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A subject-specific biomechanical control model for the prediction of cervical spine muscle forces

Article dans une revue avec comité de lecture
Author
VAN DEN ABBEELE, Maxim
LI, Fan
480877 Hunan University [Changsha] [HNU]
POMERO, Vincent
BONNEAU, Dominique
ccSANDOZ, Baptiste
ccSKALLI, Wafa
ccLAPORTE, Sébastien
175453 Arts et Métiers ParisTech
466360 Institut de Biomecanique Humaine Georges Charpak
99538 Laboratoire de biomécanique [LBM]

URI
http://hdl.handle.net/10985/15820
DOI
10.1016/j.clinbiomech.2017.12.001
Date
2018
Journal
Clinical Biomechanics

Abstract

Background: The aim of the present study is to propose a subject-specific biomechanical control model for the estimation of active cervical spine muscle forces. Methods: The proprioception-based regulation model developed by Pomero et al. (2004) for the lumbar spine was adapted to the cervical spine. The model assumption is that the control strategy drives muscular activation to maintain the spinal joint load below the physiological threshold, thus avoiding excessive intervertebral displacements. Model evaluation was based on the comparison with the results of two reference studies. The effect of the uncertainty on the main model input parameters on the predicted force pattern was assessed. The feasibility of building this subject-specific model was illustrated with a case study of one subject. Findings: The model muscle force predictions, although independent from EMG recordings, were consistent with the available literature, with mean differences of 20%. Spinal loads generally remained below the physiological thresholds. Moreover, the model behavior was found robust against the uncertainty on the muscle orientation, with a maximum coefficient of variation (CV) of 10%. Interpretation: After full validation, this model should offer a relevant and efficient tool for the biomechanical and clinical study of the cervical spine, which might improve the understanding of cervical spine disorders.

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