by Frank J Slideboard Bodysaw May 17, 2021 Anti-Extension, Core Work Check Price Men’s Slideboard Bodysaw Lock your ribs down with your abs. Tuck your tailbone between your knees. Do not let your lower back sag. Move without losing your positioning. ADVERTISEMENT Facebook Facebook Comment Ab Wheel Iso Ab Wheel Rollout Related Posts Half-Kneeling Pallof Press Iso With Band Animal Day Workout How To Shift From Weightlifting To Bodyweight Exercises