Research has shown that reduced physical activity and lower exercise capacity — as shown by the six-minute walk test, decreased peak oxygen uptake and other measures — are associated with a higher mortality risk in people with interstitial lung disease (ILD). Pulmonary rehabilitation, including different types of exercise therapy, is recommended for people with ILD, with documented benefits on quality of life and mortality. But there are still some gaps in the understanding of the relationship between exercise and ILD and to what extent exercise can affect the course of the disease and the deaths that it causes.

Those gaps led a group of researchers from Korea to evaluate the association between exercise maintenance and mortality in individuals with ILD using a longitudinal, large populat

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