@christiandcastano: CABLE CORE Cross-Body Sit-Up. 2 x 10 reps Sit-ups. 2 x 10 reps Alternating Jackknife. 2 x 10 reps Suitcase 2 x 10 reps V-Ups. 2 x 10 reps Cross-Body Knee Tuck. 2 x 10 each side