Becoming familiar with the muscles that make up your body has more benefits than simply allowing you to talk shop with your training partners. The more familiar you are with the muscles you’re working, the better you’ll be able to judge what’s needed to make improvements. In this article we’ll get to know the muscles that make up the shoulders and arms.
Shoulders and arms work together but they require significantly different exercises to make them bigger and stronger. The main muscles found in these areas are as follows:
1. Deltoid – this is comprised of three separate segments that cover the shoulder and run a few inches down the arm. The anterior deltoid raises the arm to the front. The middle deltoid raises the arm to the side. The posterior deltoid draws the arm backwards.
2. Rotators – these are small muscles of the rotator cuff that control small movements of the upper arm. Consisting of an internal rotator, external rotator and supraspinatus they are used in lifting and throwing actions.
3. Biceps brachii – the biceps covers the front part of the upper arm and consists of a long head and a short head....
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