Kawchuk G N, Herzog W, Hasler E M
Faculty of Physical Education, University of Calgary, Alberta, Canada.
J Manipulative Physiol Ther. 1992 Jun;15(5):275-8.
To determine the forces imparted to the cervical spine using direct sampling methods during a clinical episode of spinal manipulative therapy.
Quantitative study.
Human Performance Laboratory, University of Calgary.
Two doctor/patient pairs. Patients were selected by the treating chiropractors from their existing patients pools.
SMT to the cervical spine (toggle method) on three separate occasions over a 2-wk period. The clinical relevancy of the treatment was assessed via before and after measures of tissue compliance.
a) Forces during manipulation: preload and peak forces. b) Duration of applied forces.
a) Mean peak force = 117.7 N (+/- 15.6 N). b) Mean duration of force = 101.7 msec (+/- 14.7 msec).
The forces obtained with direct sampling methods compare favorably to previous measurements obtained from indirect sampling techniques, yet the force duration times are smaller (faster) using the direct method.
采用直接采样方法测定脊柱手法治疗临床过程中施加于颈椎的力。
定量研究。
卡尔加里大学人体性能实验室。
两对医生/患者。患者由主治脊医从其现有患者群体中挑选。
在2周内分三次对颈椎进行脊柱手法治疗（toggle法）。通过治疗前后组织顺应性测量评估治疗的临床相关性。
a）手法操作时的力：预加载力和峰值力。b）施加力的持续时间。
a）平均峰值力 = 117.7 N（±15.6 N）。b）平均力持续时间 = 101.7毫秒（±14.7毫秒）。
直接采样方法获得的力与先前通过间接采样技术获得的测量结果相比具有优势，但使用直接方法时力的持续时间更短（更快）。
