The MusIC method: a fast and quasi-optimal solution to the muscle forces estimation problem. Issue 2 (25th January 2018)

• Record Type: Journal Article
• Authors: Muller, A.; Pontonnier, C.; Dumont, G.
• Is Part Of: Computer methods in biomechanics and biomedical engineering. Volume 21:Issue 2(2018)
• Page Start: 149
• Page End: 160
• Publication Date: 2018-01-25
• Subjects: Musculoskeletal simulation -- computation time -- optimality -- interpolation -- correction; Biomechanics -- Data processing -- Periodicals; Biomedical engineering -- Periodicals; Biomechanics -- Periodicals; Biomedical Engineering -- methods -- Periodicals; Computing Methodologies -- Periodicals; 612.7
• DOI: 10.1080/10255842.2018.1429596
• Languages: English
• ISSNs: 1025-5842

Abstract

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.