The Activity Sensor Feet Pads are utilized with Lafayette Instrument Company’s computerized polygraphs LX4000-S, LX5000-S, and LX6-S, and are constructed to detect subtle, as well as gross movements of feet and toes of the subject during a polygraph examination. The sensors are placed on the floor and the examinee’s feet set upon them. By providing a graphic record of subject movement, the Activity Sensor Feet Pads allow the polygraph examiner to concentrate on administering the polygraph exam instead of trying to observe the subject’s movement.