Correlation of foot posture with balance and pelvic tilt in healthy runners

Abstract

IntroductionThe purpose of the study was to find out the relationship of hyper-pronated foot with anterior pelvic tilt and dynamic balance in recreational runners. Hyper-pronated foot is a functional deformity which mainly affects the total body kinematic chain during dynamic weight-bearing events such as running when the foot lands on the ground. Furthermore, individuals with hyper-pronated foot may exhibit anterior pelvic tilt owing to the biomechanical relations, which alters balance as well. Runners with hyper-pronated feet are at high risk of injury, possibly because of larger torque generated at the lower limb.MethodsA cross-sectional study was conducted in 55 healthy recreational runners with hyper-pronated foot aged 19–30 years. They were assessed by foot posture index for hyper-pronated foot, Star Excursion Balance Test for dynamic balance evaluation, and the photogrammetry method to determine the anterior pelvic tilt angle.ResultsThe results revealed a poor correlation between foot posture index and dynamic body balance (<i>r</i> = 0.23) and a moderate correlation between foot posture index and anterior pelvic tilt angle (<i>r</i> = 0.47).ConclusionsThere was no significant correlation of foot posture index with dynamic body balance, whereas a minimal correlation was found between foot posture index and the anterior pelvic tilt angle. Therefore, hyper-pronated foot does not significantly directly influence balance or posture.