Chapter-2: The Mechanism of Postural Control
The mechanism of postural control As we all know muscles of the body play a major role in attaining both dynamic and static postures but, there is a contribution of some other body systems working simultaneously in co-ordination with the muscles. There is a center governing the simultaneously working systems of the body. Let us discuss all the important elements of postural control and their mechanism. 1. The governing system of nervous control: The maintenance and adaptation of a posture is controlled by the system of nervous control. The system works on a give and take mechanism of receptor organs (eyes, ears, muscles and joints) giving the afferent stimuli and effector organs (muscles) receiving the command to perform the actions. All that is required for a brain to change a position is an input to produce an output. The input can either be environmental (push, pull, jerk, hit etc.) or internal (bra...