Effect of different ergonomic supports on muscle activity of dentists during posterior composite restoration
| Autor: | María P Escolar-Reina, Rodrigo Martín-San Agustín, Francesc Medina-Mirapeix, José A García-Vidal, Joaquín P. Sánchez-Onteniente, Manuel López-Nicolás, Juan D. Berná Mestre |
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| Rok vydání: | 2019 |
| Předmět: |
Anatomy and Physiology
Intraclass correlation Dentists lcsh:Medicine Magnification Electromyography Musculoskeletal disorders General Biochemistry Genetics and Molecular Biology 03 medical and health sciences 0302 clinical medicine Lumbar Erector spinae muscles Medicine 0501 psychology and cognitive sciences Muscle activity 050107 human factors Orthodontics medicine.diagnostic_test Physical therapy modalities business.industry General Neuroscience lcsh:R 05 social sciences Repeated measures design 030206 dentistry General Medicine Kinesiology Orthopedics Dentistry Public Health Ergonomics General Agricultural and Biological Sciences Trunk muscle business |
| Zdroj: | PeerJ, Vol 7, p e8028 (2019) PeerJ |
| ISSN: | 2167-8359 |
| DOI: | 10.7717/peerj.8028 |
| Popis: | BackgroundThe aim of this study was to evaluate the effect of different ergonomic supports on the muscle activity of two trunk muscles while a group of dentists performed a common dental procedure on a phantom head, divided into three tasks.MethodsA one-way repeated measures study (ANOVA) was conducted on a group of 36 dentists. The middle trapezius and lumbar erector spinae muscles were measured with and without the use of different ergonomic supports (ergonomic stool, magnification lenses and both) using a portable surface electromyography (sEMG) device. Intraclass correlation coefficients (ICCs) and the absolute standard error of measurement (SEM) were used to establish the reliability of the baseline measures without ergonomic supports.ResultsThe sEMG showed excellent ICCs (ranging from 0.92 to 0.99) and SEM. Bonferroni post hoc tests showed differences between the three ergonomic supports (p< 0.001) in both muscles studied. The lowest muscle activity measurement occurred with the isolated used of magnification lenses. The use of the ergonomic stool increased the muscle activity of the middle trapezius and lumbar erector spinae muscles to a greater extent than the magnification lenses. The combination of the ergonomic stool and the magnification lenses produced a different effect on each muscle. |
| Databáze: | OpenAIRE |
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