The modified Medical Research Council scale misclassifies exertional breathlessness among people referred for exercise testing.

ABSTRACT:

Background

Exertional breathlessness is a major symptom in cardiorespiratory disease and is often assessed using the modified Medical Research Council (mMRC) questionnaire. The mMRC might underestimate exertional breathlessness in people with impaired exercise capacity who have reduced their physical activity to avoid the symptom. We aimed to evaluate the ability of mMRC to detect abnormally high exertional breathlessness or abnormally low exercise capacity during incremental cycle exercise testing (IET).

Methods

A secondary analysis of data from a randomised controlled trial of outpatients aged 18 years or older referred for IET was carried out. Participants completed the mMRC before IET. Abnormally high exertional breathlessness was defined as a breathlessness (Borg 0-10)

SUBMITTER: Gustafsson D 

PROVIDER: S-EPMC10752288 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature