Exploratory Study on Central Sensitization and Bioelectrical Activity of the Selected Masticatory Muscles in Subjects with Myopia

Grzegorz Zieliński (), Anna Matysik-Woźniak, Michał Baszczowski, Maria Rapa, Michał Ginszt, Jacek Szkutnik, Robert Rejdak and Piotr Gawda ()
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Grzegorz Zieliński: Department of Sports Medicine, Medical University of Lublin, 20-093 Lublin, Poland
Anna Matysik-Woźniak: Department of General and Pediatric Ophthalmology, Medical University of Lublin, 20-093 Lublin, Poland
Michał Baszczowski: Interdisciplinary Scientific Group of Sports Medicine, Department of Sports Medicine, Medical University of Lublin, 20-093 Lublin, Poland
Maria Rapa: Students’ Scientific Association at the Department and Clinic of General and Pediatric Ophthalmology, Medical University of Lublin, 20-093 Lublin, Poland
Michał Ginszt: Department of Rehabilitation and Physiotherapy, Medical University of Lublin, 20-093 Lublin, Poland
Jacek Szkutnik: Independent Unit of Functional Masticatory Disorders, Medical University of Lublin, 20-093 Lublin, Poland
Robert Rejdak: Department of General and Pediatric Ophthalmology, Medical University of Lublin, 20-093 Lublin, Poland
Piotr Gawda: Department of Sports Medicine, Medical University of Lublin, 20-093 Lublin, Poland

IJERPH, 2023, vol. 20, issue 5, 1-15

Abstract: Background: Myopia is one of the most common eye disorders involving abnormal focusing of light rays. The studies recognize the association between the stomatognathic and visual systems. This compound may have a neurological basis associated with disorders such as central sensitization. The main aim of this study was to evaluate the influence of central sensitization on the bioelectrical activity of selected muscles of the masticatory organ in subjects with myopia. Methods: Selected masticatory and cervical spine muscles were analyzed using an eight-channel BioEMG III electromyograph. Central sensitization was analyzed using the central sensitization inventory. Results: Statistical analysis revealed significantly higher scores on the central sensitization inventory in subjects with axial myopia compared to subjects without refractive error. Repeated positive correlations were observed in the sternocleidomastoid muscle activity and negative correlations in the digastric muscle activity during open and closed eyes in myopic subjects. Conclusions: Subjects with myopia have an increased score in the central sensitization inventory. The increase in the central sensitization inventory score is connected with the changes within the electromyographic activity of the masticatory and neck muscles. The effect of central sensitization on masticatory muscle activity in myopic subjects requires further study.

Keywords: myopia; sEMG; vision; optometry; masticatory muscles; temporomandibular joint; central nervous system sensitization; neurology; central sensitization inventory; oral medicine (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2023
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