Ron Walker, the man widely credited with the success of the Australian Grand Prix, is likely to forego some of his usual Melbourne routine after having emergency brain surgery in the run-up to this weekend's event.

The 71-year old suffered a fall while cycling in Melbourne's Royal Botanic Gardens last month, but did not realise that his injuries extended beyond the expected broken bones. However, after finding himself unable to complete previously routine tasks, he decided to see if there was more to his concussion - suffered despite wearing a protective helmet - that he thought.

"I didn't have any headaches, but it came to a head last Saturday evening when I was going to the movies with my wife and I tried to do the button up on the shirt," he told Radio 3AW, "My brain was being ignored by my limbs. I couldn't do my buttons up... and, worst of all, I didn't know how to put my tie on."

A consultation with a neurosurgeon discovered a build-up of fluid on Walker's brain, which was causing the problem with his motor skills.

"They bored a hole in my skull and took the fluid out and I had to lay flat for a number of days," the former mayor of Melbourne recounted, "I was a tick away from a seizure, and that would have caused all sorts of complications in the brain. Some people don't recover, so I was very lucky indeed."

Despite the surgery, Walker insists that he will still be present at this weekend's second F1 round, although does not expect to be quite as active as in the past.

"I'm not going to walk 25 kilometres a day like I normally do," he joked.