The obliques are the core muscles running along either side of your abs. While many people focus solely on front core muscles to achieve a six-pack, they often neglect these essential side stabilizers. This program not only helps you work toward flat abs but also strengthens and sculpts your obliques for a toned, defined look. Building core strength from all angles isn’t just about a beach body—it’s crucial for everyday movement, injury prevention, and boosting performance in other exercises. Best of all, these highly effective 15-minute bodyweight workouts can be done anywhere.