Meshcherykova 2018.

Methods	Study design: RCT Study grouping: parallel‐group
Participants	Baseline characteristics IMT N (randomized/analyzed): not reported/17 Age mean (SD) in years: 62.5 (7.5) Control/sham N (randomized/analyzed): not reported/11 Age mean (SD) in years: 63.5 (9.8) Overall N (randomized/analyzed): not reported/ 28 COPD stage: severe Included criteria: patients with severe COPD
Interventions	Intervention characteristics IMT: participants received IMT for 3 months Control/sham: training with no load
Outcomes	Dyspnea: BDI‐TDI Functional exercise capacity: 6MWD Respiratory function: FEV1 Respiratory function: RV
Notes