The Comparison of Hip Abductors with Hip External Rotator Muscles Fatigue on Static Standing Balance in Subjects with and without Patellofemoral Pain Syndrome

Authors

Abstract:

Purpose: The patellofemoral pain syndrome (PFPS) is one of the most common musculoskeletal disorders of the knee joint. Hip muscles’ weakness is one of the reasons for PFPS occurrence. The aim of this study was to recognize the effective muscle group in prevention and treatment of patients with PFPS. Methods: This is a prospective and quasi-experimental study in which 30 participants (15 healthy/15 patients) who were aged between 18 and 38 years were recruited through nonprobability simple sampling. Exhaustion process of hip abductors and hip external rotator muscles was performed using Delorme method in separate sessions with a rest interval of at least 48 hours. Then, the parameters of pressure center were measured on the anterior, internalexternal plates using Force Plate System. Results: Before the exhaustion process, parameters of the displacement length of the pressure center on the internal-external plate (P = 0.002) and the sum of the pressure center displacement length on the internal-external plate (P=0.052) were higher in the patients group. After the occurrence of fatigue in the abductor muscles of the control group, the sum of the pressure center displacement length on the internal-external plate (P = 00.1) and the velocity of the pressure center displacement length on the anterior plate (P = 0.001) and the internal-external plate (P = 0.016) were significantly increased. But in the patients group, all of the above mentioned parameters were decreased after fatigue in both the rotator muscles (P = 0.005, P = 0.054, P = 0.038) and the abductor muscles (P = 0.045, P = 0.005, P = 0.004). Conclusion: Before the induction of fatigue, patients had more postural swing than the control group. As the fatigue increased in the abductor and the external rotator muscles, the postural swing increased in the control group but decreased in the patients group. In healthy subjects, the fatigue of abductor muscles has a greater role in postural disturbance but there was no significant difference between the fatigue in abductor and rotator muscles in patients with PFPS.

Upgrade to premium to download articles

Sign up to access the full text

Already have an account?login

similar resources

Comparison of the effects of external instruction exercises in combination with hip-knee strengthening on gait kinematics in patients with patellofemoral pain syndrome: a randomized clinical trial.

Aims and Background: Patellofemoral pain syndrome is one of the most common musculoskeletal disorders, and is related to biomechanical factors of the lower extremities. The purpose of this study was to compare the effect of hip and knee strengthening with internal instruction exercises on pain and dynamic knee valgus in patients with Patellofemoral pain syndrom. Materials and Methods: 50 men a...

full text

Comparison of the Balance Indices of professional Athletes with and without Patellofemoral Pain Syndrome

Objective: The aim at this study was the comparison of balance indices between professional athletes with patellofemoral pain syndrome (PFPS) and healthy athletes. Materials & Methods: In this comparative and Case-Control study, 16 national teams’ male athletes who were selected purposefullyand 16 healthy national teams’ male athletes who were matched based on variables such as weight, heigh...

full text

The Effect and Durability of Hip and Core Exercises on Pain and Performance in Females With Patellofemoral Pain Syndrome

Purpose: Patellofemoral Pain Syndrome (PFPS) is among the most frequent knee problems in active individuals. PFPS is a multifactorial syndrome with various treatments. This study compared the effects of two training methods of central stability and hip on pain and performance among women with PFPS. Methods: In the present quasi-experimental study, 27 women with PPS aged between 20 and 30 years...

full text

The strength of hip abductor and external rotator muscles and ACL rupture in male soccer players

The purpose of this study was to compare of hip abductor and external rotator muscles strength between male soccer players with ACl rupture and healthy male soccer players. 30 male participants (15 soccer players with ACL rupture as sample group and 15 healthy soccer players as control group) participated in this study. Hip abductor and external rotator muscles strength tests including nor...

full text

The effect of hip abductors and external rotators strength training on kinematic of lower limb of patients with patellofemoral pain syndrom

Although hip muscle strengthening has been reported as an effective way to decrease PFPS symptoms, however its effect on lower extremity kinematics is less clear. The current study was done with the aim of investigating the effect of hip abductor and external rotator muscles strengthening exercises on lower extremity kinematics in static and dynamic states. In a randomized controlled trial, 33 ...

full text

To investigate the angular displacement of the hip and knee joints in girls with patellofemoral pain

Introduction: Increased fatigue causes injuries, the purpose of this article was to investigate the angular displacement of the hip and knee joints in girls with patellofemoral syndrome. Materials and Methods:  Thirty girls with an average age (age 28.73±1.83, height 168.49±5.59, weight 63.73±12.73) participated in this study in two groups of 15, experimental and control. The jet evaluati...

full text

My Resources

Save resource for easier access later

Save to my library Already added to my library

{@ msg_add @}


Journal title

volume 4  issue None

pages  47- 54

publication date 2014-04

By following a journal you will be notified via email when a new issue of this journal is published.

Keywords

Hosted on Doprax cloud platform doprax.com

copyright © 2015-2023