two chiropractors were recorded in 28 subjects with and without neck pain, and in five cadavers.
There were no statistical differences in terms of the preload, peak force and duration of cSMT in living subjects with versus without neck pain. However, all three parameters differed statistically in living subjects versus cadavers; and both preload and peak forces were significantly higher for cadaveric cSMT; the average peak force was 190.3±85.5N (mean±SD) in living subjects, versus 283.9±53.6N in cadavers. Furthermore, the duration was significantly faster for cadaveric cSMT (175±100ms in living subjects versus 120±30ms in cadavers. These observations were consistent for both chiropractors.
When performed in cadavers, cSMT tends to be more "aggressive" in terms of all biomechanical indices used to describe cSMT.
颈椎推拿疗法（cSMT）是治疗颈痛和头痛的常用治疗方法。尸体颈部已被用作评估 cSMT 对椎动脉力学影响的模型。然而，以前没有研究比较活体和尸体中进行的 cSMT 的生物力学指标。
两名脊椎治疗师在有和没有颈痛的 28 名受试者以及 5 具尸体上记录了 cSMT 的预加载力、峰值力和持续时间。
有颈痛和无颈痛的活体受试者之间的 cSMT 预加载、峰值力和持续时间没有统计学差异。然而，所有三个参数在活体受试者与尸体之间均存在统计学差异；并且尸体 cSMT 的预加载力和峰值力均显著更高；活体受试者的平均峰值力为 190.3±85.5N（均值±标准差），而尸体的峰值力为 283.9±53.6N。此外，尸体 cSMT 的持续时间明显更快（活体受试者为 175±100ms，而尸体为 120±30ms）。两位脊椎治疗师均观察到了这些结果。
在尸体上进行 cSMT 时，从用于描述 cSMT 的所有生物力学指标来看，它往往更具“攻击性”。
