More kids may be getting hurt in gym class because of poor movement skills.
A new study says physical education class injuries are up 150 percent.
Researchers from the nationwide children's hospital say over 400,000 kids were sent to emergency departments for gym injuries over an 11-year span.
Some experts say an inactive lifestyle may be the cause of the dramatic increase.
Others say kids aren't being taught body awareness.
The report is in an online issue of "Pediatrics".