This article talks about one big upgrade in player health and how it is changing the world of heavy contact sports. One new type of technology that is made by Adidas is called MiCoach. This new technology is put into their sportswear and it allows you to track your muscles how you work out and what is happening to your body. If you overwork a muscle and are in danger or hurting it, you will know to stop and how to treat serious injuries before they occur. This is helpful in heavy-contact sports because you dont know how hard to go in practice and this can limit the number of off the field injuries for players.