Pourahmad F, Daneshjoo A, Mousavi Sadati S K. The Effect of Resistance Training on Lower Extremity Pain, Strength and Kinematical Parameters in Women With Patellofemoral Complications. PTJ 2021; 11 (4) :217-226
URL:
http://ptj.uswr.ac.ir/article-1-509-en.html
1- Department of Physical Education, Faculty of Humanities, East Tehran Branch, Islamic Azad University, Tehran, Iran.
Abstract: (2210 Views)
Purpose: The aim of this study was to evaluate the effect of strengthening the abductor and external rotator of the hip joint muscles on pain, thigh muscle strength, and lower limb kinematics in volleyball players with patellofemoral complications.
Methods: Twenty-four volleyball players with patellofemoral pain were randomly divided into the experimental and control groups. The experimental group received three sessions of strengthening exercises for the abductor muscles and external rotators of the hip joint using Traband for eight weeks. The control group received no training intervention. The pain was assessed by visual acuity scale, hip muscle strength by hand dynamometer, and lower limb kinematics using video analysis before and after the intervention. Samples included volleyball players with patellofemoral pain who had pain in one or both knees. If the pain was bilateral, the exercises were performed bilaterally on both lower limbs, but measurements were taken only from the lower extremity, which was most in pain. Analysis of covariance was used by SPSS software for statistical analysis.
Results: The results of this study showed that after training, in the experimental group, pain decreased and the strength of the abductor’s muscles and external rotator of the hip joint muscles increased. Knee dynamic valgus and pelvic drop were observed in single-leg squat only in the experimental group.
Conclusion: The results showed that the strengthening of the hip joint can decrease the pain of volleyball players with patellofemoral, increase the strength of the muscles and change the kinematics of the lower limbs on the frontal plane, and this can be the mechanism of the effect of this intervention on the symptoms of pain.
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● Strengthening of the hip joint can decrease the pain of volleyball players with patellofemoral complications
and change the kinematics of the lower limbs on the frontal plane after eight weeks of thigh muscle resistance training.
Plain Language Summary
Recent studies have recommended the probable role of femoral muscle weakness in creating this complication and adding hip strength to conventional knee muscle training for the treatment of these patients. Each study specifically has measured the effect of a method on treatment, while the newest approaches in the treatment of patients with patellofemoral pain are more orthosis, prosthesis, reinforcement training, and tensile training. The effect of reinforcement exercises on the strength, pain, and kinematics of lower limbs of women with patellofemoral complications has been examined. Understanding factors, such as thigh muscle weaknesses may play an important role in the occurrence of patellofemoral pain syndrome. However, so far, this muscle has been not widely considered in therapeutic protocols. The mentioned study also examined the effect of the strengthening of these muscles in therapeutic protocols and contradictory results were achieved. Thus, we decided to consider the effect of reinforcement exercises on the pathway of the patellofemoral joint and control this multi-factor syndrome. The results of this study showed that after training, in the experimental group, pain decreased and the strength of the abductor’s muscles and external rotator of the hip joint muscles increased. Knee dynamic valgus and pelvic drop were observed in single-leg squat only in the experimental group.
Type of Study:
Research |
Subject:
Special Received: 2021/07/2 | Accepted: 2021/09/11 | Published: 2021/10/1