The University of Southampton
University of Southampton Institutional Repository

Inter-individual variability of added lung sounds in a healthy population

Inter-individual variability of added lung sounds in a healthy population
Inter-individual variability of added lung sounds in a healthy population
Introduction: Computer aided lung sound analysis (CALSA) can provide a wealth of information about normal and adventitious lung sounds. Currently there is a lack of information about the ‘normality‘ of these sounds and how they relate to anthropometric variables. This research aimed to create a database of normal reference values and explore the effect that gender, height, body mass index (BMI) and lung function might have on crackle parameters.
Methods: One hundred healthy participants were recruited; anthropometric and spirometry data were collected. A digital stethoscope connected to a laptop was used to record lung sounds at seven chest locations; participants were seated and mouth breathing slightly deeper than tidal volume. Lung sound data were analysed by time expanded waveform analysis. Descriptive and inferential statistics were used to summarise data and test hypotheses.
Results: Males were found to have significantly longer durations of initial deflection width (IDW) compared to females at two chest wall locations (p<0.05). Two cycle deflection (2CD) differed significantly (p<0.05) at three locations for participant heights <1.71m compared to ?1.71m. Only one significant correlation (trachea) was found between BMI and IDW (r=0.214, p=0.033) and BMI and 2CD (r=0.245, p=0.014). Although some statistically significant relationships were detected between lung function and crackle parameters, the highest r was 0.29.
Conclusions: There was no convincing evidence of any consistent relationship between crackle frequency and gender, height, BMI or lung function. Therefore, it is unlikely these variables are responsible for the inter-individual differences noted in crackle parameters in healthy people.
Marques, Alda
d8990c23-6d85-4379-ae44-01002b5b9cd4
Bruton, Anne
9f8b6076-6558-4d99-b7c8-72b03796ed95
Mahoney, Katie
ba81109d-89a1-4dab-a124-e58f54eab433
Kolstoe, Katanya
9d89e401-5b0e-4db4-a94c-22ca88acb17b
Moss, Rebecca
ddbc4949-9a1a-4c06-b1d7-ecee0d7e1d30
Thomas, Sheryl
3ff770e8-223c-483d-a373-2b4bda19f80e
Beverley, Zelda
f7881d38-bbd1-4e24-a0aa-9606494017cf
Marques, Alda
d8990c23-6d85-4379-ae44-01002b5b9cd4
Bruton, Anne
9f8b6076-6558-4d99-b7c8-72b03796ed95
Mahoney, Katie
ba81109d-89a1-4dab-a124-e58f54eab433
Kolstoe, Katanya
9d89e401-5b0e-4db4-a94c-22ca88acb17b
Moss, Rebecca
ddbc4949-9a1a-4c06-b1d7-ecee0d7e1d30
Thomas, Sheryl
3ff770e8-223c-483d-a373-2b4bda19f80e
Beverley, Zelda
f7881d38-bbd1-4e24-a0aa-9606494017cf

Marques, Alda, Bruton, Anne, Mahoney, Katie, Kolstoe, Katanya, Moss, Rebecca, Thomas, Sheryl and Beverley, Zelda (2009) Inter-individual variability of added lung sounds in a healthy population. European Respiratory Society Annual Congress, Vienna, Austria. 11 - 15 Sep 2009.

Record type: Conference or Workshop Item (Poster)

Abstract

Introduction: Computer aided lung sound analysis (CALSA) can provide a wealth of information about normal and adventitious lung sounds. Currently there is a lack of information about the ‘normality‘ of these sounds and how they relate to anthropometric variables. This research aimed to create a database of normal reference values and explore the effect that gender, height, body mass index (BMI) and lung function might have on crackle parameters.
Methods: One hundred healthy participants were recruited; anthropometric and spirometry data were collected. A digital stethoscope connected to a laptop was used to record lung sounds at seven chest locations; participants were seated and mouth breathing slightly deeper than tidal volume. Lung sound data were analysed by time expanded waveform analysis. Descriptive and inferential statistics were used to summarise data and test hypotheses.
Results: Males were found to have significantly longer durations of initial deflection width (IDW) compared to females at two chest wall locations (p<0.05). Two cycle deflection (2CD) differed significantly (p<0.05) at three locations for participant heights <1.71m compared to ?1.71m. Only one significant correlation (trachea) was found between BMI and IDW (r=0.214, p=0.033) and BMI and 2CD (r=0.245, p=0.014). Although some statistically significant relationships were detected between lung function and crackle parameters, the highest r was 0.29.
Conclusions: There was no convincing evidence of any consistent relationship between crackle frequency and gender, height, BMI or lung function. Therefore, it is unlikely these variables are responsible for the inter-individual differences noted in crackle parameters in healthy people.

Full text not available from this repository.

More information

Published date: 14 September 2009
Venue - Dates: European Respiratory Society Annual Congress, Vienna, Austria, 2009-09-11 - 2009-09-15

Identifiers

Local EPrints ID: 66384
URI: http://eprints.soton.ac.uk/id/eprint/66384
PURE UUID: fa5c2506-5f0c-4d14-97bd-ccdc4ba3fac8
ORCID for Anne Bruton: ORCID iD orcid.org/0000-0002-4550-2536

Catalogue record

Date deposited: 04 Feb 2010
Last modified: 30 Jan 2020 01:27

Export record

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×