Research

Lumbar Spinal Manipulation and Improved Range of Motion

Spine J. 2014 Mar 6. pii: S1529-9430(14)00239-3. doi: 10.1016/j.spinee.2014.02.038.

Lumbar motion changes in chronic low back pain patients.

Mieritz RM1, Hartvigsen J2, Boyle E3, Jakobsen MD4, Aagaard P5, Bronfort G6.

BACKGROUND
Several therapies have been used in the treatment of chronic low back pain, including various exercise strategies and spinal manipulative therapy. A common belief is that spinal motion changes in particular ways in direct response to specific interventions, such as exercise or spinal manipulation.

PURPOSE
The purpose of this study was to assess changes in lumbar region motion over 12 weeks by evaluating four motion parameters in the sagittal plane and two in the horizontal plane in LBP patients treated with either exercise therapy or spinal manipulation.


PATIENT SAMPLE
199 study participants with low back pain of more than six weeks' duration who had spinal motion measures obtained before and after the period of intervention. Lumbar region spinal kinematics sampled using a six-degree-of-freedom instrumented spatial linkage system.

METHODS
Trained therapists collected regional lumbar spinal motion data at baseline and at 12 weeks follow up. The lumbar region spinal motion data were analyzed as a total cohort and relative to treatment modality (high-dose, supervised low-tech trunk exercise, spinal manipulative therapy, and a short course of home exercise and self-care advice).

RESULTS
For the cohort as a whole, lumbar region motion parameters were altered over the 12-week period, except for the jerk index parameter. The group receiving spinal manipulation changed significantly in all, and the exercise groups in half, the motion parameters included in the analysis. The spinal manipulation group changed to a smoother motion pattern (reduced jerk index) while the exercise groups did not.

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