Document Detail

Voice changes during work: subjective complaints and objective measurements for female primary and secondary schoolteachers.
MedLine Citation:
PMID:  12395987     Owner:  NLM     Status:  MEDLINE    
The purpose of this investigation was to study voice changes during a working day. The subjects consisted of 33 female primary and secondary schoolteachers who recorded their first and last lessons during one school day. The subjects were studied both as one group and two subgroups (those with many and those with few voice complaints). Estimates of fundamental frequency (F0), sound pressure level (SPL), the standard deviations of these values (F0 SD; SPL SD) and F0 time (vibration time of vocal folds) were made. The most obvious change due to loading was the rise of F0 that was 9.7 Hz between the first and last lesson (P = 0.00). F0 increased more (12.8. Hz, P = 0.006) in the subgroup with few complaints.
Leena Rantala; Erkki Vilkman; Risto Bloigu
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of voice : official journal of the Voice Foundation     Volume:  16     ISSN:  0892-1997     ISO Abbreviation:  J Voice     Publication Date:  2002 Sep 
Date Detail:
Created Date:  2002-10-24     Completed Date:  2003-02-21     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8712262     Medline TA:  J Voice     Country:  United States    
Other Details:
Languages:  eng     Pagination:  344-55     Citation Subset:  IM    
University Central Hospital of Oulu, Finland.
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MeSH Terms
Noise / adverse effects*
Occupational Diseases / diagnosis*,  physiopathology
Severity of Illness Index
Vocal Cords / physiopathology
Voice Disorders / diagnosis*,  physiopathology
Voice Quality*

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