IF you train 6 times a week, doing anyweights (going to the gym n messing about and doing all the machines you look at) then you WONT see any diffrence. you need to train one part of a muscle group properly, and hardly, before it will start to pump enough to build. BTW, muscles dont grow whilst training, they grow inbetween. So if you eat healthy (high protein meals and alike) and rest properly, then your muscles get what they need and grow