Kinematic characterization of clinically observed aberrant movement patterns in patients with non-specific low back pain: a cross-sectional study.

These findings further define observations of movement coordination between the pelvis and lumbar spine for the presence of altered lumbopelvic rhythm and judder. Movement quality of the lumbar spine segment is key to identifying judder. This information will help clinicians better understand and identify aberrant movement patterns in patients with non-specific low back pain.