Using a box or bench, plane the top of the right leg on top of the box/bench. Move the left leg away from box/bench about 2 feet. Making sure the knee doesn’t move past the toes on the left leg, squat down until the thigh is parallel with the ground. Push through the ground to return to the starting position. Hands can be placed behind the head, in front of the body at shoulder height, or on the hips. Repeat all reps on one side before switching legs.