Collings, AJ, Eberhard, EA, Basu, C and Richards, CT (2022) Functional Analysis of Anuran Pelvic and Thigh Anatomy Using Musculoskeletal Modelling of Phlyctimantis maculatus. Frontiers in Bioengineering and Biotechnology, 10. ISSN 2296-4185

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<jats:p>Using their abundant musculature, frogs are able to exhibit outstanding behavioural versatility. However, understanding the dynamic motion of their 30 + hindlimb muscles, with multi-joint action, and curved pathways, is challenging. This is particularly true in walking, a relatively understudied, but complex frog gait. Building on prior musculoskeletal modelling work we construct and analyse a 3D musculoskeletal model of the spine, pelvis, and hindlimb of <jats:italic>Phlyctimantis maculatus</jats:italic> (previously known as <jats:italic>Kassina maculata</jats:italic>) to simulate the natural motion of muscle pathways as joints rotate during locomotion. Combining experimental kinematics and DICE-CT scan data we use several simulations conducted in MuJoCo to decouple femur and pelvic motions, generating new insights into the functional mechanics of walking in frogs. Outputs demonstrate pelvic lateral rotation about the iliosacral joint influences moment arm magnitude in the majority of hindlimb muscles. The extent of pelvic influence depends on femoral angle which changes muscle function in some instances. The workflow presented here can be used to help experimentalists predict which muscles to probe with <jats:italic>in vivo</jats:italic> techniques towards a better understanding of how anuran musculoskeletal mechanics enable multiple behaviours.</jats:p>

Item Type: Article
Additional Information: Copyright © 2022 Collings, Eberhard, Basu and Richards. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
Uncontrolled Keywords: Anuran, Pelvis, Musculoskeletal modelling, Moment arm, Walking locomotion, Pelvic lateral rotation, MuJoCo
Subjects: Q Science > Q Science (General)
Q Science > QM Human anatomy
Divisions: Faculty of Natural Sciences > School of Chemical and Physical Sciences
Depositing User: Symplectic
Date Deposited: 20 Apr 2022 10:29
Last Modified: 20 Apr 2022 10:29

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