In 1933, the electrobasograph invented by Dr R. Plato Schwartz (1894-1965) of The Myodynamics Laboratory of the University of Rochester, N.Y., was first exhibited in the U.S. to the American Medical Association convention in Milwaukee, Wisc. The device could make a record on film of “the walking gait of individuals, to distinguish between actual and spurious limps in damage claims for injuries.” In conjunction with Dr. Schwartz’s separate researches into poliomyelitis and cerebral palsy in the late 1940s and 1950s, the Laboratory extended its prior electromyographic researches into the effects of poliomyelitis and cerebral palsy on muscle function.«