Quinn, part of the team that helped Pat Cash  in his successful bid to win the 1987 Wimbledon singles title, is the last of the original appointees made in April 2006 by Lawn Tennis Association (LTA) chief executive Roger Draper, the chief executive, to leave the governing body.

Steven Martens, the LTA's Player Director, said: "I would like to thank Ann for her contribution to British tennis through her work to establish sports science, both at the National Tennis Centre and around the country.

"This system is now well embedded and plays a crucial role in supporting talented players as part of their overall development. Ann has also provided much valuable advice to support wheelchair performance players."

Quinn, whose three year contract with the LTA  has come to an end, is returning to spend more time in her native Australia.

She will continue to do some consultancy to help wheelchair players in preparing for this month's Australian Open and other tournaments.

Sports science, now an integral function within British Tennis, will continue within the player team under the direction of Martens as part of the integrated approach to player support and development.