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| Reference : Measurement of respiratory impedance in healthy calves using the impulse oscillation tec... |
| Scientific journals : Article | |||
| Life sciences : Anatomy (cytology, histology, embryology...) & physiology Life sciences : Veterinary medicine & animal health | |||
| http://hdl.handle.net/2268/10299 | |||
| Measurement of respiratory impedance in healthy calves using the impulse oscillation technique - physiological and methodological aspects | |
| English | |
| Reinhold, Petra [ > > ] | |
| Smith, H.-J. [ > > ] | |
| Langenberg, Annelie [ > > ] | |
Lekeux, Pierre  [Université de Liège - ULg > Département de sciences fonctionnelles > Physiologie - Doyen de la Faculté de Médecine vétérinaire >] | |
| 1998 | |
| Veterinary Journal | |
| Elsevier | |
| 155 | |
| 1 | |
| 27-38 | |
| International | |
| 1090-0233 | |
| [en] respiratory impedance ; respiratory mechanics ; forced oscillation technique ; impulse oscillometry ; cattle | |
| [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 | |
| Researchers ; Professionals | |
| http://hdl.handle.net/2268/10299 |
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