Why treatment efficacy on breathlessness in laboratory but not daily life trials? The importance of standardized exertion
PURPOSE OF REVIEW: Treatments for chronic breathlessness, including opioids and oxygen, have shown efficacy in the controlled laboratory setting, whereas effects have been inconsistent or absent in trials in daily life. This review discusses the lack of standardized exertion as a potential cause of false negative findings for breathlessness in daily life. RECENT FINDINGS: The level of breathlessne
