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Titre : | Determining safe teaching board heights through electromyographic analysis of the shoulder muscles (2020) |
Auteurs : | Chidiebele Petronilla Ojukwu ; Chidimma Amarachukwu Nwankwo ; Adaora Justina Okemuo ; Sylvester Caesar Chukwu ; Chigozie Ikenna Uchenwoke ; Emelie Moris Anekwu ; Chinelo Jennifer Okafor |
Type de document : | Article |
Dans : | Journal of Bodywork and Movement Therapies (Vol. 24, n° 4, October 2020) |
Article en page(s) : | p. 575-580 |
Note générale : | doi:10.1016/j.jbmt.2020.08.006 |
Langues: | Anglais |
Descripteurs : |
HE Vinci Muscle deltoïde ; Muscles pectoraux |
Mots-clés: | Hauteur du tableau d'écriture ; Trapèze supérieur ; muscle dentelé antérieur |
Résumé : |
Background:
Adjustable teaching boards have been recommended as an ergonomic practice geared at reducing the incidences of teaching-related shoulder musculoskeletal disorders among teachers. However, there are no standards guiding choice of appropriate teaching board heights. This study was aimed at evaluating shoulder muscle activities in response to five teaching board heights. Methods: Thirty participants performed writing activities on five different board heights (Diff10 = standing height minus 10% of standing height; NormH = participant's standing height; Sum10 = standing height plus 10% of standing height; Sum20 = standing height plus 20% of standing height; Sum25 = standing height plus 25% of standing height). Electromyographic analysis of the anterior deltoid (AD), upper trapezius (UT), serratus anterior (SA) and pectoralis major (PM) muscles were performed simultaneously during each task. Data were analyzed with one-way ANOVA and independent T-test at p Results: Sum20 board height significantly (p Conclusion: Extremely high or low teaching boards have tendencies of inducing musculoskeletal shoulder discomforts. |
Disponible en ligne : | Oui |
En ligne : | https://login.ezproxy.vinci.be/login?url=https://www.sciencedirect.com/science/article/abs/pii/S1360859220301595#! |