Short- and Long-Term Influences of a Custom Foot Orthotic Intervention on Lower Extremity Dynamics

Conclusions: The 6-week intervention led to subjective changes, including a significant decrease in pain. An improvement in symptoms did occur with the 6-week intervention. In addition, dynamic results revealed that custom foot orthoses have an immediate effect on dynamics and that this influence occurs only when orthoses are worn in the footwear. The short-term CFO intervention led to significant decreases in rearfoot kinematics (maximum eversion angle and velocity) but no changes observed in knee kinematics. The kinetic analysis revealed that these subjects exhibited significant decreases in maxima for ankle inversion moment and angular impulse during the loading phase, impact peak, and vertical loading rate with short-term, CFO intervention. At the knee, the CFO condition led to increases in knee external rotation moment maxima and angular impulse.