Fig. 1From: Characteristics of exercise capacity in female systemic lupus erythematosus associated pulmonary arterial hypertension patientsa PVR trends in SLE PAH and IPAH, b Heart rate during the different exercise stages in SLE PAH, IPAH & controls, c VO2 in SLE PAH, IPAH & controls, d VO2/VE i.e. OUE in the three groups during different phases of CPETBack to article page