Adjustment Increases Cervical Range of Motion

Toggle-Recoil Adjustments Increase Cervical ROM

Although chiropractic manipulation has been repeatedly shown to increase passive spinal range of motion (ROM), research does not support long-term changes in passive ROM, and the effects of chiropractic adjustments on active cervical ROM remain uncertain. As evidence on the effectiveness of manipulation for treating disorders mounts, establishing a physiological basis for these treatments is warranted.

The purpose of this study was to determine changes in active ROM after spinal manipulation in 105 cervicogenic headache patients. The patients, all experiencing four or more headaches monthly for at least six months, were divided into two groups. Each group underwent three trials: manipulation (toggle-recoil thrust), sham manipulation (deactivated Pettibon instrument), and no treatment. Trials were administered in different orders with three weeks between each; active cervical ROM was measured with an inclinometer that was strapped to the patient’s head.

The spinal manipulation trial significantly increased active ROM in each group immediately after the particular group received treatment, and ROM remained greater throughout the rest of the study. Overall, toggle recoil increased cervical ROM in left/right rotation and lateral flexion an average of 10-11 degrees for both groups. Sham treatment and no treatment had no statistically significant effects on ROM in either group.

This study demonstrates the efficacy of toggle-recoil chiropractic adjustments for improving cervical ROM. The authors add that although some subjects may have been able to differentiate between sham and real manipulation, they were still blinded to outcomes.

Whittingham W, Nilsson N. Active range of motion in the cervical spine increases after spinal manipulation (toggle recoil). Journal of Manipulative and Physiological Therapeutics 2001:24(9), pp. 552-555.




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