A PARKINSON'S disease sufferer is today undertaking a mammoth challenge as part of his vow to raise cash for research into the condition.

In February, the Echo reported on Ian Clarkson, who was diagnosed with the disease nine years ago and who has pledged to raise as much money and awareness of Parkinson's as possible, before he is no longer physically able.

At 10am, the 53-year-old will attempt a sponsored walk around Lincoln Cathedral to raise money for Parkinson's UK.

During the first lap, he will be accompanied by the Bishop of Lincoln, the Right Reverend John Saxbee.

He will also be joined by former BBC weatherman John Kettley and Lincolnshire county councillor Robert Parker.

Mr Clarkson, who lives on the city's St George's estate, said the sponsored walk was going to be a challenge, like climbing a mountain.

He said: "It's going to be very hard. Walking and exercising is hard work when you have muscle pain.

"I'm going to be doing 20 laps, which will work out at around 700 metres a lap. So you're talking three or four miles after it's all over with.

"I just want to keep going. Through my fundraising efforts this year, I've raised £10,000.

"It's going to be a massive struggle though, and for me it'll be like climbing a mountain.

"Parkinson's to me is muscle pain and seizing up. It's going to get more difficult in the middle when my medication starts to wear off.

"It's different from most illnesses. You freeze when you're walking, and it stops you from doing whatever you're doing. You physically cannot move sometimes.

"But I'm determined. It's not just about raising money, but about raising awareness as well. It's important that more people know about Parkinson's.

"Every penny or pound I collect is another person who knows more about the disease."

Mr Kettley, who now lives in Lincolnshire, said he met Mr Clarkson at his fundraising events.

"He is a very determined man and it is getting harder for him to move around every month.

"Diseases like cancer, as bad as they are, tend to override other illnesses and debilitating conditions such as Parkinson's. So it is great that Ian is raising the profile of Parkinson's and how it can affect anyone with little warning."

Dr Saxbee said: "I'm anxious to do all I can to support Parkinson's UK and Ian in this imaginative venture.

"Parkinson's UK gives hope and support to many sufferers and I hope people will be very generous in their support."