Two gym fanatics have broken an impressive world record through a mammoth physical challenge.

Adam Harrison, 29, from Walney Island and Greg Crabtree, 30, from Barrow, tested their physical limits yesterday as they underwent a100,000 metre ultra marathon world record attempt.

Instead of a conventional treadmill, however, the pair used an indoor ski machine as their medium to smash the former world record.

This previously stood at six hours 19 minutes, however, the gym-goers completed the challenge in six hours 15 minutes.

Mr Harrison is well accustomed to testing his physical limits, having successfully completed 14 marathons in two weeks over the Christmas period.

Starting on December 19, he rowed or skied 42,195m each day to raise money for St Mary’s Hospice in Ulverston, raising an incredible £5,000 for the charity.

Mr Harrison said: "I'd love to do more fundraising in the future, especially for a great cause like St Mary's Hospice but to be able to some friendly competition like this is great too.

"This is just a personal desire to break the record and be the best.

"It's a bit of friendly competitiveness which tests our determination and fitness levels."

Mr Crabtree, who works at BAE, spoke about the training required for such a mammoth challenge.

He said: "We've been doing some morning training sessions leading up to the event as well as our normal regular training.

"After breaking the record for the fourteen marathons across fourteen days, we both wanted to try and break another and just decided to go for it.

"We still want to do some more in the future but we're just focussing on recovering from this one for now."

"We've definitely got a few things lined up in the future in terms of fundraising.

"It's great to be able to do things together as well as enjoy ourselves at the same time."

The pair completed the challenge in tandem, completing four minutes on the machine then swapping roles.