Fed up with pushups? Try these 6 alternative exercises to strengthen the same chest, shoulder and core muscles.

What muscles do push-ups work? Push-ups are a compound exercise, meaning they work multiple muscle groups simultaneously. The main muscles worked are the chest, shoulder and triceps.

The pushup is a staple bodyweight exercise—but is it useful for building muscle? Here's how many pushups reps it takes to build mass and achieve your goals.