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Interconnecting measured data of in vivo kinematics and spinal functional unit in vitro

Presently, the biomechanics community is closely focused on scientific research of a phenomenon called the low back pain. The sphere of interest has turned to the whole spinal mechanism in order to develop a satisfactory solution for many people suffering from low back pain. This work concerns the possibility of interconnecting measured data of in vivo kinematics and spinal functional unit in vitro with a closer analysis of behaviour of the instantaneous axis of rotation (IAR; Holub et al. 2008). It was empirically found out that there is a very close relation between the IAR’s location and degenerative changes or the IAR and the consequences of phenomenon called whiplash (Grip et al. 2008). Irregularity of the IAR’s position has been associated with pain in a majority of cases.