Measurement of Cough Aerodynamics in Healthy Adults

Feinstein, Aaron J.; Zhang, Zhaoyan; Chhetri, Dinesh K.; Long, Jennifer L.

doi:10.1177/0003489417694912

Cited by 15 publications

(25 citation statements)

References 20 publications

(29 reference statements)

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“…The value of CPF was significantly lower in women than men in all age groups. Our finding consist with a previous reports that value of CPF was lower in women than in men 7,8,28) . Men demonstrated greater height and body weight than women.…”

Section: Discussionsupporting

confidence: 93%

“…One study showed that FVC, FEV1.0, and MIP in the 70-79year group were significantly lower than those in the 50-59year group in men, and that FVC, FEV1.0, MIP, and MEP in the 70-79-year group were significantly lower than those in the 50-59-year group in women 27 ) . Additionally, the value of CPF in the older group (50-80 years) was lower than in the younger group (20-49 years) 28 ) . Taken these other results and our own results into account, the tendency for a decline in CPF with ageing seems to be similar to that for other respiratory functions.…”

Section: Discussionmentioning

confidence: 69%

“…Men demonstrated greater height and body weight than women. Height and weight affect respiratory function 29 ) and respiratory muscle 26 ) , and CPF increased as height increased 28) . Thus, difference of CPF between sexes can be explained by physique, and this relationship is similar to other respiratory functions.…”

Section: Discussionmentioning

confidence: 99%

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Comparison of voluntary cough function in community - dwelling elderly and its association with physical fitness

et al. 2020

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Objective: To compare the association of cough peak flow (CPF) with aging in communitydwelling older adults and to investigate the relationship between physical fitness and CPF in these individuals. Method: Two hundred twenty two community-dwelling older adults were enrolled. CPF was assessed as a cough function parameter. Forced vital capacity (FVC) and forced expiratory volume in 1 s (FEV1.0) were assessed as respiratory function. Maximal expiratory pressure (MEP) and inspiratory pressure (MIP) were assessed as respiratory muscle strength. The 3-minute walk test (3MWT) performance was assessed as a physical fitness. Participants were divided into the following age groups: 60-64, 65-69, 70-74, 75-79 and 80-89 years. One way analysis of variance were computed for comparison between age group, sex and CPF. Multivariate regression analyses were used to investigate the association of CPF with 3MWT. Results: The value of CPF significantly decreased in the 75-79 and 80-89 years group than 60-64 years group in men and in the 80-89 years group than 65-69 years group in women. The value of CPF were 545.5, 497.2, 403.3, 354.8 and 325.4 L/min in the 60-64, 65-69, 70-74, 75-79 and 80-89-year group in men and 263.4, 278.8, 264.5, 214.0, and 193.6 L/min in the corresponding age groups in women, respectively. 3MWT (p = 0.041) was significantly associated with CPF. Conclusions : Cough function tends to decrease with aging in communitydwelling elderly. Physical fitness is associated with cough function.

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Section: Discussionsupporting

confidence: 93%

Section: Discussionmentioning

confidence: 69%

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Comparison of voluntary cough function in community - dwelling elderly and its association with physical fitness

et al. 2020

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“…Another study reported aPCF unassisted cut-off point of 2.77 L/s (166 L/min) predicted cough effectiveness [28]. Age adjusted PCF values have been published for children from the age of 4-18 years old [29] along with normal values for adults [30]. After the age of 12 years, PCF appears to be within the adult range, albeit at the lower limit [29].…”

Section: Peak Cough Flow (Pcf)mentioning

confidence: 99%

Airway clearance techniques in neuromuscular disorders: A state of the art review

Chatwin

Toussaint²,

Gonçalves

et al. 2018

Respiratory Medicine

208

266

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This is a unique state of the art review written by a group of 21 international recognized experts in the field that gathered during a meeting organized by the European Neuromuscular Centre (ENMC) in Naarden, March 2017. It systematically reports the entire evidence base for airway clearance techniques (ACTs) in both adults and children with neuromuscular disorders (NMD). We not only report randomised controlled trials, which in other systematic reviews conclude that there is a lack of evidence base to give an opinion, but also include case series and retrospective reviews of practice. For this review, we have classified ACTs as either proximal (cough augmentation) or peripheral (secretion mobilization). The review presents descriptions; standard definitions; the supporting evidence for and limitations of proximal and peripheral ACTs that are used in patients with NMD; as well as providing recommendations for objective measurements of efficacy, specifically for proximal ACTs. This state of the art review also highlights how ACTs may be adapted or modified for specific contexts (e.g. in people with bulbar insufficiency; children and infants) and recommends when and how each technique should be applied.

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“…49 Laryngeal closure and opening connects to cough peak flow (CPF), the highest measured airflow spike during cough, appearing immediately after opening of the glottis during the cough cycle. 50,51 Duration of the cough compression phase has been suggested to primarily manipulate the pace of cough (fast/slow), whereas CPF affects the power of cough (strong/weak). 52 The threshold for clinically effective secretion removal has been proposed at CPF of 160-180 l/min.…”

Section: Cough Is Not a Cough Without A Functioning Larynxmentioning

confidence: 99%

Upper Airway Assessment and Responses During Mechanically Assisted Cough

et al. 2021

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When ability to cough is impaired, secretion clearance may be assisted and augmented by Mechanical Insufflation-Exsufflation (MI-E). In some individuals, the efficacy of MI-E may be hampered by counterproductive upper airway reactions, where the airways close in response to positive pressures. In order to fully utilize the therapeutic potential inherent in the MI-E technology, we need a better understanding of the pathophysiology behind these untoward reactions. There is an increasing interest in monitoring and measuring upper airway responses to MI-E, and how such information can be used to optimize the MI-E settings. The purpose of this narrative review is to increase the theoretical understanding of larynx as a respiratory organ, summarize the current literature in the area, and provide insight into how this knowledge can affect current clinical practice.

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Measurement of Cough Aerodynamics in Healthy Adults

Cited by 15 publications

References 20 publications

Comparison of voluntary cough function in community - dwelling elderly and its association with physical fitness

Comparison of voluntary cough function in community - dwelling elderly and its association with physical fitness

Airway clearance techniques in neuromuscular disorders: A state of the art review

Upper Airway Assessment and Responses During Mechanically Assisted Cough

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