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 asana practice, but also stated that the breathing should be deep breathing with sound. He reiterated this notion in a conference in 2013 stating, "You do normal breath, inhalation and exhalation with sound. Ujjayi breath is a type of prāṇāyāma. This is just normal breath with free flow". In 2014 published on YouTube, Manju Jois dodged the question, "What is the difference between Ujjayi breathing and free breathing?" by saying that "the breathing in Ashtanga should be long and deep with the sound like the ocean". He also states that if you don't make sound, that is okay, too. However