Abstract: In one preferred embodiment, the present invention provides an exercise apparatus in which an impingement member is driven between a selectable start point and a selectable endpoint. When coupled with suitable instrumentation and electronic circuitry, the inventive strength training device allows the measurement, tracking, and computation of force exerted, repetitions performed, measurement and display of position, velocity, acceleration, work, impulse, etc. In addition, archived data can be used to show improvement or problem areas as well as provide an indication of the quality of each repetition and the quality of the workout in general. Such an exercise apparatus comprises: a frame including a base; a linear actuator supported from the frame; an impingement member movable relative to the frame and driven by the actuator; and a controller for controlling the actuator.