As a physical therapist, what’s the ultimate core exercise? This partner-resisted band crunch challenges your core in ways traditional sit-ups simply can’t. By creating tension overhead while maintaining pressure between the legs, you activate deep stabilizers, improve trunk control, and train your abs to work the way they do in real life - resisting force, not just creating movement. Great for athletes, back pain prevention, postpartum strengthening, and anyone looking to build true core stabil