September 3, 2018July 15, 2024 Michael McIsaac, MS, MS, CSCS 0 Comments 24views Anti-Extension - Option 1 You may also like 1. Level 1 McGill Crunch (Front View) 31views Anti-Extension - Option 1 2. Level 2 McGill Crunch (Side View) 22views Anti-Extension - Option 1
