Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/26085
Title: Modelling and simulation of the intervertebral movements of the lumbar spine using an inverse kinematic algorithm
Authors: Sun, LW
Lee, RYW
Lu, W
Luk, KDK
Keywords: Intervertebral motion
Inverse kinematics
Lumbar spine
Optimisation
Issue Date: 2004
Publisher: Springer
Source: Medical and biological engineering and computing, 2004, v. 42, no. 6, p. 740-746 How to cite?
Journal: Medical and biological engineering and computing 
Abstract: 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 (R = 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.
URI: http://hdl.handle.net/10397/26085
ISSN: 0140-0118
EISSN: 1741-0444
DOI: 10.1007/BF02345206
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

SCOPUSTM   
Citations

10
Last Week
0
Last month
0
Citations as of Aug 20, 2017

WEB OF SCIENCETM
Citations

7
Last Week
0
Last month
0
Citations as of Aug 20, 2017

Page view(s)

37
Last Week
1
Last month
Checked on Aug 21, 2017

Google ScholarTM

Check

Altmetric



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.