From the CBC piece:
As Olympic athletes go faster, higher and further, they take greater risks that can lead to more traumatic injury and overuse injuries, says Dr. Julia Alleyne, chief medical officer for the 2015 Pan Am/Parapan Am Games.
It isn’t so much modern science that helps athletes return quickly when injured during competition and keep going, but their own motivation, says Alleyne, who has worked with Canadians during five Olympic Games.
“There’s really no medical intervention there,” says Alleyne. “That is totally the athlete’s resilience, their drive to compete, their ability to override pain signals and how they cope in the moment. We’ve seen that over and over again that an athlete will do a wonderful competition and then at the finish line collapse. On the podium be limping.”