Development of a finger biomechanical model and its considerations

Abstract The development of a biomechanical model for a human finger is faced with many challenges, such as extensor mechanism complexity, statistical indeterminacy and suitability of computational processes. Motivation for this work was to develop a computer model that is able to predict the intern...

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Bibliographic Details
Published in:Journal of biomechanics 2010-03, Vol.43 (4), p.701-713
Main Authors: Fok, Kim Seng, Chou, Siaw Meng
Format: Article
Language:English
Subjects:
Biological and medical sciences
Biomechanical model
Biomechanics
Computer Simulation
Computerized, statistical medical data processing and models in biomedicine
Ergonomics
Extensor mechanism
Finger Joint - physiology
Finger modelling
Finger Phalanges - physiology
Fingers - physiology
Fundamental and applied biological sciences. Psychology
Humans
Inverse dynamic simulation
Medical sciences
Models and simulation
Models, Biological
Movement - physiology
Muscle Contraction - physiology
Muscle, Skeletal - physiology
Numerical optimization
Physical Medicine and Rehabilitation
Statistical indeterminacy
Vertebrates: body movement. Posture. Locomotion. Flight. Swimming. Physical exercise. Rest. Sports
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Summary:Abstract The development of a biomechanical model for a human finger is faced with many challenges, such as extensor mechanism complexity, statistical indeterminacy and suitability of computational processes. Motivation for this work was to develop a computer model that is able to predict the internal loading patterns of tendons and joint surfaces experienced by the human finger, while mitigating these challenges. Proposed methodology was based on a non-linear optimising mathematical technique with a criterion of boundary conditions and equality equations, maximised against unknown parameters to reduce statistical indeterminacy. Initial validation was performed via the simulation of one dynamic and two static postures case studies. Past models and experiments were used, based on published literature, to verify the proposed model's methodology and results. The feasibility of the proposed methodology was deemed satisfactory as the simulated results were concordant with in-vivo results for the extrinsic flexors.
ISSN:0021-9290
1873-2380
DOI:10.1016/j.jbiomech.2009.10.020