Effect of different ergonomic supports on muscle activity of dentists during posterior composite restoration
Background The 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. Methods A one-way repeated measures study (ANOVA) was con...
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PeerJ Inc.
2019-11-01
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| author | Manuel López-Nicolás José A. García-Vidal Francesc Medina-Mirapeix Joaquín P. Sánchez-Onteniente Juan D. Berná Mestre Rodrigo Martín-San Agustín María P. Escolar-Reina |
| author_facet | Manuel López-Nicolás José A. García-Vidal Francesc Medina-Mirapeix Joaquín P. Sánchez-Onteniente Juan D. Berná Mestre Rodrigo Martín-San Agustín María P. Escolar-Reina |
| author_sort | Manuel López-Nicolás |
| collection | DOAJ |
| description | Background The 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. Methods A 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. Results The 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. |
| first_indexed | 2024-03-09T08:10:03Z |
| format | Article |
| id | doaj.art-f4337ac31e1f46f2be6dd13ac3d70d89 |
| institution | Directory Open Access Journal |
| issn | 2167-8359 |
| language | English |
| last_indexed | 2024-03-09T08:10:03Z |
| publishDate | 2019-11-01 |
| publisher | PeerJ Inc. |
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| spelling | doaj.art-f4337ac31e1f46f2be6dd13ac3d70d892023-12-02T23:31:59ZengPeerJ Inc.PeerJ2167-83592019-11-017e802810.7717/peerj.8028Effect of different ergonomic supports on muscle activity of dentists during posterior composite restorationManuel López-Nicolás0José A. García-Vidal1Francesc Medina-Mirapeix2Joaquín P. Sánchez-Onteniente3Juan D. Berná Mestre4Rodrigo Martín-San Agustín5María P. Escolar-Reina6Department of Dermatology, Stomatology, Radiology and Physical Medicine, University of Murcia, Murcia, SpainDepartment of Physiotherapy, University of Murcia, Murcia, SpainDepartment of Physiotherapy, University of Murcia, Murcia, SpainDepartment of Ophthalmology, Optometry, Otolaryngology and Pathological Anatomy, University of Murcia, Murcia, SpainDepartment of Radiology, Virgen de la Arrixaca University Clinical Hospital, El Palmar, SpainDepartment of Physiotherapy, University of Valencia, Valencia, SpainDepartment of Physiotherapy, University of Murcia, Murcia, SpainBackground The 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. Methods A 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. Results The 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.https://peerj.com/articles/8028.pdfMusculoskeletal disordersErgonomicsElectromyographyPhysical therapy modalitiesDentists |
| spellingShingle | Manuel López-Nicolás José A. García-Vidal Francesc Medina-Mirapeix Joaquín P. Sánchez-Onteniente Juan D. Berná Mestre Rodrigo Martín-San Agustín María P. Escolar-Reina Effect of different ergonomic supports on muscle activity of dentists during posterior composite restoration PeerJ Musculoskeletal disorders Ergonomics Electromyography Physical therapy modalities Dentists |
| title | Effect of different ergonomic supports on muscle activity of dentists during posterior composite restoration |
| title_full | Effect of different ergonomic supports on muscle activity of dentists during posterior composite restoration |
| title_fullStr | Effect of different ergonomic supports on muscle activity of dentists during posterior composite restoration |
| title_full_unstemmed | Effect of different ergonomic supports on muscle activity of dentists during posterior composite restoration |
| title_short | Effect of different ergonomic supports on muscle activity of dentists during posterior composite restoration |
| title_sort | effect of different ergonomic supports on muscle activity of dentists during posterior composite restoration |
| topic | Musculoskeletal disorders Ergonomics Electromyography Physical therapy modalities Dentists |
| url | https://peerj.com/articles/8028.pdf |
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