A three-dimensional scalable biomechanical model of the four fingers of the hand to evaluate power grip is proposed. The model has been validated by means of reproducing an experiment in which the subjects exerted the maximal voluntary grasping force over cylinders of different diameters. The model is used to simulate the cylinder grip for two hand sizes and for five different handle diameters. The reduction of the muscle forces using different handle diameters has been studied. The model can be applied to the design and evaluation of handles for power grip and to the study of power grasp for normal and abnormal hands.
Issue Section:
Joint/Whole Body
Keywords:
biomechanics,
physiological models,
muscle,
force,
kinematics,
Hand Modelling,
Grasping,
Maximum Force,
Cylinder Grip
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