BKS Iyengar adjusting and instructing Manouso that the perineum should not move toward the anal mouth in parsva sirsana (headstand) during the master class taught by Manouso Manos at the Yoga Journal Iyengar Yoga Intensive in Estes Park, Colorado in 2005. Over eight-hundred people attended. You may view the entire class here, and purchase the 5 DVD set here.
Disillusioned With Iyengar Yoga 