Laying stomach down on the ground raise you torso and legs off the ground simultaneously for a lower back workout. (Subs well for GHD) Additionally, move arms from straight ahead out to your sides and back for reps to get a good shoulder workout while working your lower back and core.
CrossFit Level 2 Certificate Course
The movements page is a breakdown from your workout programming. It is a great tool for analysis, but it does not show you how to effectively design, scale or evaluate your programming. We highly recommend attending the CrossFit Level 2 Certificate Course to learn how.