"Djokovic was well on his way to completing a Career Slam of retirements, having retired in each of the Slams, with the exception of the US Open.
But after the 2010 US Open, when he reportedly began to use the CVAC technology, Djokovic went 25-5 on the rest of the year, earning three wins against top 10 players. In 2011, he is 64-3, including a 20-2 record against top 10 players.
In 2011, Novak Djokovic seemingly overnight gained the ability to win 96% of his matches, an enormous difference from the respectable 78% win percentage he accumulated in 2010."
http://www.dropshotdispatch.com/2011/10/13/djokovics-cvac-conundrum-djokovics-controversial-training-method-examined/
"Many other players suffered after playing lengthy matches during the tournament. Gilles Simon admitted he was far less than 100% after his win over Gael Monfils. Blaz Kavcic, who nearly went five hours in a win over James Duckworth, hardly put up a fight in his next match against Jo-Wilfried Tsonga.
But like he did last year after he edged Andy Murray in five sets then won that incredible six hour epic over Rafael Nadal in the final, Djokovic appeared to show no ill effects from the Wawrinka match.
So the press asked Djokovic how he can recover so well when other players cannot. Here’s the exchange:
Q. Tomas just said he thinks you’re the fittest player on the tour at the moment. Do you feel like that?
NOVAK DJOKOVIC: Well, it’s flattering to hear that, definitely from Tomas.
Well, you know, I consider myself fit. I have a great team of people around me that are doing the best they can in their expertise to make me feel ready for physically, mentally, emotionally, every match, every challenge.
Obviously, it’s not easy to always be at your 100% fitness. But after a five hour match two days ago against Stan, I was quite convinced I could recover for this one.
The team did a great job.
Q. Gilles Simon played four hours and could barely move against Andy.
NOVAK DJOKOVIC: It all depends, of course, from the player and their respected routines that they do after the matches. We have certain kind of things that we do. It has been working in the past. It worked well this time also.
Q. What is that routine?
NOVAK DJOKOVIC: I can’t say that. Sorry. Have to keep it private.
Q. Do you know what other people do?
NOVAK DJOKOVIC: No. I know some. But most of the top players are keeping it private, and I think that’s the way it should be.
Q. Do you feel you do more recovery than other players do?
NOVAK DJOKOVIC: As I said, I mean, I don’t know what they do so I can’t really compare myself to them. I just try to respect the same kind of program of preparations and post match recoveries that has been respected from our team in last few years and has been working well for us.
Q. You can’t go into specifics, but has there been a bit of trial and error in how you have come up with the routine?
NOVAK DJOKOVIC: Even though it’s individual sport, the importance of a team effort is essential in this case. Definitely in the situations where you play a Grand Slam where you have to be ready for five hour matches, and then of course if you go through those matches you have to be ready to recover in just a day and a half time.
As I said, it worked before. We use that necessary experience to implement in this particular situation, and it worked again."
http://www.tennis-x.com/xblog/2013-01-22/11395.php