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The way your feet land when you run can cause serious injuries. Photo Credit iStock/Halfpoint. Underpronation, also known as supination, is a foot-positioning problem encountered by runners and other athletes who run during their sport.
What is Underpronation? Under pronation, also referred to as supination, occurs when the foot rolls outwards at the ankle. Some under pronation is normal during movement or when exercising. However, when this type of movement becomes excessive, it may generate severe pain as well as damage to the tissue in the feet. The most common symptoms of underpronation are pain through the arch of the foot or pain in the heel. In some cases, under pronation can also cause back pain and knee pain.