In:
PLOS ONE, Public Library of Science (PLoS), Vol. 15, No. 12 ( 2020-12-31), p. e0244539-
Abstract:
The respiratory system is a central part of voice production as it contributes to the generation of subglottic pressure, which has an impact on voice parameters including fundamental frequency and sound pressure level. Both parameters need to be adjusted precisely during complex phonation tasks such as singing. In particular, the underlying functions of the diaphragm and rib cage in relation to the phonation of pitch jumps are not yet understood in detail. This study aims to analyse respiratory movements during phonation of pitch jumps using dynamic MRI of the lungs. Dynamic images of the breathing apparatus of 7 professional singers were acquired in the supine position during phonation of upwards and downwards pitch jumps in a high, medium, and low range of the singer’s tessitura. Distances between characteristic anatomical landmarks in the lung were measured from the series of images obtained. During sustained phonation, the diaphragm elevates, and the rib cage is lowered in a monotonic manner. During downward pitch jumps the diaphragm suddenly changed its movement direction and presented with a short inspiratory activation which was predominant in the posterior part and was associated with a shift of the cupola in an anterior direction. The magnitude of this inspiratory movement was greater for jumps that started at higher compared to lower fundamental frequency. In contrast, expiratory movement of the rib cage and anterior diaphragm were simultaneous and continued constantly during the jump. The data underline the theory of a regulation of subglottic pressure via a sudden diaphragm contraction during phonation of pitch jumps downwards, while the rib cage is not involved in short term adaptations. This strengthens the idea of a differentiated control of rib cage and diaphragm as different functional units during singing phonation.
Type of Medium:
Online Resource
ISSN:
1932-6203
DOI:
10.1371/journal.pone.0244539
DOI:
10.1371/journal.pone.0244539.g001
DOI:
10.1371/journal.pone.0244539.g002
DOI:
10.1371/journal.pone.0244539.g003
DOI:
10.1371/journal.pone.0244539.g004
DOI:
10.1371/journal.pone.0244539.g005
DOI:
10.1371/journal.pone.0244539.g006
DOI:
10.1371/journal.pone.0244539.g007
DOI:
10.1371/journal.pone.0244539.g008
DOI:
10.1371/journal.pone.0244539.g009
DOI:
10.1371/journal.pone.0244539.g010
DOI:
10.1371/journal.pone.0244539.g011
DOI:
10.1371/journal.pone.0244539.t001
DOI:
10.1371/journal.pone.0244539.t002
DOI:
10.1371/journal.pone.0244539.t003
DOI:
10.1371/journal.pone.0244539.s001
DOI:
10.1371/journal.pone.0244539.s002
DOI:
10.1371/journal.pone.0244539.s003
DOI:
10.1371/journal.pone.0244539.s004
DOI:
10.1371/journal.pone.0244539.s005
DOI:
10.1371/journal.pone.0244539.s006
DOI:
10.1371/journal.pone.0244539.s007
DOI:
10.1371/journal.pone.0244539.s008
DOI:
10.1371/journal.pone.0244539.r001
DOI:
10.1371/journal.pone.0244539.r002
DOI:
10.1371/journal.pone.0244539.r003
DOI:
10.1371/journal.pone.0244539.r004
DOI:
10.1371/journal.pone.0244539.r005
DOI:
10.1371/journal.pone.0244539.r006
DOI:
10.1371/journal.pone.0244539.r007
DOI:
10.1371/journal.pone.0244539.r008
DOI:
10.1371/journal.pone.0244539.r009
DOI:
10.1371/journal.pone.0244539.r010
Language:
English
Publisher:
Public Library of Science (PLoS)
Publication Date:
2020
detail.hit.zdb_id:
2267670-3
Bookmarklink