Answer a few short questions and narrow the list down fast.
The internal and external obliques flank the rectus abdominis, responsible for torso rotation, lateral flexion, and anti-rotation stability.
Russian twists, Pallof presses, side planks, woodchoppers, and hanging windshield wipers.
8–10 sets per week. Emphasize anti-rotation (Pallof press for 10–12 reps) to build a tight, resilient waistline without unnecessary bulk.