Welcome to the Michigan Athletic Club, a Division of the Sparrow Health System. Since 1991, we have taken special pride in our reputation as one of the great health clubs in America, as well as in being an integral part in the finest healthcare system in Mid-Michigan. At the MAC, you get what you came for, whether you are a sport enthusiast, a cross trainer, an individual who needs to lose weight or tone muscle, a family with a wide range of needs, or a person who just wants to have fun! Whatever your needs, the MAC calls you to work out, play, just relax, and most of all…have the time of your life!