Standardized Provocation of Lumbar Spine Mobility: Three Methods Compared by Radiostereometric Analysis

Abstract

The intervertebral mobility response provided in the lumbar spine when changing position from supine to sitting is more pronounced than both to standing and to standing with a 20 kg load. By the supine to sitting provocation, mean lumbar mobility is increased, and mobility can be revealed in some cases being stable in the other 2 situations. Combined with RSA, the method brings a refined possibility for studying lumbar spine kinematics.