A long-lever rotary spinal manipulation technique
was used with the patient positioned in a lateral
recumbent or side-lying position with the superior or
free hip and knee flexed and adducted across the
midline. During the procedure, the clinician stabilized
the participant
’
s free leg with his own leg while
holding the participant
’
s superior shoulder; and the
manipulative force was applied with the clinician
’
s
forearm resting on the pelvis. The rotatory thrust on
the pelvis was directed at a localized lumbar segment
(L3-4) and was delivered by a quick, short, controlled
movement of the shoulder and arm combined with a
slight body drop. The manipulation force applied was
localized to the dysfunctional vertebral segment using
alignments of force vectors secondary to participant
positioning