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: Lifting the upper arm off the pad mid-rep, which kills the strict isolation the bench enforces. Locking the elbow fully at the bottom under load, which strains the joint and removes muscle tension. Dropping the dumbbell back down quickly, missing the lower-biceps stretch where most of the growth lives. Loading too heavy, which forces the pad-arm to lift and turns the curl into a swinging cheat rep.
💪 Where you should feel it: Mainly in the Hauikset.
Variations and alternatives
Same muscle and movement pattern with different equipment.