An Optimization-Based Simultaneous Approach to the Determination of Muscular, Ligamentous, and Joint Contact Forces Provides Insight into Musculoligamentous Interaction

Cleather, Daniel J. and Bull, Anthony M. J. (2011) An Optimization-Based Simultaneous Approach to the Determination of Muscular, Ligamentous, and Joint Contact Forces Provides Insight into Musculoligamentous Interaction. Annals of Biomedical Engineering, 39 (7). pp. 1925-1934. ISSN 0090-6964

[img]
Preview
Text
cleather_Optimization-Based_Simultaneous_Approach.pdf - Accepted Version

Download (417kB) | Preview
Official URL: http://dx.doi.org/10.1007/s10439-011-0303-8

Abstract

Typical inverse dynamics approaches to the calculation of muscle, ligament, and joint contact forces are based on a step-wise solution of the equations of motion. This approach is therefore limited in its ability to provide insight as to the muscular, ligamentous, and articular interactions that create joint stability. In this study, a new musculoskeletal model of the lower limb is described, in which the equations of motion describing the force and moment equilibrium at the joints of the lower limb are solved simultaneously using optimization techniques. The new model was employed to analyze vertical jumping using a variety of different optimization cost functions and the results were compared to more traditional approaches. The new model was able to find a solution with lower muscular force upper bounds due to the ability of the ligaments to contribute to moment equilibrium at the ankle and knee joints. Equally, the new model produced lower joint contact forces than traditional approaches for cases which also included a consideration as to ligament or joint contact forces within the cost function. This study demonstrates the possibility of solving the inverse dynamic equations of motion simultaneously using contemporary technology, and further suggests that this might be important due to the complementary function of the muscles and ligaments in creating joint stability.

Item Type: Journal Article
Uncontrolled Keywords: REF2014
Subjects: 600 Technology > 611 Human anatomy, cytology & histology
600 Technology > 612 Human physiology
School/Department: School of Sport, Health and Applied Science
Depositing User: Jonathan Lucas
Date Deposited: 17 May 2012 09:01
Last Modified: 10 Dec 2013 11:59
URI: http://research.stmarys.ac.uk/id/eprint/124

Altmetrics

If Altmetric statistics are available for this item, they will be visible below.

Actions (login required)

Edit Item Edit Item
Downloads per month over past year