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

Show that earl grad - div curl =0... | Filo

Div, Grad, Curl and All That: An Informal Text on Vector Analysis, 4th Edition

Vector-valued functions; grad, div, and curl (Calc 3; Lecture 3-9; Fall 25)

Curl Up Demonstration

McGill Curl-Up - Muscle & Fitness