Functional electrical stimulation (FES) has the capacity to regenerate motion for individuals with spinal cord injuries. However, it is not straightforward to determine the stimulation parameters to generate a coordinated movement. Musculoskeletal models can provide a noninvasive simulation environment to estimate muscle force and activation timing sequences for a variety of tasks. Therefore, the purpose of this study was to develop a musculoskeletal model of the feline hindlimb for simulations to determine stimulation parameters for intrafascicular multielectrode stimulation (a method of FES). Additionally, we aimed to explore the differences in modeling neuromuscular compartments compared with representing these muscles as a single line of action. When comparing the modeled neuromuscular compartments of biceps femoris, sartorius, and semimembranosus to representations of these muscles as a single line of action, we observed that modeling the neuromuscular compartments of these three muscles generated different force and moment generating capacities when compared with single muscle representations. Differences as large as ( in biceps femoris) were computed between the summed moments of the neuromuscular compartments and the single muscle representations. Therefore, modeling neuromuscular compartments may be necessary to represent physiologically reasonable force and moment generating capacities of the feline hindlimb.
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e-mail: lisa.macfadden@utah.edu
e-mail: nick.brown@ausport.gov.au
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August 2010
Research Papers
The Influence of Modeling Separate Neuromuscular Compartments on the Force and Moment Generating Capacities of Muscles of the Feline Hindlimb
Lisa N. MacFadden,
Lisa N. MacFadden
Department of Bioengineering,
e-mail: lisa.macfadden@utah.edu
University of Utah
, Salt Lake City, UT 84112
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Nicholas A. T. Brown
Nicholas A. T. Brown
Department of Bioengineering,
e-mail: nick.brown@ausport.gov.au
University of Utah
, Salt Lake City, UT 84112; Biomechanics and Performance Analysis, Australian Institute of Sport
, Leverrier Street, Bruce ACT 2617, Canberra, Australia
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Lisa N. MacFadden
Department of Bioengineering,
University of Utah
, Salt Lake City, UT 84112e-mail: lisa.macfadden@utah.edu
Nicholas A. T. Brown
Department of Bioengineering,
University of Utah
, Salt Lake City, UT 84112; Biomechanics and Performance Analysis, Australian Institute of Sport
, Leverrier Street, Bruce ACT 2617, Canberra, Australiae-mail: nick.brown@ausport.gov.au
J Biomech Eng. Aug 2010, 132(8): 081003 (10 pages)
Published Online: June 15, 2010
Article history
Received:
July 23, 2009
Revised:
March 31, 2010
Posted:
April 28, 2010
Published:
June 15, 2010
Online:
June 15, 2010
Citation
MacFadden, L. N., and Brown, N. A. T. (June 15, 2010). "The Influence of Modeling Separate Neuromuscular Compartments on the Force and Moment Generating Capacities of Muscles of the Feline Hindlimb." ASME. J Biomech Eng. August 2010; 132(8): 081003. https://doi.org/10.1115/1.4001680
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