Fitzgerald also helps parents map a pathway for their children to team sports and becoming an integral cog in social circles.
Having arrived in New Zealand from England more than six years ago, she worked at Victoria University in Wellington.
Fitzgerald helped establish not only a gym but "something people wouldn't normally use".
The University of Gloucestershire graduate was several years ago attending tutorials involving three New Zealand tutors, who encouraged students to travel here. Five of them did.
"I want to do positive things in life and this is one of them," says the woman who plays football for the Petone club and is one of 10 Halberg advisers in the country.
The foundation is a charitable organisation which Olympic legend Sir Murray Halberg founded in 1963 in the belief that all people should have equal opportunity to enhance their lives through sport and recreation.