Oregon Spinal (Lumbar) Range of Motion is a series of tests used to assess the mobility of the lumbar spine. The tests measure the range of motion of the spine in all directions: flexion, extension, lateral flexion, and rotation. It is used to assess spinal biomechanics, identify spinal dysfunction, and assess treatment interventions. There are two types of Oregon Spinal (Lumbar) Range of Motion tests: static and dynamic. The static test measures the range of motion without involving any active movement. The dynamic test measures the range of motion while the patient actively moves the spine. Both tests are useful for evaluating spinal mobility and are often used together to provide a comprehensive assessment.