Introduction: Commercial Forced oscillation technique (FOT) devices use patented data acquisition... more Introduction: Commercial Forced oscillation technique (FOT) devices use patented data acquisition protocols to measure respiratory impedance. ERS guideline recommended that short term intra-individual variability of repeated measurements of FOT indices as expressed as coefficient of variation (CV) should be Methods: FOT were carried out in triplicate and within twenty minutes intervals by using “15 accepted breaths” protocol of Resmon Pro Full device ((Restech Srl, Italy). CV of R5 in 71 healthy adults, 16 COPD, and 20 adult asthmatic patients were analyzed. Results: The median CV of R5 was 10.6% (6.5-17.7) in healthy, 7.6% (5.6-10.3) in COPD, and 14.5% (6.9-22.9) in bronchial asthma respectively. Acceptable CV ( Conclusions: Short term CV of
Introduction: Commercial Forced oscillation technique (FOT) devices use patented data acquisition... more Introduction: Commercial Forced oscillation technique (FOT) devices use patented data acquisition protocols to measure respiratory impedance. ERS guideline recommended that short term intra-individual variability of repeated measurements of FOT indices as expressed as coefficient of variation (CV) should be Methods: FOT were carried out in triplicate and within twenty minutes intervals by using “15 accepted breaths” protocol of Resmon Pro Full device ((Restech Srl, Italy). CV of R5 in 71 healthy adults, 16 COPD, and 20 adult asthmatic patients were analyzed. Results: The median CV of R5 was 10.6% (6.5-17.7) in healthy, 7.6% (5.6-10.3) in COPD, and 14.5% (6.9-22.9) in bronchial asthma respectively. Acceptable CV ( Conclusions: Short term CV of
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