Pec Muscles. It can limit arm use, and may cause significant pain. It contains four muscles that exert a force on the upper limb:
This study confirms that suspicion. But did you know that performing bench presses at an incline reportedly maximises upper pec activation during contraction? There are two such muscles on each side of the sternum (breastbone) in the human body:
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The pectoralis major, the larger and more superficial, originates at the clavicle (collarbone), the sternum, the ribs, and a. Internal rotation of the shoulder muscles mnemonic is psalt: Working the chest muscles with a variety of exercises and angles is the best approach, and these five movements do the job and then some. Use the following search tools to find lesson ideas in our database.
