His records were unbeaten for decades , and he 's still running .
Naylor is the undisputed figurehead of the sport : a Cumbrian shepherd whose back was so impaired that he spent years in a special corset , before ignoring doctors ' orders and taking up running .
Naylor 's records were unbeaten for decades , and he 's still running .
Naylor is the undisputed figurehead of the sport : a Cumbrian shepherd whose back was so impaired that he spent years in a special corset , before ignoring doctors ' orders and taking up running .