Breathing Control in Patients With Chronic Obstructive Pulmonary Disease (COPD)

Inclusion Criteria: * Dyspnoea symptoms in daily life * Spirometry values showing a COPD moderate stage II (FEV1/FVC\<70%, FEV1\<80%) and severity grade at a severe stage III (FEV1/FVC\<70%, FEV1\<50% and FEV1 = 30% of a predicted) * Be able to read, write and speak Norwegian * Be at a stable phase of the disease Exclusion Criteria: * Changes in pulmonary medication during the last 4 weeks * Diagnosis of cancer * Presently attending a pulmonary rehabilitation course or other similar COPD education courses (due to the fact that these courses often have instructions on breathing control), or having attended similar courses during the last six months * Ongoing exacerbation * Attending other competitive studies * Diagnosis of neuromuscular disease * Diagnosis of dementia * Attending help from a pulmonary physiotherapist