Effect of sequential NIPPV + IMT intervention on pulmonary function in patients with COPD
COPD
COPD
As shown in Table 
Comparison of clinical baseline data and clinical characteristics of patientsFVC: Forced vital capacity; FEV1: Forced expiratory volume; NIF: Negative inspiratory force; PaCO
Effect of sequential NIPPV + IMT intervention on pulmonary function in patients with COPD. A total of 100 COPD patients were enrolled and randomly divided into OT group, NIPPV group, IMT group and NIPPV + IMT group. After 8 weeks of treatment, the lung function related indexes including FVC(A), FEV1(B) and FEV1/FVC(C) were measured by Jaeger pulmonary function instrument. All indices were determined at least three times