The six-minute walk test is a good index of physical function and therapeutic response in patients with [[chronica lung disease (disambiguation)|chronic [[lung disease]], such as [[COPD]] or [[idiopathic pulmonary fibrosis]].<ref name="pmid12890299">{{cite journal | vauthors = Enright PL | title = The six-minute walk test | journal = Respiratory Care | volume = 48 | issue = 8 | pages = 783–785 | date = August 2003 | pmid = 12890299 }}</ref><ref name="pmid19996335">{{cite journal | vauthors = Swigris JJ, Wamboldt FS, Behr J, du Bois RM, King TE, Raghu G, Brown KK | title = The 6 minute walk in idiopathic pulmonary fibrosis: longitudinal changes and minimum important difference | journal = Thorax | volume = 65 | issue = 2 | pages = 173–177 | date = February 2010 | pmid = 19996335 | pmc = 3144486 | doi = 10.1136/thx.2009.113498 }}</ref><ref name="pmid12091180">{{cite journal | author = ATS Committee on Proficiency Standards for Clinical Pulmonary Function Laboratories | title = ATS statement: guidelines for the six-minute walk test | journal = American Journal of Respiratory and Critical Care Medicine | volume = 166 | issue = 1 | pages = 111–117 | date = July 2002 | pmid = 12091180 | doi = 10.1164/ajrccm.166.1.at1102 }}</ref>
