Dr. Weber at The Children's Hospital of Philadelphia is looking for boys and young men with Duchenne Muscular Dystrophy between 5-20 years old to participate in a study to learn more about bone health. Study participation includes completing two study visits: one baseline visit and one 12-month follow-up visit. To be eligible, participants must have used steroids for a minimum of 12 months by the time they complete their baseline visit. Eligible study participants will be paid for each study visit. If interested in hearing more about this study or being screened for eligibility, please contact Dr. David Weber at davidweberresearch@chop.edu.

The purpose of this study is to find out how the brain learns to move in infants with and without brain injury. Some infants with brain injury later have cerebral palsy (CP), a condition that makes it hard for infants to learn how to move and control their balance, and others do not. Three groups of infants will participate- infants who had a brain injury and are at high risk for CP, infants who had a brain injury and are not at high risk for CP, and infants who are typically developing.