The serratus anterior muscles contract in utthita trikonasana, drawing the scapula away from the midline and extending the arms. This opposes the action of the rhomboids (which also contract in this pose). Adjusting the contraction of these opposing muscles assists in turning and opening the chest in this pose.
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Yoga is extensively know as a form of exercise that stretches and strengthens the body through various poses know as ASANA. For other people yoga is the realization of inner self satisfaction. For other it is a religion that the believe and must follow. Learn more within this guide by downloading today.