Alpha Fuel 720 Pre-exhausting muscles is a great way to build the most stubborn groups. For example, before lots on the rows, your biceps might feel fatigued. Try performing exercises that allow you to isolate certain muscles in order to avoid having to use the muscles that are keeping you from completing your reps. If you do so, this will make your lats very tired, and our biceps will work right. http://alphamanproreview.com/alpha-fuel-720/