Effects of High-Flow Nasal Cannula on Exercise Outcomes in Lung Transplant Candidates: A Pilot Study

Three functional tests were performed: the six-minute walk test, incremental lower limb test with arterial blood gas analysis, and lower limb endurance test with inspiratory capacity measurement. Each test was conducted on different days with different devices: HFNC and conventional oxygen therapy, totaling six test days. The inspired oxygen fraction (FiO2) was titrated to maintain normoxia between 90% to 96% and was kept constant for both interfaces.

Three functional tests were performed: the six-minute walk test, incremental lower limb test with arterial blood gas analysis, and lower limb endurance test with inspiratory capacity measurement. Each test was conducted on different days with different devices: HFNC and conventional oxygen therapy, totaling six test days. The inspired oxygen fraction (FiO2) was titrated to maintain normoxia between 90% to 96% and was kept constant for both interfaces.