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A Forward Dynamic Modelling Investigation of Cause-and-Effect Relationships in Single Support Phase of Human Walking
Joint Authors
Howard, David
McGrath, Michael
Baker, Richard
Source
Computational and Mathematical Methods in Medicine
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-06-14
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Mathematical gait models often fall into one of two categories: simple and complex.
There is a large leap in complexity between model types, meaning the effects of individual gait mechanisms get overlooked.
This study investigated the cause-and-effect relationships between gait mechanisms and resulting kinematics and kinetics, using a sequence of mathematical models of increasing complexity.
The focus was on sagittal plane and single support only.
Starting with an inverted pendulum (IP), extended to include a HAT (head-arms-trunk) segment and an actuated hip moment, further complexities were added one-by-one.
These were a knee joint, an ankle joint with a static foot, heel rise, and finally a swing leg.
The presence of a knee joint and an ankle moment (during foot flat) were shown to largely influence the initial peak in the vertical GRF curve.
The second peak in this curve was achieved through a combination of heel rise and the presence of a swing leg.
Heel rise was also shown to reduce errors in the horizontal GRF prediction in the second half of single support.
The swing leg is important for centre-of-mass (CM) deceleration in late single support.
These findings provide evidence for the specific effects of each gait mechanism.
American Psychological Association (APA)
McGrath, Michael& Howard, David& Baker, Richard. 2015. A Forward Dynamic Modelling Investigation of Cause-and-Effect Relationships in Single Support Phase of Human Walking. Computational and Mathematical Methods in Medicine،Vol. 2015, no. 2015, pp.1-9.
https://search.emarefa.net/detail/BIM-1057882
Modern Language Association (MLA)
McGrath, Michael…[et al.]. A Forward Dynamic Modelling Investigation of Cause-and-Effect Relationships in Single Support Phase of Human Walking. Computational and Mathematical Methods in Medicine No. 2015 (2015), pp.1-9.
https://search.emarefa.net/detail/BIM-1057882
American Medical Association (AMA)
McGrath, Michael& Howard, David& Baker, Richard. A Forward Dynamic Modelling Investigation of Cause-and-Effect Relationships in Single Support Phase of Human Walking. Computational and Mathematical Methods in Medicine. 2015. Vol. 2015, no. 2015, pp.1-9.
https://search.emarefa.net/detail/BIM-1057882
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1057882