This proven workout isn't for the faint-hearted. with some hard graft you'll quickly see results in your size, strength and energy in just one month. The combination of high-intensity circuits, staple cross-fit moves and some good old-fashioned weight training, will keep your muscles continually guessing. Thickness is what you see from the side. It takes years and years to build the kind of density that, when you turn from the side, you look super, super thick. Those are the mid-back muscles.
