Intermittent hypoxic exposure with or without exercise improved cardiopulmonary functions in people with cardiovascular risk factors

This randomized study explored the effects of intermittent hypoxic exposure, with or without exercise, on lung function, lipid profile, and 6-minute walk distance in 30 individuals with cardiovascular risk factors. As part of the study, lung function testing (FEV1, FVC, FEV1/FVC ratio) was undertaken using a calibrated Vitalograph Pneumotrac spirometer.