IMT is a single centre double-blind, parallel group randomised controlled trial comparing real IMT with sham IMT.
Patients with uncontrolled asthma are randomised to receive an inspiratory muscle training device or a sham device. Participants in both groups complete 30 breaths twice daily (one set in the morning and one set in the evening), six days a week for six consecutive weeks.
The aim of this study is to collect pilot data to assess the feasibility of a follow-on main study utilizing such an IMT program. Specifically, the study will assess asthma control and symptoms, quality of life, airway inflammation, immune markers of asthma, and rescue medication usage. Data collected will also be used to identify the primary outcome measure for a follow on IMT and asthma study.