Figure 5. Expired minute ventilation, maximal ventilatory capacity and theoretical ventilation to fully offset EIAH during the maximal exercise for the EFL and NEFL subjects (A) and the EIAH and NEIAH subjects (B).

EFL, expiratory flow limitation; NEFL, no expiratory flow limitation; EIAH, exercise-induced arterial hypoxaemia; NEIAH, no exercise-induced arterial hypoxaemia; , maximal oxygen consumption; , expired minute ventilation; , ventilatory capacity. ‡Different from EFL group's ventilatory capacity; *different from EIAH group's expired minute ventilation; §different from EIAH group's ventilation to eliminate EIAH, P < 0.05.