Patients receiving RMET showed significant improvements in endurance exercise capacity ( constant-load exercise on cycle ergometry ; 18 min vs 28 min , p < 0.001 ) , in perception of dyspnea ( Borg score ; 8.4 vs 5.4 , p < 0.001 ) , and respiratory muscle endurance capacity ( sustainable inspiratory pressure ; 25 cm H ( 2 ) O vs 31 cm H ( 2 ) O , p = 0.005 ) .
