RESUMO
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.
Assuntos
Movimento/fisiologia , Punho/fisiologia , Fenômenos Biomecânicos , Cadáver , Simulação por Computador , HumanosAssuntos
Moldes Cirúrgicos , Elasticidade , Feminino , Humanos , Locomoção , Masculino , Matemática , Movimento , Esforço Físico , Estresse Mecânico , Fatores de Tempo , Água/análiseAssuntos
Fenômenos Biomecânicos , Articulação do Joelho/fisiologia , Movimento , Computadores , HumanosRESUMO
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.