If you want to get in great shape, but can’t stand running on treadmills or lifting weights? You may LOVE one of our group exercise classes. Want to learn some great self-defense skills? Try a kickboxing class and burn up to 1,000 calories an hour. Want to get great muscle tone? Try a boxing class. Want to lose weight and tone up? Try a bootcamp. ATL FITNESS 24/7 group fitness classes are simply the BEST in the business.