Spirometry with FVL measurement is a vital component of the patient evaluation for respiratory symptoms, and when a properly performed FVL test is abnormal it should prompt a thorough investigation.

Expiratory flow limitation is a hallmark finding in patients with severe airflow obstruction, as in COPD. It is extremely difficult for these patients to increase their expiratory flow above its ...

Most exercise scientists would agree that the physiological determinants of peak endurance performance include the capacity to transport oxygen to the working muscle, diffusion from the muscle to the ...