A system for kinematic analysis of lumbar spine motion

Active lumbar spine movement was acquired and analyzed using a computer controlled data acquisition and analysis system. A 3Space Isotrak was used to record rotational displacement and velocity in three dimensions. The Isotrak was interfaced to a Macintosh computer running LabVIEW software to display real-time kinematic parameters. Results from Ave subjects showed ranges of motion in the sagittal plane to be in accordance with previous literature reports. This paper is one of the first to analyze the parameter of velocity as a component of lumbar spine motion.