What muscles are involved in chest training?

The muscles involved in training the chest are the pectoralis major, pectoralis minor, anterior deltoid (front shoulder muscle), and the triceps. While the pectoralis major is the main player in training the chest, there are several helper muscles that perform important tasks to allow the arms to move. The pectoralis minor also works to help move your shoulder blades while the triceps (the muscle on the back of your arms) helps with pushing and throwing. The anterior deltoid gets in on the action, helping move your arms forward and to the middle of your body. With each pushing, pressing, or throwing motion, each muscle listed must contract to create the motion. No muscle works in isolation! Given this, chest exercises work to enhance many more muscles than just the pecs, making these exercises a great part of a comprehensive upper body workout.