It's a dumbbell flye with plates. In their training hall they don't have dumbbells, so he's using plates to warm his shoulders up. That is all.
This popped up in my YT feed. Another ‘novel’ movement is my first thought as it can never be incrementally loaded. I’m not sure it’s even very good for the shoulder. Why not just press, lateral raise, or clean ?
WHY Lu Xiaojun's "Lu Raises" are Genius for Weightlifting - YouTube
It's a dumbbell flye with plates. In their training hall they don't have dumbbells, so he's using plates to warm his shoulders up. That is all.