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: Setting the feet too close to the wall so the knees travel far past the toes, which overloads the joint. Letting the lower back peel off the wall as fatigue sets in, which removes the quad isolation. Letting the knees cave inward as the hold gets hard, which strains the joint. Holding the breath to push through the burn, which spikes blood pressure unnecessarily.
💪 Where you should feel it: Mainly in the Quadriceps.
Variations and alternatives
Same muscle and movement pattern with different equipment.