PPushups are probably my favorite bodyweight exercise. Not only are they easy to do and target several key muscle groups, but you can also change the way you do them to target specific areas. Push-ups target the muscles of the chest (pectorals) and the backs of the arms (triceps) with some assistance in the shoulders (front delts). By changing the position of your hands, you can alter the emphasis on each of those muscles.
The exercises below, which you can also see in the video, show the different types of push-ups you can include in your workouts. If you want a really powerful upper body session, try doing ten of each in one circuit in a row. You can rest up to 30 seconds between