The purpose of this study is to investigate the effects of a 10-week Zumba dance-based exercise program on body fat (adiposity) and flexibility in healthy 8-year-old children. The study also aims to explore if these effects differ between boys and girls. Participants will take part in a 10-week Zumba exercise program. Researchers will measure the children's body composition (body fat percentage) and physical fitness (flexibility and abdominal endurance) before the program begins (baseline) and immediately after the 10-week intervention is completed.