Abstract: A system and methods are provided for switching a signal from a first transmission media having a characteristic impedance to a second transmission media. The system includes a driver for driving a signal, the driver having a driver input having a high impedance relative to a characteristic impedance of the first transmission media and the driver having a driver output having an impedance equal to the characteristic impedance of the first transmission media. A first switch couples the driver output either to the first transmission media or to the second transmission media and couples a signal from the first transmission media, which is coupled to the driver input, either to the first transmission media or to the second transmission media.

Abstract: An apparatus for measuring foot forces during walking uses a specially configured spring seated in a transducer plate to transmit static and dynamic forces on the foot during walking to strain gauges mounted on the transducer plate, which, in turn, may be monitored and recorded for diagnostic purposes, particularly to aid in treating patients with lower extremity dysfunction.