THE ADDED EFFECT OF HIP ADDUCTION TO LEG PRESS ON PATELLAR REALIGNMENT- A COMPUTED TOMOGRAPHY STUDY

  • C-Y Song
  • Y-F Lin
  • T-C Wei
  • M-H Jan
Keywords: patella, leg press, computed tomography

Abstract

The purpose of this study was to explore the probable added effect of hip adduction to leg press exercise training on patellar realignment in patients with patellofemoral pain. Twelve women and five men with age between 21 to 53 yrs participated the study. Triweekly leg press with hip adduction (LPHA) or leg press (LP) training was randomly performed for 8 weeks. An axial CT imaging of patellofemoral joint was performed without and with maximal quadriceps isometric contraction at full knee extension to determine the patella tilt angle of Sasaki and bisect offset index before and after the training period. 10cm-VAS was also measured for pain. No differences in patellar alignment were found with quadriceps relaxed or contracted following LPHA or LP while significant pain reduction was shown. Hip adduction had no added effect on patellar realignment.