This page tells you what the machine is. Step-by-step instructions, common mistakes and a video of the movement are in the Luio app — the video shows the range of motion that text cannot describe.
⚠️ Most common mistake: Bending the elbows mid-rep, which turns the fly into a sloppy press and loses the chest isolation. Going too heavy, which forces the elbows to collapse and stresses the front shoulders. Crashing the dumbbells together at the top instead of pausing for a controlled chest squeeze. Pulling the shoulder blades off the bench, rolling the shoulders forward and risking shoulder strain.
💪 Where you should feel it: Mainly in the Chest.
Variations and alternatives
Same muscle and movement pattern with different equipment.