GEORGE MAAS | ONLINE COACH 💪🏽 on Instagram: "Rear delt fly mistake ❌ Common mistake I see is People bring their arms back way too far They squeeze their shoulder blades back ❌ Don’t do that Instead Push (protract) your shoulders forward Think as if you’re trying to sweep your arms as far out to the sides as possible This will isolate your rear delts WAAAYYY MORE 🔥🔥 Thanks me later 📲 FOLLOW me for now and for more optimal training tips 💪🏽💪🏽💪🏽 Thanks to the lovely @holly_fitnessformula