Squat Lunge.

The weight on your shoulders, not in your hands.

Lunges with a bar or dumbbells often stop because the grip or wrists give out long before the legs do. Here the load rests on shoulder pads, so you hold nothing and can run the set until the quads and glutes are actually empty. The machine is only 765 mm high and needs no special ceiling height, while the 1745 × 1635 mm floor space leaves room for a full lunge without hitting anything. Dead weight 116 kg, Olympic plates (Ø50 mm). The hands are free. The legs are not.