The Cybex VR1 Duals Hip Ab & Ad is part of the Cybex Duals line which utilises multi-function mechanisms to get two exercise types in one machine & thus save valuable floor space. The machine offers “slack-free'' drive system that provides immediate engagement & broadens the range of motion because the resistance begins as soon as the exercise itself begins. This feature guarantees that the user doesn't get part-way through the motion before the weight is engaged. It also ensures that the split is not wider than the user's comfort zone. The machine uses knee pads as inputs which minimizes knee stress & keeps knees centred in the pad. The machine also offers dual foot position to accommodate varying user heights.