If you want to tone and define weak arms so that you can wear something sleeveless with confidence or you want to increase muscle mass, working the muscles in the front and back of upper arms will help you to happen. Most people new to bodybuilding pay a lot of attention to building big arms, sometimes to the point of overtraining. Don ‘; t forget, the arm muscles are brought into play during most exercises aimed to other body parts and care must be taken not to exaggerate things. Having said this, the arms are parts of complex bodies of their own and deserve a properly focused program of exercise. In basic terms the arm consists of three major muscle groups:
1. Biceps brachii – two upper arm muscles that run before the elbow to shoulder.
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