Muscular Contraction
Muscular tonus refers to a state of continuous contraction through which the muscle is immediately active. Contraction takes place in the case when the insertion ends being drawn near follows the increase in strain of the muscular fibre. This is one of the most common situations to be encountered during sporting activities. Isometric contraction occurs when the insertion ends of the muscle maintain the same distance even after the increase in tension of the muscular fibre.
Filed under The Muscles in the Human Body