This study is a hybrid-designed prospective multicenter implementation evaluation study, in which the investigators secondarily will maintain measuring effectiveness of breathing retraining in a real-world setting including primary and secondary health care and add cross-sectorial co-operation. Thus, investigators include more primary outcomes.~The study is part of Exercise First-project, a collaboration of The National Health Service, Region Zealand and the research unit PROgrez, Department of Physiotherapy and Occupational Therapy at Næstved, Slagelse, Ringsted hospitals.
This study aims to implement the evidence-based intervention breathing retraining into clinical care of patients with symptomatic asthma irrespective of asthma severity or comorbidities, and in a diverse multicentre setting to evaluate implementation outcomes. This will meet patients' needs and improve health and life situation in patients with uncontrolled asthma. Further, the study will evaluate implementation outcomes.