My Gym Children's Fitness Center divides its classes into seven age groups, each based in the process of natural childhood development. Staff and instructors draw from current physiological, psychological, and sociological studies, as well as hands-on childcare experience, to design age-appropriate workouts that hone each age group's most vital skills. Classes accommodate children aged 6 weeks–8 years, focusing on skill sets ranging from visual and spatial exploration to gross-motor-skill development to structured games and gymnastics fundamentals. Eventually, this instruction leads up to full cardio and sports-focused classes for children up to 13 years of age, which keep kids fit enough to track and capture their own stuffed animals.