When your toddler turns into Speedy Gonzalez, he's flexing his muscles -- literally. "Running falls under the developmental domain of gross motor," says Sara Hamel, M.D., a behavioral and developmental pediatrician at the Children's Hospital of Pittsburgh. This type of development is a huge leap...

Kids are natural runners, but whether they're accompanying you on a run or participating in a school program, they require special care at every step of their development. When children become involved in running it not only keeps them physically fit and healthy, it also provides...