muscles in a single workout, such as your chest with your back, or your hamstrings with your quads. Alternating like this will allow the tired muscle groups to rest while you work on the other groups. As a result, you can increase your workout intensity because you are limiting the amount of time that you have to spend in a gym.X Nitro Force If you want to gain muscle mass, you should be dead-lifting, bench-pressing and squatting.

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