Summary: Arthrokinematics in a Subgroup of
Patients Likely to Benefit From a
Lumbar Stabilization Exercise Program
Deydre S Teyhen, Timothy W Flynn, John D Childs, Lawrence D Abraham
Background and Purpose
A clinical prediction rule (CPR) has been reported to identify patients with low back
pain who are likely to benefit from stabilization exercises. The aim of this study was
to characterize the spinal motion, using digital fluoroscopic video, of a subgroup of
subjects with low back pain.
Twenty subjects who were positive on the CPR were compared with 20 control
subjects who were healthy.
The magnitude and timing of lumbar sagittal-plane intersegmental angular and linear
displacement were assessed. Receiver operating characteristic curves and accuracy
statistics were used to develop a kinematic model.
A 10-variable model was developed that could distinguish group membership. Seven
of these variables described a disruption in timing of angular or linear displacement
during mid-range movements. None of the variables suggested hypermobility.