The drill at 7:00 is Excercise 9 ... planting against the wall and then swinging up and placing your feet on the wall ... pausing there ... then swinging back down to the gym floor.
There's one vaulter that looks to be a 5.00m+ vaulter that does this. His POLE is spotted by the coach ... his grip is too high for the coach to spot him directly. This is safe, I think, since the vaulter is experienced enough to handle himself well in the air, and can land feet first if he gets into trouble.
There's a second vaulter that looks to be a beginner ... or maybe a 2nd year vaulter. His BODY is spotted by the coach ... and he's held to the wall by the coach. This drill looked safe ... since it was executed correctly, with everything under control.
The concern that I would have is if the spotter/coach is inexperienced (or not strong enough to hold the vaulter's weight), or if the vaulter is unpredictable. That's when things get out of control ... and when accidents happen.
The WORST combination would be a short, weak, inexperienced spotter with a tall, non-gymnastic, inexperienced vaulter using a grip that's so high that the spotter can't spot his BODY.
Re the utility of the drill ... I think it's interesting ... and it gives the vaulter
some awareness of where he is ... or where he should be ... in the air (halfway thru his swing) ... but I'm a little skeptical as to whether it's a GREAT drill to do repeatedly. I think not. I think that once the vaulter can do this drill ... and learns to trust himself (not to panic) when he's halfway inverted on the pole ... he's better off spending time on other drills that are more difficult to do. For example, I don't think the 5.00m+ vaulter gained much from doing this drill, IMHO. He probably only demonstrated the drill to show how it can be done. But he's probably already advanced enough that he's not going to learn much new from doing it ... he didn't seem to have a "
fear of being upside down" that needed to be conquored.
On the other end of the scale, I don't think first-year vaulters should do this ... unless they're already good gymnasts ... which eliminates most of them. There's other more important drills to work on.
PP, if you're doing these with your HS kids, I would at the very least do it on a wrestling mat ... to break your fall when you goof up. But I wouldn't spend much time on it ... I think it's more of something you can do just for the fun of it.
Kirk