Strengthen your core, hips, quads and back using this abs exercise to build full-body ... butterfly pull-ups, toes to bar, or muscle-ups — all CrossFit staples. The exercise mimics how your ...

Here are the 4 best exercises to make your abs look toned. 1. Front Plank How to do it: Rest your forearms and toes on the ground ... Hang from a fixed bar and lift your legs straight up to ...