This improper alignment could then lead to structural and functional problems in walking and standing and could also increase one’s susceptibility to injuries of the lower extremities (Kaufman et al., 1999).  How greatly does hyperpronation of the feet affect the alignment of the hips?  To determine how improper alignment of the feet affects the alignment of the hips, eight female subjects stood in the following four different standing positions: flat feet on the floor, on a wedge angled at ten degrees, on a wedge angled at fifteen degrees, and on a wedge angled at twenty degrees.  Markers were placed on the subject’s iliac crest and pictures of subjects were taken from the front to measure the displacement of the iliac crest from the control position, flat feet.  Dartfish was used to measure the hip angles. Increased degrees (15 and 20 degrees) of foot hyperpronation had the greatest effect on the pelvic alignment (mean pelvic movement at 15 degrees was three ± .93 degrees, at 20 degrees mean pelvic movement was three ± .93 degrees).  These results support the kinetic chain theory which states that the extremities all work as a system of sequential links.