Measurement of respiratory impedance in healthy calves using the impulse oscillation technique - physiological and methodological aspects

Reinhold, Petra; Smith, H.-J.; Langenberg, Annelie; Lekeux, Pierre

doi:10.1016/S1090-0233(98)80032-4

Article (Scientific journals)

Measurement of respiratory impedance in healthy calves using the impulse oscillation technique - physiological and methodological aspects

Reinhold, Petra; Smith, H.-J.; Langenberg, Annelie et al.

1998 • In Veterinary Journal, 155 (1), p. 27-38

Peer Reviewed verified by ORBi

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https://hdl.handle.net/2268/10299

DOI
10.1016/S1090-0233(98)80032-4

PubMed
9455157

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Keywords :

respiratory impedance; respiratory mechanics; forced oscillation technique; impulse oscillometry; cattle

Abstract :

[en] The aim of the present study was to investigate methodological and physiological aspects of complex respiratory impedance measurements in calves using the impulse oscillation technique. To apply the system to animals, a tightly fitting face mask was used. The measuring system was modified by placing a flexible tube between the pneumotachograph and the loudspeaker. Complex respiratory impedance measurements were not significantly influenced by the modification. Linear correlations were found between body weight and respiratory impedance; as body weight increased, resistance decreased and reactance increased. The methodological variability of impedance measurements using the impulse technique was found to be extremely small. Diurnal variations of respiratory impedance were considered to be the main source of intra-individual variability. When comparing different animals (even when healthy and matched for age and body weight) our results suggest that inter-individual biological variability must be carefully considered

Disciplines :

Anatomy (cytology, histology, embryology...) & physiology
Veterinary medicine & animal health

Author, co-author :

Reinhold, Petra

Smith, H.-J.

Langenberg, Annelie

Lekeux, Pierre ; Université de Liège - ULiège > Département de sciences fonctionnelles > Physiologie - Doyen de la Faculté de Médecine vétérinaire

Language :

English

Title :

Measurement of respiratory impedance in healthy calves using the impulse oscillation technique - physiological and methodological aspects

Publication date :

1998

Journal title :

Veterinary Journal

ISSN :

1090-0233

eISSN :

1532-2971

Publisher :

Elsevier

Volume :

155

Issue :

Pages :

27-38

Peer reviewed :

Peer Reviewed verified by ORBi

Available on ORBi :

since 07 April 2009

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