A RETIRED banker is attempting to become the first man over the age of 60 to run the entire coastline of mainland Britain.

He will be completing the equivalent of 200 marathons in 200 days, while researchers at the University of Exeter monitor the impact on his body.

Steve James, 65, set off from Topsham, Devon, on Wednesday, April 16, supported by his wife and their five children, and is aiming to return there after seven months of consecutive days of running anticlockwise around the coast.

He will take around six hours each day, sometimes supported by his wife in a camper van, and sometimes staying in a variety of accommodation.

Exeter’s sport and health science researchers will be monitoring Steve throughout the challenge.

Steve, who lives and trains daily on Dartmoor, said: “By the end of this challenge, the scientists will have more insight into how far a 65-year-old person can push their body!

“Of all the challenges I’ve done, this is the most extreme and the biggest stretch – there’s no guarantee how far I will get – I might collapse after 10 days!

“It’s going to be a real test of resilience, and of my ability to keep going through pain.”

The Exeter research team assessed Steve before his departure, and will monitor him throughout his trip, while Steve captures his own measurements on a daily basis for them to analyse. They are looked at taking blood, oxygen and muscle measurements to examine the effect of such an extreme sport on the body.

Dr Freyja Haigh, sports and health science researcher at the University of Exeter, said: “We’re delighted to work with Steve on this amazing feat, which really challenges the stereotypes of aging and redefines what’s possible later in life.

“In our research we’re often working with large groups of participants, so we can control conditions and see what patterns emerge.

“You can’t do that when it comes to the extremes. Monitoring Steve gives us a real insight into how this type of endurance affects the body of an older person – and whether there are both positive and negative effects.”

Throughout his life, Steve has loved physical challenges, from taking part in Ten Tors while at school, to cycling around the world in 220 days in 2019.

The record for running the British coastline is held by Nick Butter, who completed the feat in 128 days at the age of 31. Now that he has set off, Steve has become the first person over the age of 60 to take on the feat.

To prepare, Steve has been running daily with a tight control on his diet.

“I’m just running one marathon today then I’ll think about tomorrow,” he said.

“You’ve got to break it down, if you think about the whole thing, you’ll go mad.”

Head to Facebook or Instagram to follow Steve on his adventure as Banker on the Run. You can also support his exploits by donating to his JustGiving page raising money for Cancer Research UK.