This may seem a little lame by stating that doing push-ups is a great workout to do, because everyone has heard of them throughout their lifetime. People assume that to get results in the gym, you have to perform crazy exercises in order to get results. However, the main thing is to work as many muscles as possible in one exercise. The push-up does this well because it hits almost every major muscle group in your midsection and upper body. For instance, it works your core, chest, and deltoids to name a few major groups in your upper body. In adding this to your routine, you will be greatly benefited.