Differences in kinematics of the lumbar spine and lower extremities between people with and without low back pain during the down phase of a pick up task, an observational study.

Background: Limited research exists on lumbar spine and lower extremity movement during functional tasks in people with and without low back pain (LBP).

Objective: To determine differences in lumbar spine and lower extremity kinematics in people with and without LBP during the down phase of a pick up task.

Design: Cross-sectional, observational study.