Document Type : Original Research

Authors

1 PhD, Student Research Committee, School of Rehabilitation Sciences, Shiraz University of Medical Sciences, Shiraz, Iran

2 PhD, Department of Physical Therapy, School of Rehabilitation Sciences, Shiraz University of Medical Sciences, Shiraz, Iran

3 PhD, Rehabilitation Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran

4 MD, PhD, Neuroscience Center, Instituto de Investigaciones Cientificas y Servicios de Alta Tecnología (INDICASAT AIP), City of Knowledge 084301103, Panama

5 MD, PhD, Neuroscience Laboratory, NSL (Brain, Cognition and Behavior), Department of Neuroscience, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran

6 MD, PhD, Dana Brain Health Institute, Iranian Neuroscience Society-Fars Chapter, Shiraz 71364-76172, Iran

7 MD, PhD, Academy of Health, Senses Cultural Foundation, Sacramento, CA 66006, USA

8 MD, PhD, Department of Cognitive Neuroscience, Institute for Cognitive Science Studies (ICSS), Pardis, Tehran 1658344575, Iran

9 MD, PhD, Department of Neuroscience, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran

10 PhD, Neuroscience Laboratory, NSL (Brain, Cognition and Behavior), Department of Neuroscience, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran

11 PhD, Dana Brain Health Institute, Iranian Neuroscience Society-Fars Chapter, Shiraz 71364-76172, Iran

Abstract

Background: Quantitative Electroencephalography (QEEG) is a tool helping better understand the electrical activity of the brain and a non-invasive method to assess cortical activity. To date, the brain activity of patients with chronic patellofemoral pain (PFP) has not been investigated.
Objective: The current study aimed to investigate the effect of PFP on higher levels of the central nervous system by assessing the correlation between QEEG and modified excursion balance test (mSEBT) in patients with PFP.
Material and Methods: Twenty-two patients with chronic PFP participated in this observational study. Their cortical electrical activity was recorded in a resting state with their eyes open, via a 32-channel QEEG. C3, C4, and Cz were considered as regions of interest. In addition to QEEG, the balance performance of the participants was evaluated via mSEBT.
Results: The obtained findings revealed a negative and moderate to high correlation between theta absolute power and posteromedial direction of mSEBT in C4 (P: 0.000, r: -0.68), Cz (P: 0.001, r: -0.66), and C3 (P 0.000, r: -0.70). Additionally, a significantly close correlation is between alpha absolute power in C3 (P: 0.001, r: -0.70), C4 (P: 0.000, r: -0.71), and Cz (P: 0.000, r: -0.74) and the posteromedial direction of mSEBT. No significant correlations were between the other two directions of mSEBT, alpha, and theta.
Conclusion: According to our results, balance impairment in patients with chronic PFP correlated with their QEEG neurodynamics. Moreover, our findings demonstrated the efficiency of QEEG as a neuromodulation method for patients with PFP.

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