3.2. Changes in Respiratory Function before and after the Intervention
Respiratory function was analyzed using a diagnostic sp70B spirometer (Contec Medical Systems, Hebei, China). Upon completion of the 6-week intervention, pre–post changes in respiratory function were compared between the CMEBE and CPTBE groups.Both groups showed a significant difference in FVC between the pre- and post-intervention measurements: an increase of 0.76 L from 1.88 L to 2.64 L (Both groups showed a significant pre–post difference in forced expiratory volume in 1 s (FEV1): an increase of 1.11 L from 2.94 L to 3.24 L (Both groups showed a significant pre–post difference in PEF: an increase of 1.09 L from 2.56 L to 3.65 L (