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Comput Methods Biomech Biomed Engin. 2018 Feb;21(2):149-160. doi: 10.1080/10255842.2018.1429596. Epub 2018 Feb 16.

The MusIC method: a fast and quasi-optimal solution to the muscle forces estimation problem.

Author information

1
a Univ Rennes, CNRS, Inria, IRISA - UMR 6074 , Rennes , France .
2
b Écoles de Saint-Cyr Coëtquidan , Guer , France .

Abstract

The present paper aims at presenting a fast and quasi-optimal method of muscle forces estimation: the MusIC method. It consists in interpolating a first estimation in a database generated offline thanks to a classical optimization problem, and then correcting it to respect the motion dynamics. Three different cost functions - two polynomial criteria and a min/max criterion - were tested on a planar musculoskeletal model. The MusIC method provides a computation frequency approximately 10 times higher compared to a classical optimization problem with a relative mean error of 4% on cost function evaluation.

KEYWORDS:

Musculoskeletal simulation; computation time; correction; interpolation; optimality

PMID:
29451014
DOI:
10.1080/10255842.2018.1429596
[Indexed for MEDLINE]

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