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Using these muscles will allow you to lift more weight.Muscle NitXT Complete a thorough analysis of your own body to best determine what you are capable of and what you should not do just yet. This gives you a starting point to establish your goals. Two of the key factors to look at when making this sort of evaluation are composition and body weight.Muscle NitXT Focus on improving bicep curls. During a normal bicep curl, you aren't receiving a lot of help from the top part of the rep because you aren't moving the dumbbell or bar past the point where it is parallel. The top of the curl is actually the part which requires the most effort. http://www.supplementsmore.com/muscle-nitxt/More...