This is the most effective way for maximizing muscle growth. (fitnessandpower.com)
This is important because increased circulation help maximize muscle growth and allows your body to work harder for longer periods of time. (nogenesismax.net)
I recommend that guys do most of their lifting in the 4 to 6 rep range that girls wanting to maximize muscle growth include this type of training in their routines as well. (legionathletics.com)