Help your young athlete prepare for running, whether for cross country, track, 5K or a fun run! Developed by pediatric sports medicine specialists from the Washington University and St. Louis Children’s Young Athlete Center, the program focuses on 10 stretching and strengthening exercises to improve flexibility, strength and endurance of the muscles used for running. The St. Louis Children’s Hospital YouTube station is intended as a reference and information source only. If you suspect you have a health problem, you should seek immediate care with the appropriate health care professionals. The information on this website is not a substitute for professional care, and must not be used for self-diagnosis or treatment. For help finding a doctor, St. Louis Children’s Hospital Answer Line may be of assistance at 314.454.KIDS (5437). The opinions expressed in these videos are those of the individual writers, not necessarily St. Louis Children’s Hospital or Washington University School of Medicine. BJC HealthCare and Washington University School of Medicine assume no liability for the information contained in this website or for its use.