The only way that a body builder can successfully recruit his or her motor units is by lifting heavy. The volume of a body building program determines how effectively the body motor units are stimulated to precise growth and development. This term, volume, is specifically used in body building circles to describe or quantify the workload ascribed to a particular body building workout. To determine the volume of a body building workout, one should multiply the number of sets with the reps for each exercise. Read more