Parameter estimation and experimental design for Hill-type muscles: Impulses from optimization-based modeling

Rockenfeller, Robert; Herold, Johannes L.; Götz, Thomas

doi:10.1016/j.mbs.2020.108432

Cited by 7 publications

(3 citation statements)

References 33 publications

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“…While the authors are thus confident that the chosen EHTM parameters are valid, no efforts have been undertaken to see if a retuning of the pre-set * MAT_MUSCLE material properties could have improved the observed model behaviour. In addition, the parameter tuning method used in the presented work (Wochner et al 2022 ; Nölle et al 2022 ) is one of the possible methods to achieve a sensible parameter set, from many approaches available (Heinen et al 2016 ; Rockenfeller et al 2020 ) Despite this, the inherent mechanical properties of the four element the EHTM make it a more numerically stable (Yeo et al 2023 ) and better represent the eccentric force-velocity relation of the biological muscle, when compared to three element Hill-type materials such as * MAT_MUSCLE (Günther et al 2007 ; Haeufle et al 2014 ).…”

Section: Discussionmentioning

confidence: 99%

Development and verification of a physiologically motivated internal controller for the open-source extended Hill-type muscle model in LS-DYNA

Martynenko,

Kempter,

Kleinbach

et al. 2023

Biomech Model Mechanobiol

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Nowadays, active human body models are becoming essential tools for the development of integrated occupant safety systems. However, their broad application in industry and research is limited due to the complexity of incorporated muscle controllers, the long simulation runtime, and the non-regular use of physiological motor control approaches. The purpose of this study is to address the challenges in all indicated directions by implementing a muscle controller with several physiologically inspired control strategies into an open-source extended Hill-type muscle model formulated as LS-DYNA user-defined umat41 subroutine written in the Fortran programming language. This results in increased usability, runtime performance and physiological accuracy compared to the standard muscle material existing in LS-DYNA. The proposed controller code is verified with extensive experimental data that include findings for arm muscles, the cervical spine region, and the whole body. Selected verification experiments cover three different muscle activation situations: (1) passive state, (2) open-loop and closed-loop muscle activation, and (3) reflexive behaviour. Two whole body finite element models, the 50th percentile female VIVA OpenHBM and the 50th percentile male THUMS v5, are used for simulations, complemented by the simplified arm model extracted from the 50th percentile male THUMS v3. The obtained results are evaluated additionally with the CORrelation and Analysis methodology and the mean squared error method, showing good to excellent biofidelity and sufficient agreement with the experimental data. It was shown additionally how the integrated controller allows simplified mimicking of the movements for similar musculoskeletal models using the parameters transfer method. Furthermore, the Hill-type muscle model presented in this paper shows better kinematic behaviour even in the passive case compared to the existing one in LS-DYNA due to its improved damping and elastic properties. These findings provide a solid evidence base motivating the application of the enhanced muscle material with the internal controller in future studies with Active Human Body Models under different loading conditions.

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Section: Discussionmentioning

confidence: 99%

Development and verification of a physiologically motivated internal controller for the open-source extended Hill-type muscle model in LS-DYNA

Martynenko,

Kempter,

Kleinbach

et al. 2023

Biomech Model Mechanobiol

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“…Although this model provides a more accurate depiction of muscle morphology, it is mainly used for studying muscle strength in occlusal states and has not yet taken into account the dynamic changes in muscle force vectors. Hill type muscles can accurately describe the right angled hyperbolic relationship between load and contraction speed when muscles contract from live length [20] . Therefore, using Hill type muscles that match the original muscle attachment for muscle force loading can not only conveniently calculate the instantaneous direction of the muscle force vector, but also simulate the force length relationship and force velocity relationship during muscle contraction more realistically.…”

Section: The Loading Methods Of Dynamic Loadsmentioning

confidence: 99%

Research progress on dynamic three-dimensional finite element model construction of temporomandibular joint

2023

IJFM

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The three-dimensional finite element method has become the main method for studying the biomechanics of the temporomandibular joint due to its precise and non-invasive characteristics. However, the geometric similarity and mechanical simulation of different modeling methods differ, and there are significant differences in their authenticity. The principle is to use modern computer technology to numerically convert the mechanical properties of objects, establish an intuitive, time-saving, and conclusive research model, analyze the stress-strain situation of different parts, and then carry out mechanical theory research. This article will focus on the construction of geometric models of the temporomandibular joint, material characteristics and contact relationships, as well as the loading methods of dynamic loads and the establishment methods of dynamic three-dimensional finite element models of the temporomandibular joint.

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“…Advancing the field of Hill-type modelling (Bahler, 1968;Hatze, 1977;Hatze, 1978;Giat, Y. et al, 1993;Durfee & Palmer, 1994;Van Zandwijk et al, 1996;Nussbaum & Chaffin, 1998;Curtin et al, 1998;Shue & Crago, 1998;Brown et al, 1999;Cheng et al, 2000;Ettema & Meijer, 2000;Lloyd & Besier, 2003;Thelen, 2003;Günther et al, 2007;Mavritsaki et al, 2007;Song et al, 2008;Menegaldo & Oliveira, 2009;Tsianos et al, 2011;Maceri et al, 2012;Blümel et al, 2012;Mörl et al, 2012;Callahan et al, 2013;Millard et al, 2013;Lee et al, 2013;Elias et al, 2014;Kim et al, 2015;Hamouda et al, 2016;Dick et al, 2017;Kim & Kim, 2018;Siebert et al, 2018;Ross, Nigam et al, 2018;Rockenfeller, R. et al, 2020;Hussein et al, 2022) Developing methods for including Hill-type models in neuromusculoskeletal simulations (Wyss & Pollak, 1984;Pierrynowski & Morrison, 1985;Otten, 1987;Winters, J. M., 1995;Dorgan & O'Malley, 1997;Kistemaker et...…”

Section: Topic Of the Study Referencesmentioning

confidence: 99%

Hill-type models of skeletal muscle and neuromuscular actuators: a systematic review

Caillet

Phillips

Carty

et al. 2022

Preprint

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Backed by a century of research and development, Hill-type muscle-tendon models are extensively used for countless applications. Lacking recent reviews, the field of Hill-type modelling is however dense and hard-to-explore, with detrimental consequences on knowledge transmission, inter-study consistency, and innovation. Here we present the first systematic review of the field of Hill-type muscle-tendon modelling. It aims to clarify the literature by detailing its contents and proposing updated terminology and definitions, and discussing the state-of-the-art by identifying the latest advances, current gaps, and potential improvements in modelling muscle properties. To achieve this aim, fifty-five criteria-abiding studies were extracted using a systematic search and their Hill-type models assessed according to a completeness evaluation, which identified the modelled muscle-tendon properties, and a modelling evaluation, which considered the level of validation and reusability of the model, and attention given to its modelling strategy and calibration. It is concluded that most models (1) do not significantly advance the dated gold standards in muscle modelling and do not build upon more recent advances, (2) overlook the importance of parameter identification and tuning, (3) are not strongly validated, and (4) are not reusable in other studies. Besides providing a convenient tool supported by extensive supplementary material for understanding the literature, the results of this review open a discussion on the necessity for global recommendations in Hill-type modelling and more frequent reviews to optimize inter-study consistency, knowledge transmission and model reusability.

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Parameter estimation and experimental design for Hill-type muscles: Impulses from optimization-based modeling

Cited by 7 publications

References 33 publications

Development and verification of a physiologically motivated internal controller for the open-source extended Hill-type muscle model in LS-DYNA

Development and verification of a physiologically motivated internal controller for the open-source extended Hill-type muscle model in LS-DYNA

Research progress on dynamic three-dimensional finite element model construction of temporomandibular joint

Hill-type models of skeletal muscle and neuromuscular actuators: a systematic review

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