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Multibody computational biomechanical model of the upper body
Descriptive
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Title
Multibody computational biomechanical model of the upper body
Name
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Dubowsky
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Sarah Rebecca
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Sarah Rebecca Dubowsky
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author
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Langrana
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Noshir
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Advisory Committee
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Noshir A Langrana
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chair
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Shoane
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George
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Advisory Committee
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George K Shoane
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internal member
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Craelius
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William
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Advisory Committee
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William Craelius
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internal member
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Sisto
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Sue
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Advisory Committee
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Sue Ann Sisto
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outside member
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Rutgers University
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degree grantor
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Graduate School - New Brunswick
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school
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Text
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theses
OriginInfo
DateCreated
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2008
DateOther
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2008-05
Language
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English
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electronic
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application/pdf
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text/xml
Extent
xii, 145 pages
Abstract
In the US alone, more than 10,000 spinal cord injuries (SCI) are reported each year. Those who use a manual wheelchair (WC) depend upon their upper limbs to provide a means of locomotion during completion of their activities of daily living. As a result of greater than normal usage of the upper limbs, shoulder pain and pathology is common among manual wheelchair users (MWUs). The use of a patient-specific computational biomechanical model of WC propulsion may help guide rehabilitation that may improve clinical instruction and patient performance. The focus of the work will be two-fold: 1.) experimentally investigate the simultaneous kinematics, kinetics, and electromyography (EMG) throughout WC propulsion, and 2.) computationally, use these data for the creation and validation of a computational model examining resulting shoulder joint forces.
1.) Experimentally: An integrated data collection and analysis of kinematics, kinetics, and EMG data allow for the comparison of differences in WC propulsion between able-bodied and persons with paraplegia. Resulting muscle activity differences may be responsible for the observed kinematic and kinetic disparities between the two groups. The high incidence of shoulder pain in MWUs may be the result of such differences.
2.) Computational: When prescribing a WC, the use of a computational model may aide in determining an axle placement in which shoulder joint forces are at a minimum. Created from the information collected above, a patient-specific model was used to calculate the magnitude of shoulder joint forces throughout propulsion. In addition, results from a parametric study, determine the effect of axle placement on the magnitude of these forces. The overall goal is to find an ideal axle placement that minimizes the magnitude of these forces throughout propulsion.
In summary, the current patient-specific computational model can serve as a rehabilitative guide in WC prescription. With its ability to identify varying magnitudes of compressive loads in different axle positions, clinicians can target the resulting axle positions that minimize shoulder joint forces as an ideal set-up when prescribing a WC. In turn, minimizing joint forces from injury onset may prolong a MWU's pain-free propulsion and quality of life.
1.) Experimentally: An integrated data collection and analysis of kinematics, kinetics, and EMG data allow for the comparison of differences in WC propulsion between able-bodied and persons with paraplegia. Resulting muscle activity differences may be responsible for the observed kinematic and kinetic disparities between the two groups. The high incidence of shoulder pain in MWUs may be the result of such differences.
2.) Computational: When prescribing a WC, the use of a computational model may aide in determining an axle placement in which shoulder joint forces are at a minimum. Created from the information collected above, a patient-specific model was used to calculate the magnitude of shoulder joint forces throughout propulsion. In addition, results from a parametric study, determine the effect of axle placement on the magnitude of these forces. The overall goal is to find an ideal axle placement that minimizes the magnitude of these forces throughout propulsion.
In summary, the current patient-specific computational model can serve as a rehabilitative guide in WC prescription. With its ability to identify varying magnitudes of compressive loads in different axle positions, clinicians can target the resulting axle positions that minimize shoulder joint forces as an ideal set-up when prescribing a WC. In turn, minimizing joint forces from injury onset may prolong a MWU's pain-free propulsion and quality of life.
Note
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Ph.D.
Note
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Includes bibliographical references (p. 116-123).
Subject
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Topic
Biomedical Engineering
Subject
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Topic
Shoulder joint--Mechanical properties
Subject
(ID = SUBJ3);
(authority = ETD-LCSH)
Topic
Wheelchairs--Physiological aspects
Subject
(ID = SUBJ4);
(authority = ETD-LCSH)
Topic
Wheelchairs--Design and construction
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Title
Graduate School - New Brunswick Electronic Theses and Dissertations
Identifier
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rucore19991600001
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http://hdl.rutgers.edu/1782.2/rucore10001600001.ETD.17303
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ETD_878
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Identifier
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doi:10.7282/T3F76CXG
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ETD doctoral
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Rights
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The author owns the copyright to this work.
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Copyright protected
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Open
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Sarah Dubowsky
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Copyright holder
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Rutgers University. Graduate School - New Brunswick
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Non-exclusive ETD license
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Author Agreement License
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I hereby grant to the Rutgers University Libraries and to my school the non-exclusive right to archive, reproduce and distribute my thesis or dissertation, in whole or in part, and/or my abstract, in whole or in part, in and from an electronic format, subject to the release date subsequently stipulated in this submittal form and approved by my school. I represent and stipulate that the thesis or dissertation and its abstract are my original work, that they do not infringe or violate any rights of others, and that I make these grants as the sole owner of the rights to my thesis or dissertation and its abstract. I represent that I have obtained written permissions, when necessary, from the owner(s) of each third party copyrighted matter to be included in my thesis or dissertation and will supply copies of such upon request by my school. I acknowledge that RU ETD and my school will not distribute my thesis or dissertation or its abstract if, in their reasonable judgment, they believe all such rights have not been secured. I acknowledge that I retain ownership rights to the copyright of my work. I also retain the right to use all or part of this thesis or dissertation in future works, such as articles or books.
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