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Permanent link (DOI): https://doi.org/10.7939/R3MH5H

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The effect of the duration and amplitude of spinal manipulation therapy on the spinal stiffness of a feline model Open Access

Descriptions

Other title
Subject/Keyword
Manipulation
Elastic Modulus
Spine
Stiffness
Manual Therapy
Reproducibility of Results
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Vaillant, Michele
Supervisor and department
Kawchuk, Gregory (Physical Therapy)
Examining committee member and department
Mushahwar, Vivian (Biomedical Engineering)
Parent, Eric (Physical Therapy)
Department
Rehabilitation Medicine
Specialization

Date accepted
2010-09-30T17:24:21Z
Graduation date
2010-11
Degree
Master of Science in Rehabilitation Science
Degree level
Master's
Abstract
Introduction: The purpose of this study was to determine the effect of spinal manipulation therapy (SMT) duration and amplitude on spinal stiffness. Methods: Simulated SMTs were performed at the L6 spinous process in twenty-two felines. SMTs ranging from 25 to 250 ms duration were performed. Groups 1 and 2 received maximal displacements of 1.0mm to 3.0mm. Groups 3 and 4 received maximal loads of 25% to 85% body weight. Local stiffness was quantified by applying an indentation to the vertebra. Results: Repeated SMTs caused minimal changes in stiffness. The interaction effect of duration X displacement in Groups 1 and 2, and the effect of duration in Group 3 were significant. Conclusion: Repeated SMTs cause minimal changes in stiffness thought to be due to a viscoelastic response. Some of the changes following select SMT conditions may be the result of an interaction effect between SMT duration and amplitude. No specific threshold condition was identified as causing a greater stiffness change.
Language
English
DOI
doi:10.7939/R3MH5H
Rights
License granted by Michele Vaillant (mvaillan@ualberta.ca) on 2010-09-29 (GMT): Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of the above terms. The author reserves all other publication and other rights in association with the copyright in the thesis, and except as herein provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
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