The line at the bottom highlights the tipped back position of his pelvis. (candokiddo.com)
If you can maintain the upright position of your pelvis without the support of your hands on the floor, bring your hands to the top rim of your pelvis. (yogajournal.com)
SET - UP — Lie on your back with your knees bent and find a neutral position of your pelvis by placing the heel of your hands on your hip bones and your middle fingers reaching toward your pubic bone. (whitneyport.com)