This patent was just granted: SYSTEM FOR CALCULATING FOREFOOT WEDGE ANGLE TO CORRECT PRONATION/SUPINATION Quote: Systems and methods for forming a forefoot wedge insert are described for a piece of footwear, such as but not limited to ice skating boots, for correcting a pronation and/or supination condition wherein the insert permits the subtalar joint of the affected foot to be placed and/or maintained in a neutral position.

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Patent for system to correct pronation/supination in ice skating