A comparison among different Hill-type contraction dynamics formulations for muscle force estimation
Muscle is a type of tissue able to contract and, thus, shorten, producing a pulling force able to generate movement. The analysis of its activity is essential to understand how the force is generated to perform a movement and how that force can be estimated from direct or indirect measurements....
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2016-01-01
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| Series: | Mechanical Sciences |
| Online Access: | https://www.mech-sci.net/7/19/2016/ms-7-19-2016.pdf |
| Summary: | Muscle is a type of tissue able to contract and, thus, shorten, producing a
pulling force able to generate movement. The analysis of its activity is
essential to understand how the force is generated to perform a movement and
how that force can be estimated from direct or indirect measurements.
Hill-type muscle model is one of the most used models to describe the
mechanism of force production. It is composed by different elements that
describe the behaviour of the muscle (contractile, series elastic and
parallel elastic element) and tendon. In this work we analyze the differences
between different formulations found in the literature for these elements. To
evaluate the differences, a flexo-extension movement of the arm was
performed, using as input to the different models the surface
electromyography signal recorded and the muscle-tendon lengths and
contraction velocities obtained by means of inverse dynamic analysis. The
results show that the force predicted by the different models is similar and
the main differences in muscle force prediction were observed at
full-flexion. The results are expected to contribute in the selection of the
different formulations of Hill-type muscle model to solve a specific problem. |
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| ISSN: | 2191-9151 2191-916X |