trikona: “three angle/triangle”
Parivrtta Trikonasana (par-ee-vrit-TAH trick-cone-AH-suh-nuh) is a counter pose to Trikonasana. It gives flexibility to the hip joints and tones the buttock muscles, while massaging the digestive organs, thus improving digestion. This pose also gives strength and flexibility to the back muscles, and relieves stiffness and sprains in the lower back. It also opens the chest and gives flexibility to the shoulders.
This pose brings awareness to the back body. Guruji B.K.S.Iyengar would say that twisting poses are to squeeze and soak. We squeeze the body and soak in the new flow of energy in the body. Twisting poses remove stiffness in the back body and in the shoulders; this is the region where stress in the body accumulates. This releases emotions from the mind and the body. Twisting poses are good to release stress and laziness.
Those with back issues such as herniated disc should learn to extend the sides of the trunk in this pose to avoid any compression in the lower back. Those with high blood pressure should avoid lifting their arms up and looking upwards. Women who are pregnant or menstruating should refrain from this pose.