Back Extensions Posted on November 8, 2015March 11, 2019 by Sophie Level 1 – Arms Bent Level 2- Arms Extended Level 3- Arms and Legs Raise GHD Back Extension View this post on Instagram A post shared by Sara-Clare Lajeunesse (@adventuresofsaraclare) on Sep 11, 2015 at 1:30pm PDT This content is only available to members.