med/safety crews at events

watching video highlights of the event in singapore prompted me to write this. i watched it yesterday to see how dallas hurt her leg. the crash didn't look out of the ordinary, but nonetheless, she was hurt seriously. the next couple clips kind of concerned me. the med/safety crew where carrying her off in a stretcher and you can see her bouncing a bit in it as they ran her off. the next clip, you see a lady hanging on to her leg which i'm assuming is to keep her leg stabilized.

1. in reference to dallas' injury, shouldn't they have immobilized or stabilized her leg? couldn't her bouncing on the stretcher have caused more injuries? (not saying it did)

2. what are the qualifications of the med/safety crews at events? if they're not emt, firefighers or paramedics, what kind of training do they have, or are they not required any certification?

3. do people's boat crews (outside of events) know what to do in case of a serious injury?



**disclaimer**

i'm in no way criticizing the actions of the safety crew in singapore. i'm merely asking what proper procedures are and their qualifications to perform such duties.