Abstract
In biomechanics, multi-segmented rigid-body and finite element (FE) models have become an essential tool to explore and quantify the dynamics of human motion through objective parameters. At the neck level, numerous segmental and parametric FE approaches have been used to quantify loads (e.g. to evaluate the design of spinal devices), but only a few studies have explored the influence of subject-specific geometric postural variations on the cervical spine's behaviour (Frechede et al. 2006; Laville et al. 2009). Explorations of the influence of the muscles and the subject-specific complexity of their load sharing on the dynamic stability of the cervical spine are still restricted to rigid-body modelling approaches. At this stage, there is a need for detailed subject-specific models that would allow exploring the links between posture, dynamic stability and muscle function. This study presents the framework and current development of such a model.
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