Arena Fitness is L.A.’s number one choice for personal training, semi-private training and group exercise classes! Now with our App you can book your sessions, join in on our fitness challenges, check your body mass index, upload your fitness photos and interact within the Arena community. Traveling? With our App you can now take workouts on the road. Along with information on our classes and trainers, we’ve got recipes and nutrition tips to help you achieve your fitness goals. Download our app now, and …Welcome to Arena!