Bilateral contraction: Flexes neck forward and draws chin downward.
Unilateral contraction: Rotates and tilts head to face opposite side.
Closed chain contraction lifts ribcage during respiration.
The lower side sternocleidomastoid contracts in utthita trikonasana, lengthening the upper side sternocleidomastoid and turning the head.
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Learn About The Healing Art Of Yoga. We need to give more importance to our health and the treatment of diseases. A big number of medicines treat only the symptoms of the disease, and not the base cause. As a matter of fact, the cause of a lot of chronic ailments is still being researched.