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: Letting the elbows flare wide, which shifts load off the triceps and into the shoulder joint. Moving the upper arms forward and back instead of keeping them locked vertical, turning the lift into a press. Cutting the bottom range short and missing the deep stretch where most growth happens. Going too heavy and dropping the dumbbell down hard, which puts the elbows and back of the head at risk.
💪 Where you should feel it: Mainly in the Triceps.
Train this exercise in Luio
Sets, weights and rest are logged automatically, and Luio suggests your next weight.