Board Thread:Suggestions forum/@comment-46.113.154.29-20181026224514/@comment-26890432-20181027011518

It's a very common and very erroneous misconception that medieval knights and soldiers could not move well in plate armour. Contrary to popular belief, it was quite well designed (why would they use it if this was not the case?) and allowed the user to perform a full  tasks ranging from climbing, running, and jumping. In fact, a case can be made that a the weight of a plate harness is more evenly distributed than a set of mail, which would rest primarily on the shoulders.

"Modern experiments with genuine fifteenth- and sixteenth-century armor as well as with accurate copies have shown that even an untrained man in a properly fitted armor can mount and dismount a horse, sit or lie on the ground, get up again, run, and generally move his limbs freely and without discomfort." (Heilbrunn Timeline of Art History, Metropolitan Museum)

The miconception of armour immobility likely stems from modern fantasy "stat modifiers" in tabletop and videogames, or misidentifying jousting tournament harnesses as combat suits of armour.