Upaviṣṭa Koṇāsana without evidence, to be useful for "gynaecological problems", and safe in both menstruation and pregnancy provided no strain is applied. However, the founder of Ashtanga Vinyasa Yoga, K. Pattabhi Jois, states that it should not be performed in pregnancy, though agreeing on its benefit for the sciatic nerve. Upaviṣṭa Koṇāsana Upaviṣṭa Koṇāsana (Sanskrit उपविष्टकोणासन), also written Upavistha Konasana or "wide-angle seated forward bend" is an asana in hatha yoga, sitting upright with the legs as wide apart as possible, grasping the toes and leaning forward. The name of the pose is from the Sanskrit उपविष्ट (upavishta) meaning "open", कोण (kon)
Ashtanga vinyasa yoga more breaths in difficult postures. Various influential figures have discussed the specific process of breath in ashtanga. Pattabhi Jois recommends breathing fully and deeply with the mouth closed, although does not specifically refer to Ujjayi breathing. However, Manju Jois does and refers to breathing called "‘dirgha rechaka puraka’, meaning long, deep, slow exhalations and inhalations. It should be dirgha... long, and like music. The sound is very important. You have to do the Ujjayi pranayama". In late 2011, Sharath Jois, the grandson of Pattabhi Jois, declared his feelings on the issue, stating that Ujjayi breathing was not done in the