F3 Training Center, also known as Bad Apple MMA, is a multifaceted training facility in Columbus offering instruction and competition avenues in Muay Thai, kickboxing, mixed martial arts, Brazilian Jiu-Jitsu, boxing, and bodybuilding. The center also provides personal training, nutritional and dieting advice, muscle toning, weight loss support, women's fitness, and general cardio and strength training for a range of ages, weights, and experience levels.