NCT01903772.

Methods	Study design: RCT Study grouping: parallel‐group
Participants	Inclusion Criteria: Patients with COPD Eligible to participate in an inpatient pulmonary rehabilitation program of 3 weeks PImax <60 cmH20 or <50% of the predicted normal value Exclusion Criteria: Major comorbidities preventing successful participation in an 8‐week exercise training intervention use of non‐invasive ventilation
Interventions	Intervention characteristics IMT: Inspiratory Muscle Training Three times daily inspiratory muscle training (2x30 breaths) at an intensity of >50% PImax Sham IMT: Twice daily inspiratory muscle training (3x30 breaths) at an intensity of 5 centimeters of water (H2O)
Outcomes	Dyspnea Functional exercise capacity Respiratory muscle strength: PImax Inspiratory muscle endurance capacity
Notes	It is unclear whether the study was completed, and no contact details were found.