Although patellofemoral pain (PFP) is one of the most common musculoskeletal disorders, the clear aetiology behind it remains unknown. One of possible factors could be increased hip adduction and internal rotation caused by weak hip abductors and external rotators. A recent systematic review assessed the effectiveness of trunk, hip and knee exercise programs for pain relief, functional performance and muscle strength in PFP. The aim of our study was to critically evaluate this systematic review using the updated PRISMA checklist. The authors adequately described the relationship between hip and knee muscles and PFP, but insufficiently linked the condition to trunk muscles throughout the review. Overall the methods used were satisfactory, however the methods used to assess risk of bias due to missing results and certainty in the body of evidence for outcomes were not reported and therefore not presented in the results or debated in the discussion. Few discrepancies were found between the text and presented tables. The results of conducted meta-analysis were sufficiently presented in included forest plots or can be accessed through links in the review as publicly available supplementary figures. Possible extraction of data on description of exercises used in programs could further improve the synthesis. The discussion on effectiveness of hip and/or knee exercise programs on pain relief and functional performance was adequate, meanwhile the discussion was insufficient for effect on muscle strength. The review was satisfactorily conducted with few items not reported or reported insufficiently due to discrepancies between the former and updated PRISMA statement. Keywords: Patellofemoral pain; Exercise programs; Critical appraisal; PRISMA checklist
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