Lateral lunges Stand w Shred FX h feet at waist degree and a dumbbell in each hand (arms glued to the frame and w Shred FX h the palm of Shred FX the hand pointing at the waist). From this feature take a long step to the left and, retaining the knee (left) at the back of the ft, decrease the frame, bringing the dumbbells to the ground, growing a form of "body" for the aid foot. 

http://newsupplements2017.com/shred-fx/