Alex Effer on Instagram: "📍Don’t Make This Mistake In Your Deadlifts📍 ❌When performing deadlifts, many will extend their knee instead of the hips. ✅Instead, we should be keeping our knees flexed throughout the entire movement. 🔥This way our hips are the main driver of the movement and placing all the tension in the glutes instead of the back. 👉Want a database of exercises that goes into depth of what they do, how to progress them and when to use them? 🏋️‍♂️The check out my Roadmap of Exerci