Figure 1.

(a) How non-breath movements affect the barometric whole-body plethysmography (BWBP) waveforms. The little boxes displayed around the graphic tracing are set in the software to indicate the parameters that the BWBP software calculates. Red and green boxes represent the parameters of peak expiratory and inspiratory flow being calculated, respectively. It was noted that waveforms disturbed by vocalisations and movement (red arrows) were still included in the calculation of outcome variables. (b) The simultaneous visual inspection (SVI) methodology. With real-time visual inspection for signals and the cat’s status, multiple time periods that were free of artefacts were manually recorded. TV = tidal volume