There is an interesting discussion about this video on the Pole Vault Power Message Boards. Overall, an unique look at a weight room session of Olympic Champion Steve Hooker.
Hooker is coached by Russian-turned-Aussie coach Alex Parnov, who also coached world champion Dimitri Markov, former world record-holder Emma George and Olympic silver medallist Tatiana Grigorieva.

Derek Miles, the 2008 US Olympic Trials champion, jumping 5.35m (~17’7″) from 4 lefts!
15’6 grip, 14.9 factory flex