September 3, 2018July 15, 2024 Michael McIsaac, MS, MS, CSCS 0 Comments Anti-Extension - Option 1 21 views You may also like 1. Level 1 McGill Crunch (Front View) 28 views Anti-Extension - Option 1 2. Level 2 McGill Crunch (Side View) 20 views Anti-Extension - Option 1
