A person's anaerobic threshold has been reached when their body is under extreme conditions and the burning of oxygen can not keep up with the body's demands.
Novak Djokovic captured his second straight Wimbledon title and the third of his career by defeating Roger Federer 7-6, 6-7, 6-4, 6-3 in Sunday's men's final at the All England Club. Djokovic is the first man to repeat as Wimbledon champion since Federer won five in a row between 2003 and 2007.
Roger Federer looking spry at 33. On July 2, 2015. In the Wimbledon finals this weekend, two of the older players on tour have a shot at winning titles. Serena Williams, who is 33 years old, will play 21-year-old Garbine Muguruza on Saturday in the womenâs final. And on Sunday, Roger Federer, who is also 33, will play 28-year-old Novak Djokovic.