The atmosphere is good and there is loud music playing in the gym in Copenhagen where the elite gymnastics girls train for up to 20 hours a week. You have to if you want to participate at the elite level, and they do. As a rule of thumb you have to put in at least 10,000 hours of training to compete internationally. Doing gymnastics you primarily fight yourself; your fears, doubts and pain, but the youngsters help and encourage each other. It might be a lone battle, but they fight it side by side.