As a result of this accident we will conduct a thorough review of this discipline and adopt any appropriate changes to future X Games.
For 18 years we have worked closely on safety issues with athletes, course designers and other experts. Still, when the world's best compete at the highest level in any sport, risks remain. Caleb was a four-time X Games medalist attempting a move he has landed several times previously.
Moore initially walked away from the crash seemingly intact, but he was hospitalized later with a concussion and bleeding around his heart. Following surgery, he sufferedand family members began to expect the worst. "The prognosis is not good at all," his grandfather told The Denver Post. "It's almost certain he's not going to make it."