This device measures lung function and records the results, which are also displayed on a graph ... (FVC). The test also measures how much you exhaled in the first second, known as FEV1.

Lung function was evaluated as forced expiratory volume in 1 second (FEV1), FVC, and FEV1/FVC ratio, measured using spirometry at baseline, and postbronchodilator values of these measures were ...

Results Pulmonary function tests were evaluated from 311 athletes, across 20 Olympic and 13 paralympic sports (48% female, mean +/- SD age: 25 ± 5 years). Supra-normal FEV1 and FVC values were ...