ABSTRACT
A computer controlled wrist joint motion simulator has been developed that actively moves forearms from cadavers through cyclic planar flexion-extension motions, planar radial-ulnar deviation motions, and combined motions such as circumduction. Hybrid position-force feedback control algorithms are used to determine the wrist flexor and extensor tendon forces necessary to achieve the desired motions. The simulator was used in a series of 12 fresh cadaver forearms to produce both flexion-extension and radial-ulnar deviation motions and was found to cause repeatable, physiological movements. In these experiments, the extensor tendon forces were greater than those of the flexors, typically by a factor of two.
Subject(s)
Movement/physiology , Wrist/physiology , Biomechanical Phenomena , Cadaver , Computer Simulation , HumansABSTRACT
A low-cost FM/FM radio telemetry system is detailed, designed for motion analysis of the knee joint during walking in total knee replacement patients.
