Dr. Patrick Malartsik | Pain & Mobility Specialist on Instagram: "❌Stop doing sit-ups if your back hates you. The McGill modified curl-up trains your abs without cranking your spine into repeated flexion. How to do it: • One knee bent, one straight • Hands under your low back (maintain neutral) • Brace your core, lift head/shoulders slightly • No crunching Why it works: ✔ Builds core stiffness (not spine stress) ✔ Protects irritated discs ✔ Teaches your abs to support your spine, not bend it ✅ D