Mobility in Medieval Plate Armor. This video shows that full plate allows one to stand up from a fall with relative ease. Perhaps the most infamous example is the notion that "knights had to be hoisted into their saddles with a crane," which is as absurd as it is persistent even among many historians. Misconceptions and Questions Relating to Armor. Armor was worn only by knights.Wrong. Women of earlier times never fought in battle or wore armor.—Wrong. Armor was so expensive that only princes and rich nobility could afford it.—Wrong. Armor is extremely heavy and renders its wearer immobile.—Wrong. Knights had to be hoisted into their saddles with cranes.—Wrong.