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 ...

South Carolina Gamecocks running back MarShawn Lloyd lifts weights during a workout. Weightlifters have to watch out for an injury to the pectoralis major muscle. Jeff Blake The State Q. I was working ...

A muscle strain in the chest may cause sharp pains when moving or breathing. They commonly occur due to impact injuries or overuse and are often treatable with rest, pain relievers, and physical ...

People who want to develop their lower chest muscles can try a range of exercises to strengthen the pectoral muscles. Some lower chest workouts include incline pushups and cable crossovers. The ...