Outcomes
dyspnea
THORACIC, SECONDARY
Outcome measures were performed by a certified, trained physiotherapist who is blinded to the group allocation of the participants. The assessments were administered at baseline and after completion of the intervention (3 months).The primary outcome measure is a change in the distance on the 6MWT. The 6MWT is conducted following the American Thoracic Society guidelines. The participants are tested for the longest distance walked in 6 min over a flat 30 m linear distance, which is a submaximal exercise test used to quantify the functional exercise capacity in clinical populations [The secondary outcome measures include lung function tests, skeletal muscle strength, dyspnea, and quality of life. The lung function test is performed by a dedicated medical staff in the lung function room using a lung function device (Masterscreen-PFT, Jaeger, Germany), which includes forced vital capacity (FVC), forced expiratory volume in one second (FEV1), percentage of predicted values of FEV1 (FEV1%pred), FVC% pred, and FEV1/FVC %. Skeletal muscle strength is assessed using the isokinetic muscle strength test (CON-TREX, Physiomed, Germany). The isokinetic muscle strength test can assess dynamic muscle strength, and the data output can reflect the functional status of specific muscles [