Traditional barbell squats VS the X Gym Quadraslide invention

Traditional barbell squats, using the typical fast, ballistic reps, common to conventional training, can cause injuries to joints, create muscle tears, and develop repetitive strain injuries like tendonitis.

X Gym has solutions! For this particular problem, the answer is the Quadraslide, invented by PJ, X Gym founder. See the video below for this demo and Xplanation: