Category 100020
Assessment centrePhysical measures ⏵ Spirometry


This category contains data on breath spirometry using a Vitalograph Pneumotrac 6800. The participant is asked to record two to three blows (lasting for at least 6 seconds) within a period of about 6 minutes. The computer compares the reproducibility of the first two blows and, if acceptable (defined as a <5% difference in forced volume vital capacity (FVC) & Forced Expiratory Volume in 1 second (FEV1)), will indicate that the third blow is not required. During the pilot phase of the study up to 7 blows were possible.