Alternatively, World War II led to the popularization of pin-up girl posters, which men would often hang in their bunks while at war. As a result of this experiment, the researchers were able to conclude that as heel height increased, the sway velocity of the bodies increased which also modified the position of the knee joint. In , scientists from the Department of Physical Therapy in the Sahmyook University in Korea conducted a study to examine the effects of increased heel height and gait velocity on balance control.
White Single Sole Pump High Heels Patent The features for these single sole heels include a patent faux leather upper in a pump design, pointed closed toe, scoop vamp, smooth lining, and c The Persian cavalry , for example, wore a kind of boot with heels in order to ensure their feet stayed in the stirrups. The researchers also mentioned that the long term usage of high heels would lead to repetitive overstress of the joint which would result in an increase in pain and eventually, patellofemoral joint osteoarthritis and Patellofemoral pain syndrome.