Just how tiring is heavy medieval armor? How much does a load slow down climbing? If you’re the type who appreciates a bit of realism in your RPG action, here’s what recent research and an anecdotal report have to say about those questions. Heavy metal: Walking in plate armor Quite a few months back, a study published by The Royal Society B looked at the effects of medieval armor on physical performance (BBC summary here). No one should be surprised by its finding of “hey, heavy armor is tiring!”. But the researchers’ detailed approach of measuring actual energy consumption under controlled treadmill conditions yields some quantitative crunchiness for the consideration of…