{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,24]],"date-time":"2026-07-24T16:22:42Z","timestamp":1784910162755,"version":"3.55.0"},"reference-count":12,"publisher":"S. Karger AG","issue":"7","license":[{"start":{"date-parts":[[2021,1,1]],"date-time":"2021-01-01T00:00:00Z","timestamp":1609459200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"},{"start":{"date-parts":[[2021,1,1]],"date-time":"2021-01-01T00:00:00Z","timestamp":1609459200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Respiration"],"published-print":{"date-parts":[[2021]]},"abstract":"<b><i>Background and Objectives:<\/i><\/b> The 6-minute walk test (6MWT), as a clinical assessment tool for functional exercise capacity, is an integral component of lung allocation scores (LASs). In times of the coronavirus disease (COVID-19) pandemic, patients underwent 6MWTs wearing a surgical mask in ambulatory care. We investigated the impact of wearing a mask on 6-minute walk distances (6MWDs). <b><i>Method:<\/i><\/b> 6MWDs of 64 patients with end-stage lung diseases wearing an oronasal surgical mask were retrospectively compared to previously investigated 6MWDs of the same cohort, in a pre-COVID-19 pandemic era, without wearing a mask. Four patients were excluded due to a primary vascular disease, 29 patients due to clinically unstable pulmonary functions, and 1 patient due to a psychiatric disorder. <b><i>Results:<\/i><\/b> The median age of the patients included was 55 (46\u201358) years; 15 (48%) were male. Ten (32.2%) were on the Eurotransplant lung transplant waiting list with a median LAS of 34.3 (31.9\u201336.2). Twenty (64.5%) patients had chronic obstructive pulmonary diseases, 7 (22.6%) had interstitial lung diseases, and 4 (12.9%) had other end-stage lung diseases. The mean 6MWD without versus with wearing a mask was 306.9 (101.9) versus 305.7 (103.8) m, with a mean difference of \u22121.19 m (95% confidence interval \u221213.4 to 11.03). The observed difference is statistically equivalent to zero (<i>p<\/i> &#x3c; 0.001). No significant differences in 6MWDs were observed between the clinical groups. <b><i>Conclusion:<\/i><\/b> Wearing an oronasal surgical mask did not affect the 6MWDs of patients with advanced lung diseases. Therefore, a masked 6MWT appears to provide a reliable examination of functional exercise capacity in this cohort. <\/jats:p>","DOI":"10.1159\/000515606","type":"journal-article","created":{"date-parts":[[2021,4,20]],"date-time":"2021-04-20T21:02:45Z","timestamp":1618952565000},"page":"594-599","source":"Crossref","is-referenced-by-count":15,"title":["Validity of the 6-Minute Walk Test in Patients with End-Stage Lung Diseases Wearing an Oronasal Surgical Mask in Times of the COVID-19 Pandemic"],"prefix":"10.1159","volume":"100","author":[{"given":"Isabell Anna","family":"Just","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Felix","family":"Schoenrath","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Philipp","family":"Passinger","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Julia","family":"Stein","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dagmar","family":"Kemper","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christoph","family":"Knosalla","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Volkmar","family":"Falk","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jan","family":"Knierim","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"127","published-online":{"date-parts":[[2021,4,20]]},"reference":[{"key":"ref1","doi-asserted-by":"publisher","DOI":"10.1155\/2015\/280187"},{"key":"ref2","doi-asserted-by":"publisher","DOI":"10.1183\/09031936.00131813"},{"key":"ref3","doi-asserted-by":"publisher","DOI":"10.21037\/jtd.2017.07.83"},{"key":"ref4","doi-asserted-by":"publisher","DOI":"10.1164\/ajrccm.166.1.at1102"},{"key":"ref5","doi-asserted-by":"publisher","DOI":"10.2105\/AJPH.2006.096214"},{"key":"ref6","doi-asserted-by":"publisher","DOI":"10.1164\/rccm.201110-1794ED"},{"key":"ref7","doi-asserted-by":"publisher","DOI":"10.1164\/rccm.201310-1863PP"},{"key":"ref8","doi-asserted-by":"publisher","DOI":"10.1164\/ajrccm.155.4.9105067"},{"key":"ref9","doi-asserted-by":"publisher","DOI":"10.1164\/rccm.201007-1179OC"},{"key":"ref10","doi-asserted-by":"publisher","DOI":"10.1016\/j.rmr.2017.01.010"},{"key":"ref11","doi-asserted-by":"publisher","DOI":"10.1007\/s00392-020-01704-y"},{"key":"ref12","doi-asserted-by":"publisher","DOI":"10.1136\/hrt.80.4.377"}],"container-title":["Respiration"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.karger.com\/Article\/Pdf\/515606","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/www.karger.com\/Article\/Pdf\/515606","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,4,23]],"date-time":"2025-04-23T16:36:13Z","timestamp":1745426173000},"score":1,"resource":{"primary":{"URL":"https:\/\/karger.com\/article\/doi\/10.1159\/000515606"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021]]},"references-count":12,"journal-issue":{"issue":"7","published-online":{"date-parts":[[2021,7,7]]},"published-print":{"date-parts":[[2021,7,6]]}},"URL":"https:\/\/doi.org\/10.1159\/000515606","archive":["Portico"],"relation":{},"ISSN":["0025-7931","1423-0356"],"issn-type":[{"value":"0025-7931","type":"print"},{"value":"1423-0356","type":"electronic"}],"subject":[],"published":{"date-parts":[[2021]]}}}