Arms and core! You need a wall close to you to finish. You can modify the first drill by moving your feet back until it feels ok with your wrists. You can find me teaching vinyasa flow at Hot Yoga Uppsala, Sweden. If you have a chance stop by the studio take class and say hello :) Please comment, suscribe and share the video if you like it! You can find me on all other social media Shot at: https://www.uppsalahotyoga.se