Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/32619
Title: Measurement of lumbar spine loads and motions during rotational mobilization
Authors: Tsung, BYS
Evans, J
Tong, P
Lee, RYW
Keywords: Biomechanics
Lumbar Vertebrae
Manipulation
Rotation
Spinal
Issue Date: 2005
Publisher: Mosby, Inc
Source: Journal of manipulative and physiological therapeutics, 2005, v. 28, no. 4, p. 238-244 How to cite?
Journal: Journal of Manipulative and Physiological Therapeutics 
Abstract: Objectives: To measure the loads acting at the lumbar spine and the resulting motions during rotational mobilization. Methods: Twenty healthy subjects were subjected to right rotational mobilization of different grades. The magnitude and frequency of mobilization loads were decided by an experienced manipulative therapist to be appropriate for each mobilization grade. Subjects were positioned on a specially constructed plinth capable of measuring forces and moments about 3 axes. The 3-dimensional movements of the lumbar spine were captured by an electromagnetic tracking device. Results: In the starting positions, the lumbar spines were found to be flexed, axially rotated to the right, and laterally bent to the left. As the mobilization grade increased, the spine was axially rotated further into the range. Rotational mobilization was found to induce oscillatory moments and movements of the spine in all 3 anatomical planes. The twisting moment and movement were generally accompanied by lateral bending moment and movement in the opposite direction. The mean amplitudes of the moment and movement oscillations were small and found to be largest for grade III mobilization. Conclusion: The mechanical effects of rotational mobilization are not restricted to axial rotation of the spine as the name may have suggested. Rotational mobilization may be able to restore lost movements of the lumbar spine in any of the 3 planes. The method developed in this study showed good reliability and may be considered to assess treatment outcome and changes in spinal stiffness after therapy.
URI: http://hdl.handle.net/10397/32619
ISSN: 0161-4754
DOI: 10.1016/j.jmpt.2005.03.014
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 Oct 4, 2017

WEB OF SCIENCETM
Citations

10
Last Week
0
Last month
0
Citations as of Oct 13, 2017

Page view(s)

47
Last Week
4
Last month
Checked on Oct 16, 2017

Google ScholarTM

Check

Altmetric



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