- Gossage is a cancer doctor by qualification
- Is now one of the world's best at Ironman
- Broke her collarbone just two months ago
- But lines up for the World Championships
(CNN)Lucy Gossage is an expert in suffering.
A cancer doctor by qualification, she has also become a specialist in the brutal discipline of Ironman, which consists of a 3.86-kilometer swim (2.4 miles), a 180.25km bike ride (112 miles) and a marathon to finish.
On Saturday, she will line up against the best in the world in Hawaii for the World Championships.
But she makes it clear that the pain barriers in the medical and sporting fields are worlds apart.
"I think the thing I find helpful when I'm hurting in competition is that I'm choosing to suffer," she tells CNN via a telephone interview from Kona just 48 hours before the race.
"There are a lot of people, including cancer patients, that go through pain but don't have a choice.
"I have a choice, I can make it stop. I'm doing it because I want to do it. The pain is simply proof that I'm doing it to the best of my ability."
Lucy Gossage #downbutnotout
That Gossage will be on the start line at all is a testament to her propensity to withstand pain, competing in the most punishing of events just two months after breaking her right collarbone after a bike accident in training.