Patellofemoral pain syndrome (PFP) is a chronic injury seen in both the athletic and clinical setting. Because the cause of PFP is multifactorial, health professionals need to consider muscle activity differences in women with PFP compared to healthy controls to better diagnose, prevent, and rehabilitate this injury. Therefore, the aim of this study was to examine muscle activity differences during functional movements in women (N = 21) with PFP and their pain-free counterparts. Surface electromyography (sEMG) of the musculus gluteus medius (GMED), musculus gluteus maximus (GMAX), musculus abductor longus (AL), and the musculus tensor fasciae latae (TFL) in women diagnosed with PFP (n = 9; Age = 25.99 ± 8.4 years) and pain-free controls (n = 12; Age = 23.5 ± 6.5 years) during the forward lunge, lateral step down, and single leg squat. Peak muscle activity of the GMED, GMAX, and AL were not significantly different between groups for any movement; however, peak TFL activity was significantly higher in the PFP group during the descent phase (p = .015), and ascent phase (p = .010) of the forward lunge. In addition, peak TFL activity was significantly higher in the PFP group during the descent phase of the lateral step down (p = .042) and the ascent phase (p = .046) of the single leg squat. Women with PFP demonstrated higher peak TFL activity during functional movements. The results of this study provide critical information for healthcare and fitness professionals that can guide clinical assessments and treatment outcomes for individuals with PFP.
The study was approved by Middle Tennessee State University’s Institutional Review Board (IRB) and it was carried out in accordance with the Code of Ethics of the World Medical Association also known as a declaration of Helsinki.
Primary Language | English |
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Subjects | Motor Control, Rehabilitation |
Journal Section | Original Research Articles |
Authors | |
Early Pub Date | January 20, 2025 |
Publication Date | February 28, 2025 |
Submission Date | October 21, 2024 |
Acceptance Date | January 8, 2025 |
Published in Issue | Year 2025 Volume: 11 Issue: 1 |