Comparison of physical properties of voluntary coughing, huffing and swallowing in healthy subjects.

Tytuł:: Comparison of physical properties of voluntary coughing, huffing and swallowing in healthy subjects.
Autorzy:: Yawata A; Division of Dysphagia Rehabilitation, Niigata University Graduate School of Medical and Dental Sciences, Chuo-ku, Niigata, Japan.
Tsujimura T; Division of Dysphagia Rehabilitation, Niigata University Graduate School of Medical and Dental Sciences, Chuo-ku, Niigata, Japan.
Takeishi R; Division of Dysphagia Rehabilitation, Niigata University Graduate School of Medical and Dental Sciences, Chuo-ku, Niigata, Japan.
Magara J; Division of Dysphagia Rehabilitation, Niigata University Graduate School of Medical and Dental Sciences, Chuo-ku, Niigata, Japan.
Yu L; Department of Respiratory and Critical Care Medicine, Tongji Hospital, Tongji University School of Medicine, Shanghai, China.
Inoue M; Division of Dysphagia Rehabilitation, Niigata University Graduate School of Medical and Dental Sciences, Chuo-ku, Niigata, Japan.
Źródło:: PloS one [PLoS One] 2020 Dec 03; Vol. 15 (12), pp. e0242810. Date of Electronic Publication: 2020 Dec 03 (Print Publication: 2020).
Typ publikacji:: Journal Article; Research Support, Non-U.S. Gov't
Język:: English
Imprint Name(s):: Original Publication: San Francisco, CA : Public Library of Science
MeSH Terms:: Healthy Volunteers*
Respiration*
Cough/*physiopathology
Deglutition/*physiology
Adult ; Female ; Hand Strength/physiology ; Humans ; Male
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Entry Date(s):: Date Created: 20201203 Date Completed: 20210118 Latest Revision: 20210118
Update Code:: 20240104
PubMed Central ID:: PMC7714348
DOI:: 10.1371/journal.pone.0242810
PMID:: 33270679
: Czasopismo naukowe

Pełny tekst

Coughing, huffing and swallowing protect the airway from aspiration. This study was conducted to compare the physical properties of voluntary coughing, huffing and swallowing in healthy subjects. Ten healthy men were asked to huff, cough and swallow repeatedly. Electromyograms (EMGs) were recorded from the left side of the external oblique (EO), sternocleidomastoid, suprahyoid (SH) and thyrohyoid muscles. Airflow was recorded using a face mask with two-way non-rebreathing valves. The expiratory velocity of huffing and coughing and the SH EMG of all actions presented high intraclass correlation coefficients (> 0.8). The inspiratory and expiratory velocities did not differ significantly between coughing and huffing. The expiratory acceleration of coughing was significantly higher than that of huffing, whereas the expiratory volume of coughing was significantly smaller than that of huffing. The EO EMG of coughing and huffing were significantly larger than that of swallowing. The EO EMG activity during the expiratory phase was significantly higher than that of the other phases of both coughing and huffing. The SH EMG of coughing and huffing were significantly smaller than that of swallowing. Correlation analysis revealed that the expiratory velocity of coughing was strongly positively correlated with that of huffing. The expiratory volume of huffing was significantly positively correlated with hand grip strength. These results suggest that EO and SH muscle activities during huffing or coughing differ those during swallowing, and huffing and coughing may work similarly in expiratory function.
Competing Interests: The authors have declared that no competing interests exist.

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