There is an ongoing debate in the literature regarding the relationships between static foot posture, dynamic foot function, and lower limb musculoskeletal disorders. 1,2 One reason for this debate is the common confusion between foot posture, which is static, and foot function, which is dynamic. 3 Foot pronation (FP) designates a movement of the whole foot. 4 It has been defined as "a range of motion within the foot that makes the foot more prone to the support surface that is greater than that required by the individual to adjust to morphology or to adapt to the forces placed in the musculoskeletal system by kinetic and kinematic events within gait or another given action." 3 A few studies have evaluated the effect of different types of foot function on gait kinematics. Foot pronation is commonly associated with the flat foot (FF) static foot posture, 3 and several studies have reported a relationship between FP and FF. 5,6 The static FF posture has