Sun, L.W., Lee, R.Y.W., Lu, W. and Luk, K.D.K. (2004) Modelling and simulation of the intervertebral movements of the lumbar spine using an inverse kinematic algorithm Medical & Biological Engineering & Computing, 42 (6). pp. 740-746. ISSN 1741-0444Full text not available from this repository.
An inverse kinematic model is presented that was employed to determine the optimum intervertebral joint configuration for a given forward-bending posture of the human trunk. The lumbar spine was modelled as an open-end, kinematic chain of five links that represented the five vertebrae (L1-L5). An optimisation equation with physiological constraints was employed to determine the intervertebral joint configuration. Intervertebral movements were measured from sagittal X-ray films of 22 subjects. The mean difference between the X-ray measurements of intervertebral rotations in the sagittal plane and the values predicted by the kinematic model was less than 1.6 . Pearson product-moment correlation R was used to measure the relationship between the measured and predicted values. The R-values were found to be high, ranging from 0.83 to 0.97, for prediction of intervertebral rotation, but poor for intervertebral translation (H = 0.08-0.67). It is concluded that the inverse kinematic model will be clinically useful for predicting intervertebral rotation when X-ray or invasive measurements are undesirable. It will also be useful to biomechanical modelling, which requires accurate kinematic information as model input data.
|Item Type:||Journal article|
|Uncontrolled Keywords:||Optimisation; Intervertebral motion; Lumbar spine; Inverse kinematics|
|Subjects:||B000 Health Professions|
|DOI (a stable link to the resource):||10.1007/BF02345206|
|Faculties:||Faculty of Health and Social Sciences > School of Health Professions|
|Depositing User:||editor health|
|Date Deposited:||03 Sep 2007|
|Last Modified:||06 Feb 2014 14:21|
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