Katherine Grainger has declared her intention to push towards a fifth consecutive Olympic medal in Rio in 2016.
Grainger, who will be 40 when the Games in Brazil come round, had considered retirement in the wake of her double sculls gold medal with Anna Watkins at London 2012.
However, after a two-year break from the sport, the Scot met GB Rowing’s deadline to report back for training this month.
Grainger, who was president of the Edinburgh University boat club and took up the sport while in the city in 1993, said: “I’m not really making long-term plans.
“A lot has to go well and fall into place. I have to get my fitness and my boat feel back and make sure I’m mentally where I want to be.
“The end point would be going all the way through to Rio, but I’m not making a commitment to that one just yet.”
Grainger had won three straight silver medals prior to her famous win with Watkins on home water.
But she will have to find a new partner, with Watkins having ruled out competing in Rio following the birth of her son.