Ref (type)	Population	Outcome, Interventions	Results and statistical analysis	Effect size	Favours
Symptom severity
[108] Systematic review	96 people 5 RCTs in this analysis	Transitional dyspnoea index 8 weeks to 12 months with IMT with sham IMT Absolute results not reported	WMD 2.55 95% CI 0.92 to 4.19 P = 0.002	Effect size not calculated	IMT