利滋大学的一项研究报道认为中世纪时期的金属盔甲沉重得让士兵难以在沙场上作战，这也可能直接影响到战果。

 

As weapons became more and more sophisticated in medieval Europe armour¹ also evolved, and by the 15th century soldiers would have been clad top-to-toe in up to 50 kg of bulky steel.

 

Researchers have always suspected that this would have been tough to move around in. But now with the help of volunteers wearing replica² medieval armour - and a treadmill³ - they've been able to confirm this.

 

They found that walking or running in it used up huge amounts of energy, restricted breathing and bore intense pressure on the legs.

 

The effect was so great the team suspects it could have played a part in France's defeat in the battle of Agincourt.

 

In this famous conflict of 1415 - despite heavily outnumbering the English - the French were beaten.

 

The scientists say the fact that the French knights⁴ had to trek⁵ through a muddy field while wearing their heavy armour - to meet a stationary⁶ English line - would have left them so exhausted⁷, it probably led to their downfall.

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