The Front Barbell Squat is rarely seen in gyms these days, but occasionally seen used by old school bodybuilders or powerlifters. It is a fantastic exercise to work the quads more, with less focus on the glutes and hanstrings. Keep the bar nice and high and lower for 3 seconds and drive up explosively for about a second. There's more knee flexion with this exercise than the back squat, so it targets the quads more. Good posture is a must with this exercise to prevent injury. Also ensure you use a full range of motion. Nick Jones - World bodybuilding champion & Zoran Lekic - bodybuilder.