Immediate Effect of Cervical and Sacroiliac Manipulation on the Autonomic Nervous System and Balance

The patient was asked to tie his arms while he was in the side lying position. The patient's upper knee was flexed and positioned such that it was placed in the popliteal fossa of the lower knee, while the lower knee was in full extension. Pushing maneuver was performed with HVLA from posterior to anterior and from medial to lateral with pelvic rotation. The contact point of the sacroiliac joint was PSIS.

Cervical SM was applied supine to restrictions found on motion palpation, according to the technique described by Bergmann and Peterson28 The participant's head and neck were simultaneously rotated and laterally flexed over the contact point-specifically, the posterior supramastoid groove or zygomatic arch (C0-C1), the posterior aspect of the transverse process (C1-C2), or the posterior articular pillar of superior vertebrae (C2-C7) -to the end of passive ROM. Thereafter, a high-velocity, low-amplitude thrust was delivered in the direction of restricted movement. Participants with more ROM restriction in the lateral plane were given more lateral-to-medial directed thrusts; participants with more restriction in rotation were given thrusts in the direction of restricted axial rotation; and participants with more restriction in extension were given more anteriorly directed thrusts.