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Analyzing Moment Arm Profiles in a Full-Muscle Rat Hindlimb Model†

Understanding the kinematics of a hindlimb model is a fundamental aspect of modeling coordinated locomotion. This work describes the development process of a rat hindlimb model that contains a complete muscular system and incorporates physiological walking data to examine realistic muscle movements...

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Detalles Bibliográficos
Autores principales: Young, Fletcher, Rode, Christian, Hunt, Alex, Quinn, Roger
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6477668/
https://www.ncbi.nlm.nih.gov/pubmed/31105196
http://dx.doi.org/10.3390/biomimetics4010010
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author Young, Fletcher
Rode, Christian
Hunt, Alex
Quinn, Roger
author_facet Young, Fletcher
Rode, Christian
Hunt, Alex
Quinn, Roger
author_sort Young, Fletcher
collection PubMed
description Understanding the kinematics of a hindlimb model is a fundamental aspect of modeling coordinated locomotion. This work describes the development process of a rat hindlimb model that contains a complete muscular system and incorporates physiological walking data to examine realistic muscle movements during a step cycle. Moment arm profiles for selected muscles are analyzed and presented as the first steps to calculating torque generation at hindlimb joints. A technique for calculating muscle moment arms from muscle attachment points in a three-dimensional (3D) space has been established. This model accounts for the configuration of adjacent joints, a critical aspect of biarticular moment arm analysis that must be considered when calculating joint torque. Moment arm profiles from isolated muscle motions are compared to two existing models. The dependence of biarticular muscle’s moment arms on the configuration of the adjacent joint is a critical aspect of moment arm analysis that must be considered when calculating joint torque. The variability in moment arm profiles suggests changes in muscle function during a step.
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spelling pubmed-64776682019-05-16 Analyzing Moment Arm Profiles in a Full-Muscle Rat Hindlimb Model† Young, Fletcher Rode, Christian Hunt, Alex Quinn, Roger Biomimetics (Basel) Article Understanding the kinematics of a hindlimb model is a fundamental aspect of modeling coordinated locomotion. This work describes the development process of a rat hindlimb model that contains a complete muscular system and incorporates physiological walking data to examine realistic muscle movements during a step cycle. Moment arm profiles for selected muscles are analyzed and presented as the first steps to calculating torque generation at hindlimb joints. A technique for calculating muscle moment arms from muscle attachment points in a three-dimensional (3D) space has been established. This model accounts for the configuration of adjacent joints, a critical aspect of biarticular moment arm analysis that must be considered when calculating joint torque. Moment arm profiles from isolated muscle motions are compared to two existing models. The dependence of biarticular muscle’s moment arms on the configuration of the adjacent joint is a critical aspect of moment arm analysis that must be considered when calculating joint torque. The variability in moment arm profiles suggests changes in muscle function during a step. MDPI 2019-01-25 /pmc/articles/PMC6477668/ /pubmed/31105196 http://dx.doi.org/10.3390/biomimetics4010010 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Young, Fletcher
Rode, Christian
Hunt, Alex
Quinn, Roger
Analyzing Moment Arm Profiles in a Full-Muscle Rat Hindlimb Model†
title Analyzing Moment Arm Profiles in a Full-Muscle Rat Hindlimb Model†
title_full Analyzing Moment Arm Profiles in a Full-Muscle Rat Hindlimb Model†
title_fullStr Analyzing Moment Arm Profiles in a Full-Muscle Rat Hindlimb Model†
title_full_unstemmed Analyzing Moment Arm Profiles in a Full-Muscle Rat Hindlimb Model†
title_short Analyzing Moment Arm Profiles in a Full-Muscle Rat Hindlimb Model†
title_sort analyzing moment arm profiles in a full-muscle rat hindlimb model†
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6477668/
https://www.ncbi.nlm.nih.gov/pubmed/31105196
http://dx.doi.org/10.3390/biomimetics4010010
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