1960
DOI: 10.1044/jshr.0303.291
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Sequence of Action of Breathing Muscles during Speech

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Cited by 13 publications
(15 citation statements)
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“…For example, maximum phonation duration tasks produced at conversational loudness require the maintenance of tracheal pressure (i.e., 5-8 cm H 2 O) against a constant decrease in lung volume. Recruitment of muscular effort is required to sustain the targeted tracheal pressure [9,16,27]. The timing of muscle activation relative to lung volume observed in adults in the current study aligns with previous predictions and observations [16,24].…”
Section: Resultssupporting
confidence: 79%
See 1 more Smart Citation
“…For example, maximum phonation duration tasks produced at conversational loudness require the maintenance of tracheal pressure (i.e., 5-8 cm H 2 O) against a constant decrease in lung volume. Recruitment of muscular effort is required to sustain the targeted tracheal pressure [9,16,27]. The timing of muscle activation relative to lung volume observed in adults in the current study aligns with previous predictions and observations [16,24].…”
Section: Resultssupporting
confidence: 79%
“…However, some expiratory muscular activity is needed because lung recoil in and of itself is not enough to achieve appropriate tracheal pressure. The muscular activity observed in the adults in the current study confirms previous observations indicating that expiratory muscle activity onset occurs during speaking and muscular amplitudes are detectable above resting levels [7,8,9,27]. Children also initiated their utterances within or above tidal breathing depth, but on average the present group of younger children ended their utterances below the end-expiratory level similar to that observed previously [4,5,6,25].…”
Section: Resultssupporting
confidence: 79%
“…The abdominal muscle that showed the lowest correlation with phonatory activity in the present study was the m. rectus abdominis. Activity of this muscle during phonation in man has been observed by Draper et al [2], Hoshiko [3], Hoshiko and Berger [4] and Tomoda et al [7], In the studies of Draper et al [2] and Hoshiko and Berger [4], in which activity of both the m. rectus and m. obliquus externus was record ed, it was found -in agreement with the present study -that the m. rectus becomes active after the m. obliquus externus. Floyd and Silver [ 1 ], in contrast, claim that there is I. VI virtually no activity in the m. rectus during singing.…”
Section: Discussionsupporting
confidence: 79%
“…In fact, there does not seem to be a single study in subhuman mam mals comparing different respiratory mus cles during phonation. In man, respiratory activity related to phonation has been stud ied using electromyography (EMG) by Floyd and Silver [ 1 ], Draper et al [2], Hoshiko [3], Hoshiko and Berger [4] and Taylor [5]. None of these studies, however, tested more than a few of the relevant muscles.…”
Section: Introductionmentioning
confidence: 99%
“…Even though abdominal muscles are capable of brief pulsatile contractions (Hoshiko, 1960;Ladefoged, Draper & Whitteridge, 1958;Berger, 1968), and their voluntary reaction times to light are as short as those measured for limb muscles (90-143 msec, Lansing, R. W. & Thomas, J. E., unpublished study), their participation in rapid load compensating adjustments has not been studied.…”
Section: Introductionmentioning
confidence: 99%