Medieval suits of armour were so exhausting to wear that they could have affected the outcomes of famous battles, a study suggests.
Scientists monitored volunteers fitted with 15th Century replica armour as they walked and ran on treadmills. They found that the subjects used high levels of energy, bore immense weight on their legs and suffered from restricted breathing.
The research is published in the Proceedings of the Royal Society B. The effect of the heavy armour was so great, that the researchers believe it may have have had an impact on the Battle of Agincourt.