title: Musculoskeletal Pain and Occupational Variables in Teachers With Voice Disorders and in Those With Healthy Voices-A Pilot Study.
abstract: OBJECTIVE
  This study aimed to compare musculoskeletal pain perception in teachers with voice disorders and in those with healthy voices, and to investigate the relationship between musculoskeletal pain and occupational variables (ie, work journey per week and working period).
  
  
  METHODS
  Forty-three classroom teachers were divided into two groups: dysphonic group (DG), 32 classroom teachers with voice complaints and voice disorders; and non-DG, 11 classroom teachers without voice complaints and who are vocally healthy. The musculoskeletal pain investigation survey was used to investigate the frequency and intensity of the pain. Occupational variables, such as work journey per week and working period, were investigated by the Voice Production Condition-Teacher questionnaire. The statistical tests used were the Spearman correlation (P ≤ 0.05) and the Mann-Whitney U test (P ≤ 0.05).
  
  
  RESULTS
  There was no difference between the frequency and the intensity of musculoskeletal pain regarding dysphonia. Work journey per week was positively related to the frequency and the intensity of laryngeal pain in the DG. The working period had a negative relationship to the frequency and the intensity of musculoskeletal pain in the submandibular region in the DG.
  
  
  CONCLUSIONS
  Classroom teachers with voice disorders and those with healthy voices do not have differences regarding the frequency and the intensity of musculoskeletal pain. Besides dysphonia the pain is an important symptom to be considered in classroom teachers. The occupational variables contributed to the presence of musculoskeletal pain in the region near the larynx, which appears to be directly proportional to work journey per week and inversely proportional to the working period.
authors.affiliation: Department of the Bauru School of Dentistry, University of São Paulo-FOB/USP, Bauru, São Paulo, Brazil.
authors.forename: Jhonatan
authors.initials: J
authors.lastname: da Silva Vitor
authors.affiliation: Department of the Bauru School of Dentistry, University of São Paulo-FOB/USP, Bauru, São Paulo, Brazil.
authors.forename: Larissa Thaís Donalonso
authors.initials: LTD
authors.lastname: Siqueira
authors.affiliation: Department of the Bauru School of Dentistry, University of São Paulo-FOB/USP, Bauru, São Paulo, Brazil.
authors.forename: Vanessa Veis
authors.initials: VV
authors.lastname: Ribeiro
authors.affiliation: Department of the Bauru School of Dentistry, University of São Paulo-FOB/USP, Bauru, São Paulo, Brazil.
authors.forename: Janine Santos
authors.initials: JS
authors.lastname: Ramos
authors.affiliation: Department of the Bauru School of Dentistry, University of São Paulo-FOB/USP, Bauru, São Paulo, Brazil.
authors.forename: Alcione Ghedini
authors.initials: AG
authors.lastname: Brasolotto
authors.affiliation: Department of the Bauru School of Dentistry, University of São Paulo-FOB/USP, Bauru, São Paulo, Brazil. Electronic address: kellysilverio@usp.br.
authors.forename: Kelly Cristina Alves
authors.initials: KCA
authors.lastname: Silverio
mesh_terms: D000328:Adult; D001938:Brazil / Q000453:epidemiology; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D059352:Musculoskeletal Pain / Q000150:complications* / Q000453:epidemiology / Q000523:psychology; D016273:Occupational Exposure; D058748:Pain Perception; D010865:Pilot Projects; D011446:Prospective Studies; D000070777:School Teachers / Q000523:psychology / Q000706:statistics & numerical data*; D014186:Transportation; D014832:Voice Disorders / Q000150:complications* / Q000523:psychology
keywords: Dysphonia; Evaluation; Musculoskeletal pain; Occupational health; Voice