The Correlation of Decreased Heart Rate Recovery and Chronotropic Incompetence with Exercise Capacity in Idiopathic Pulmonary Arterial Hypertension Patients

Table 3

The correlation between PFT parameters and HRR1 of IPAH patients.

Parameters
FVC (L)	0.3	<0.05
FEV1 (L)	0.4	<0.01
FEV1% pred	0.3	<0.05
FEV1/FVC (%)	0.4	<0.05
FEF50 (L/s)	0.5	<0.01
FEF50%	0.5	<0.01
FEF75 (L/s)	0.5	<0.01
FEF75%	0.5	<0.01
DLCO	0.3	<0.05

The abbreviation definitions are same as Table 1.