Kinematics of the lumbar spine in elderly subjects with decreased bone mineral density

Heather Ting Ma, James F. Griffith, Yang, Z, Anthony Wai Leung Kwok, Ping Chung Leung and Raymond Y. W. Lee (2009) Kinematics of the lumbar spine in elderly subjects with decreased bone mineral density. Medical & Biological Engineering & Computing, 47 7: 783-789. doi:10.1007/s11517-009-0493-5

Author Heather Ting Ma
James F. Griffith
Yang, Z
Anthony Wai Leung Kwok
Ping Chung Leung
Raymond Y. W. Lee
Title Kinematics of the lumbar spine in elderly subjects with decreased bone mineral density
Journal name Medical & Biological Engineering & Computing   Check publisher's open access policy
ISSN 0140-0118
Publication date 2009-07-01
Year available 2009
Sub-type Article (original research)
DOI 10.1007/s11517-009-0493-5
Open Access Status
Volume 47
Issue 7
Start page 783
End page 789
Total pages 7
Editor Jos A Spaan
Place of publication Germany
Publisher Springer
Language eng
Subject C1
110601 Biomechanics
920499 Public Health (excl. Specific Population Health) not elsewhere classified
Abstract Lumbar spine kinematics was studied in subjects with normal bone mineral density, osteopenia and osteoporosis to determine the effect of bone mineral density and morphology on the flexion-extension movement patterns of the lumbar spine. Lateral radiographs and skin-mounted electromagnetic motion tracking sensors were employed to study lumbar spine kinematics using a Bayesian Belief Network model. The predicted angular displacement of the vertebrae had a high correlation (r = 0.91, p < 0.001) with the actual movements. The overall mean error was -0.51 degrees +/- 3.11 degrees. Intervertebral angular displacement and velocity consistently increased from L1/L2 to L5/S1. Differences were observed in the movement pattern between normal subjects and those with decreased bone density. In normal subjects, vertebral angular acceleration consistently decreased from the upper to the lower vertebrae but the same consistent predictable pattern was not observed in the subjects with decreased bone mineral density. It is possible that these changes in kinematic behaviours are related to morphological changes as well as altered neuromuscular functions.
Keyword Spinal kinematics
Movement Patterns
Morphological characteristics
bone mineral density
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2010 Higher Education Research Data Collection
Centre for Advanced Imaging Publications
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Citation counts: TR Web of Science Citation Count  Cited 2 times in Thomson Reuters Web of Science Article | Citations
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Created: Thu, 03 Sep 2009, 18:04:15 EST by Mr Andrew Martlew on behalf of Centre For Magnetic Resonance