I agree with Mike. You want to make sure you put on good muscle if that is what you're trying to do, but even more important than that is endurance. It takes a lot to fight at full force for a three to five rounds. If you can get your stamina up, you will be a better fighter for it. Make sure you're training at a good gym and they should be able to help you with some workout. Eat right, too. That's really important.