A reduced muscle model and planar musculoskeletal model fit for the simulation of whole-body movements

• Verfasst von: Millard, Matthew [VerfasserIn]
• Verfasst von: Emonds, Anna Lena [VerfasserIn]
• Verfasst von: Harant, Monika [VerfasserIn]
• Verfasst von: Mombaur, Katja [VerfasserIn]
• Titel: A reduced muscle model and planar musculoskeletal model fit for the simulation of whole-body movements
• Verf.angabe: Matthew Millard, Anna Lena Emonds, Monika Harant, Katja Mombaur
• E-Jahr: 2019
• Jahr: 10 April 2019
• Umfang: 10 S.
• Teil: volume:89
• Teil: year:2019
• Teil: pages:11-20
• Teil: extent:10
• Fussnoten: Gesehen am 11.07.2019
• Titel Quelle: Enthalten in: Journal of biomechanics
• Ort Quelle: Amsterdam [u.a.] : Elsevier Science, 1968
• Jahr Quelle: 2019
• Band/Heft Quelle: 89(2019), Seite 11-20
• ISSN Quelle: 1873-2380
• DOI: doi:10.1016/j.jbiomech.2019.04.004
• Datenträger: Online-Ressource
• Sprache: eng
• Sach-SW: Muscle
• Sach-SW: Muscle-fitting
• Sach-SW: Muscle-torque-generator
• Sach-SW: Optimization
• Sach-SW: Whole-body movement
• K10plus-PPN: 1669009785

Abstract

Musculoskeletal models are made to reflect the capacities of the human body in general, and often a specific subject in particular. It remains challenging to both model the musculoskeletal system and then fit the modelled muscles to a specific human subject. We present a reduced muscle model, a planar musculoskeletal model, and a fitting method that can be used to find a feasible set of active and passive muscle parameters for a specific subject. At a minimum, the fitting method requires inverse dynamics data of the subject, a scalar estimate of the peak activation reached during the movement, and a plausible initial estimate for the strength and flexibility of that subject. While additional data can be used to result in a more accurate fit, this data is not required for the method solve for a feasible fit. The minimal input requirements of the proposed fitting method make it well suited for subjects who cannot undergo a maximum voluntary contraction trial, or for whom recording electromyographic data is not possible. To evaluate the model and fitting method we adjust the musculoskeletal model so that it can perform an experimentally recorded stoop-lift of a 15kg box.