LONDON â A former British army soldier on Saturday stormed into the record books by breaking the world treadmill record after seven gruelling days on the run. Mike Buss, 35, from Swindon, outside London, clocked up 517.25 miles (832.4 kilometres) breaking the previous record of 468 miles (753 kilometres) in his week-long attempt. The former army physical training instructor had been running up to three marathons a day on a treadmill in Swindon's Brunel Shopping Centre, sleeping two hours per day. He is raising money for a charity which helps injured British service personnel. "I was always looking at hitting the 500 mark so to go 17 miles further is brilliant," he said. "I've lost two toenails, my legs are aching and the arches of my feet are painful after hitting the treadmill for more than 20 hours a day but I feel good. "I'm going home to have a bath, then have beef stew for dinner and chill out," he said.