Explanation of physiological muscle tremor.

This paper attempts to explain physiological muscle tremor as a protective measure against an unusual limb posture. It emphasizes that most of the events in the stretch reflex loop give rise to feedback signals that are transmitted to a supraspinal tremor generator driver which integrates the signals, drives an appropriate spinal tremor generator and stops the events in the stretch reflex loop. The unusual posture and its attendant feedback are effectively abolished and this consequentially eliminates the physiological muscle tremor.