RELATIONSHIP BETWEEN HIP MUSCLE STRENGTH AND THREE DIMENSIONAL KINEMATICS IN SUBJECTS WITH AND WITHOUT PATELLOFEMORAL PAIN SYNDROME

Research Abstract

CHAPTER VI SUMMARY, CONCLUSION AND RECOMMENDATIONS SUMMARY This attempt was made to study the relationship between the hip muscles strength and hip kinematics in subjects with and without PFPS with the hypothesis that the patients with PFPS would demonstrate lower hip abductors torque than the normal subjects and increased hip adduction and POA in patients with PFPS than the normal subjects. Therefore, twenty males were recruited to this study; 10 for the PFPS group and 10 for the control group. They were selected from the outpatient clinic of the Faculty of Physical Therapy. Their ages ranged from 18-40 years old with mean age (22 years) for the PFPS group and (22.4 years) for the control group. Both groups underwent hip abductors strength measurement using HHD then they underwent hip kinematic analysis for measuring hip adduction and pelvic obliquity angles during stance phase of stair descent. The data obtained in the present investigation indicated that, there were no statistical significant differences between the PFPS and the control groups regarding to hip abductors torque, hip adduction angle, and pelvic obliquity angle. Also there were weak relationship between hip abductors torque and both hip adduction and pelvic obliquity angles. CONCLUSION Both PFPS and control groups demonstrated similar hip abductors torque, hip adduction angle, and pelvic obliquity angle (POA). Also, there was weak correlation between hip abductors torque and both hip adduction and pelvic obliquity angles. RECOMMENDATIONS 1. This study measured hip abductors and hip kinematics during stair descent. This task was considered low activity demand so,it is recommended that hip kinematics will be measured during progressively greater task demands such that running, jumping, squatting,….etc. 2. It is recommended to measure the strength of the reminder hip groups of muscles. 3. Further researchers are needed to measure hip muscles activities –mainly gluteus medius- using electromyography (EMG) with hip kinematics simultaneously and applied for a larger sample size. 4. Further researches are needed to study the effect of adding hip muscles strengthening exersices on the pain and functional performance in patients with PFPS.

Research Keywords

RELATIONSHIP BETWEEN HIP MUSCLE STRENGTH AND THREE DIMENSIONAL KINEMATICS IN SUBJECTS WITH AND WITHOUT PATELLOFEMORAL PAIN SYNDROME