Volume 12, Issue 1 (Winter 2022)                   PTJ 2022, 12(1): 13-22 | Back to browse issues page


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1- Department of Sports Rehabilitation, Faculty of Physical Education and Sport Sciences, Bu-Ali Sina University, Hamadan, Iran.
2- Department of Corrective Exercises and Sports Injury, Faculty of Physical Education and Sport Sciences, Bu Ali Sina University, Hamedan, Iran.
Abstract:   (378 Views)
Purpose: Higher loading rates have been associated with injuries, plantar fasciitis, tibia bone stress injuries, knee osteoarthritis, and patellofemoral pain (PFP). The aim of this study is to evaluate the loading rate in PFP patients compared to healthy individuals during weight bearing tasks.
Methods: Search strategy was conducted in databases: Science Direct, Scopus, PubMed and Google Scholar. The outcome measuring: loading rate were during weight bearing tasks. The quality of the studies was evaluated by Down and Black index and it was divided into three groups: low quality (LQ), medium quality (MQ) and high quality (HQ). The standardized mean difference between PFP patients and healthy individuals was used to calculate the effect size.
Results: Seven articles were included of that 4 studies was HQ and 3 MQ were classified. The no significant difference between PFP patients and healthy individuals in the loading rate (p=0.52) ; But strong evidence with medium effect size (SMD=0.50; 95% CI=[-1.01 to 2.00]) indicates a tendency to increase loading rates in PFP patients compared to healthy individuals.
Conclusion: The compensatory mechanism in PFP patients, decrease of active shock absorption which finally leads to higher loading rates that can have effect on the tibiofemoral joint that correlating to the development of pain and knee osteoarthritis. 
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Type of Study: Research | Subject: Special
Received: 2021/12/8 | Accepted: 2022/01/18 | Published: 2022/01/1

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