SMR Thoracic Erectors Theracane Hold Theracane as shown with left hand on top handle and right hand on the bottom ball. Place the curved end of the Theracane just to the side of the spine on the muslces, not the spine itself. Apply pressure to any tender spots for 30-90 seconds. Posted on March 14, 2018October 7, 2018 by Adventure Performance Training Post navigationPrevious post: SMR Thoracic Erectors Foam RollNext post: SMR Pectorals Foam Roll