Lateral Lunge
Start with feet shoulder-width apart and core braced for stability. Take a wide step out to the side with one leg, planting the whole foot. Hinging hips back, bend knee to 90 degrees so that thigh is parallel to the floor. Keep stationary foot in contact with the floor and completely straight. Drive through the planted foot and push the lunging leg off the ground and return to starting position. That’s 1 rep.