The vocal aerodynamic change in female patients with muscular tension dysphonia after voice training.
OBJECTIVE
To investigate the changes of vocal aerodynamics indicators after voice training in female patients with muscular tension dysphonia (MTD).


METHODS
Twenty-one female MTD patients (before voice training and 12 weeks after voice training) and 20 female volunteers with normal voices (the control group) received vocal aerodynamic analysis. Parameters included subglottal pressure (SGP), aerodynamic power (AP), mean expiratory airflow (MEA), and maximum phonation time (MPT) were recorded and analyzed by phonatory aerodynamic system.


RESULTS
Before voice training, the median SGP and mean AP were higher than control group, whereas median MPT was shorter, and these differences were statistically significant. After 12 weeks of voice training, the median SGP and mean AP were decreased and the median MPT was increased compared with the measurements obtained before training, and these differences were statistically significant. The differences of median SGP, mean AP, mean MEA, and median MPT between MTD after 12 weeks of training and control group were not statistically significant.


CONCLUSIONS
Voice training is an effective treatment for MTD patients. Aerodynamic analysis can effectively evaluate the vocal functional status of MTD patients before and after training, which is beneficial for the treatment efficacy evaluation.
Department of Otorhinolaryngology-Head and Neck Surgery, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, People's Republic of China.
Fa-Ya
FY
Liang
Department of Otorhinolaryngology-Head and Neck Surgery, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, People's Republic of China.
Jin-Shan
JS
Yang
Department of Otorhinolaryngology, The First Affiliated Hospital of Henan University of Traditional Chinese Medicines, Zhengzhou, People's Republic of China.
Xiang-Sheng
XS
Mei
Department of Otorhinolaryngology-Head and Neck Surgery, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, People's Republic of China.
Qian
Q
Cai
Department of Otorhinolaryngology-Head and Neck Surgery, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, People's Republic of China.
Zhong
Z
Guan
Department of Otorhinolaryngology-Head and Neck Surgery, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, People's Republic of China; Department of Otorhinolaryngology, The First People's Hospital of Shunde, Foshan, People's Republic of China.
Bi-Ru
BR
Zhang
Department of Otorhinolaryngology-Head and Neck Surgery, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, People's Republic of China.
Ya-Jing
YJ
Wang
Department of Otorhinolaryngology-Head and Neck Surgery, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, People's Republic of China.
Jian
J
Gong
Department of Otorhinolaryngology-Head and Neck Surgery, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, People's Republic of China.
Xiao-Ming
XM
Huang
Department of Otorhinolaryngology-Head and Neck Surgery, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, People's Republic of China.
Jie-Ren
JR
Peng
Department of Otorhinolaryngology-Head and Neck Surgery, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, People's Republic of China. Electronic address: yiqingzheng@hotmail.com.
Yi-Qing
YQ
Zheng
D000293:Adolescent; D000328:Adult; D016022:Case-Control Studies; D055154:Dysphonia / Q000175:diagnosis / Q000503:physiopathology / Q000628:therapy*; D005260:Female; D006801:Humans; D007830:Larynx / Q000503:physiopathology*; D008875:Middle Aged; D010699:Phonation; D012737:Sex Factors; D013997:Time Factors; D016896:Treatment Outcome; D014833:Voice Quality; D014834:Voice Training; D055815:Young Adult
Muscular tension dysphonia; Vocal aerodynamic analysis; Voice training