When preparing a complete body building workout plan, it is essential that you workout your upper body and legs. In the legs there are three main muscles groups you need to focus on; the quadriceps, hamstrings and calves. By working out all these muscles, you will build strong and durable legs. Fortunately, most leg exercise regimes will workout each of the three muscles. For building strength and power in the legs squats are great. The exercise involves placing weight on a barbell and...