Abstract

We present a grasp performance evaluation system that uses a sensorized glove to measure the kinematics and the contact dynamics of human object manipulation. This system is envisioned as an alternative to visual evaluation methods currently used by skilled physicians to determine the severity of functional hand impairments due to blunt trauma (ligament injuries tin the fingers) and neurological disorders (cerebral palsy, stroke, etc.). The proposed grasp evaluation system can benefit physicians and prosthetists by providing an objective, consistent metric to evaluate hand function and potentially reducing the amount of time required for diagnoses. Human subject study involving grasps of daily objects were conducted to demonstrate the system’s ability to accurately measure the kinematics and dynamics of grasping tasks, and generate graphical representations of the grasp contact dynamics with color map visualization.

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