The impact of yoga practice on health, strength, and respiratory capacity in Portuguese Airforce pilots: An applied psychophysiology and biofeedback approach

This randomized controlled trial assessed the impact of a 12-week yoga program on health, strength, and respiratory capacity, as compared with no yoga, in 18 Portuguese Air Force Academy pilots. Respiratory function (FEV1, FEV6, FVC) was evaluated before and after the intervention using the Vitalograph COPD-6 device.