Analysis of Lumbar and Hip Motion during Forward Bending in Non-Specific Chronic Low Back Pain Patients (Active Extension Pattern) and Healthy Subjects

Aim and Low Back Pain (LBP) is one of the most common and main musculoskeletal pain syndromes. Previous studies have been reported different movement patterns in low back patients. This is may be due to the inclusion of the subjects with widely varying movement patterns in a single LBP group. Nowadays, several studies have proposed that there are subgroups of people with LBP. So the aim of this study was comparison of range of motion and patterns of lumbar and hip movement between LBP patient (active extension pattern) and people with no history of LBP.
Methods and Materials: Two angles (Lumbar and Hip) and also lumbar to hip ratio were measured during standing forward bending test in 9 non-specific LBP patients and 10 asymptomatic subjects using a motion analysis system.
Findings: Mean total forward bending for LBP group was more than asymptomatic subjects. There were no group differences for lumbar to hip ratio for each 25 percent of movement.
Results of this study showed that people with LBP (active extension pattern) display different patterns of posture and movement.