If running a marathon sounds like a daunting feat, try covering 26 miles in freezing February weather through hills, mud and streams -- while carrying a 60-pound backpack.
On Monday, that's just what Paddy Doyle, a former paratrooper and amateur boxer from Birmingham City, U.K., did to...
achievements
backpack
challenging terrain
endurance
fitness
guinness world records
marathon
milestones
one-armedpush-ups
paddy doyle
pain barrier
physical limits
push-ups
record holders republic
records
royal leamington spa
speed march
strength
training
warwickshire
