you can target your upper body, and your lower body on a different workout day. Step 3 - Grow more muscles by lifting heavy weights with low repetition. With this routine, you'll be able to accomplish your repetitions easily, which in turn boost your endurance. New muscle tissues don't develop. Lift weights that are heavy enough so that you are able to finish a set of 6 to 8 repetitions Alpha Xtreme . Eight to ten completed...
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