Open Access Short report

Evaluation of peak cough flow in Brazilian healthy adults

Fernanda EF Cardoso1, Luiz Carlos de Abreu2, Rodrigo Daminello Raimundo2, Natália ANM Faustino1, Suellen F Araújo1, Vitor E Valenti3, Monica Akemi Sato2, Silvia RG Martins1 and Jamili A Torquato1*

Author Affiliations

1 Universidade Cruzeiro do Sul. Av. Regente Feijó 1295, 03342-000, São Paulo, SP, Brasil

2 Laboratório de Delineamento de Estudos e Escrita Científica. Departamento de Morfologia e Fisiologia, Faculdade de Medicina do ABC. Av. Príncipe de Gales, 821. Príncipe de Gales, 09060-650, Santo André, SP, Brasil

3 Departamento de Fonoaudiologia, Faculdade de Filosofia e Ciências, Universidade Estadual Paulista, UNESP. Av. Hygino Muzzi Filho 737, 17525-000, Marília, SP, Brasil

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International Archives of Medicine 2012, 5:25  doi:10.1186/1755-7682-5-25

Published: 28 September 2012

Abstract

Introduction

In this study we aimed to evaluate the peak cough flow (PCF) in healthy Brazilian subjects.

Methods

We evaluated 484 healthy subjects between 18 and 40 years old. Subjects were seated and oriented were asked to perform a maximal inspiration followed by a quick, short and explosive expiration on the peak flow meter. Three measures were carried out and recorded the average of the three results for each individual.

Results

The PCF values ranged between 240 and 500 L/min. The PCF values were lower in females than in males. The PCF was inversely proportional to age.

Conclusion

The values for Brazilian adult healthy subjects regarding PCF were between 240 and 500 L/min.

Keywords:
Respiration; Cough; Peak expiratory flow rate; Physiology