Your pectoralis major is a large and powerful chest muscle that’s shaped like a fan. It starts from two sections: your breastbone (sternum) and your collarbone (clavicle). The two sections come ...

Do you want to change the shape of your body through exercise? Or maybe you’re an athlete who wants to improve your swing or throw. If so, building your chest muscles can help achieve these results.

BALTIMORE – A torn pectoralis major muscle, or pec muscle, is a serious injury striking boxers, pro wrestlers, body builders and even a growing number of military servicemen. It's a condition that ...

When it comes to strength training your muscles for a sculpted, well-defined chest, you’re probably familiar with your pectoralis major muscles, the large set of muscles that stretch across the upper ...

The pectoralis major muscle is a large muscle in the upper chest, fanning across the chest from the shoulder to the breastbone. The two pectoralis major muscles, commonly referred to as the ‘pecs,’ ...