Article
A Metabolic Energy Expenditure Model with a Continuous First Derivative and its Application to Predictive Simulations of Gait
Computer Methods in Biomechanics and Biomedical Engineering
(2018)
Abstract
Whether humans minimize metabolic energy in gait is unknown. Gradient-based optimization could be used to predict gait without using walking data, but requires a twice dierentiable metabolic energy model. Therefore, the metabolic energy model of Umberger et al. (2003) was adapted to be twice differentiable. Predictive simulations of a reaching task and gait were solved using this continuous model and by minimizing effort. The reaching task simulation showed that energy minimization predicts unrealistic movements when compared to effort minimization. The predictive gait simulations showed that objectives other than metabolic energy are also
important in gait.
Keywords
- Metabolic energy,
- Predictive simulation,
- Gait
Disciplines
Publication Date
July 20, 2018
DOI
10.1080/10255842.2018.1490954
Publisher Statement
“This is an Accepted Manuscript of an article published by Taylor & Francis Group in Computer Methods in Biomechanics and Biomedical Engineering on 7/20/2019, available online: https://www.tandfonline.com/doi/abs/10.1080/10255842.2018.1490954?journalCode=gcmb20
Citation Information
Anne D. Koelewijn, Eva Dorschky and Antonie J. van den Bogert. "A Metabolic Energy Expenditure Model with a Continuous First Derivative and its Application to Predictive Simulations of Gait" Computer Methods in Biomechanics and Biomedical Engineering Vol. 21 Iss. 8 (2018) p. 521 - 531 Available at: http://works.bepress.com/antonie_vandenbogert/92/