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At three evaluations, with 3 months in-between, assessments included: self-report of functional status, the St. George\u2019s Respiratory Questionnaire, spirometry, the 6-min-walk-test, the MRC-scale, the 30-s sit-to-stand-test, the timed-up-and-go-test, nutritional status, and ultrasound imaging (vastus medialis and diaphragm). At referral, patients had nutritional deficits with protein deficiency, which gradually improved; while muscle thickness (of both vastus medialis and diaphragm) increased, along with muscle strength and mobility (ANOVA,\n                    <jats:italic>p<\/jats:italic>\n                    \u2009&lt;\u20090.05). Contrarywise, the distance covered during the 6-min-walk-test decreased (ANOVA,\n                    <jats:italic>p<\/jats:italic>\n                    \u2009&lt;\u20090.05), with a negative influence from excess body mass. During rehabilitation, health-related quality of life and functional status improved, with negative influence from a history of tobacco use and referral delay, respectively. After hospitalization due to COVID-19, early diagnosis of both protein deficiency and decrease of skeletal muscle thickness could be relevant for rehabilitation, while pondering the negative impact of excess body mass on submaximal exercise performance.\n                  <\/jats:p>","DOI":"10.1038\/s41598-024-65698-7","type":"journal-article","created":{"date-parts":[[2024,7,1]],"date-time":"2024-07-01T12:02:28Z","timestamp":1719835348000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Malnutrition contribution to the functional status and health related quality of life after COVID-19, a correlational follow-up study"],"prefix":"10.1038","volume":"14","author":[{"given":"Laura Alejandra","family":"Mej\u00eda Alonso","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Eliseo","family":"Espinosa-Poblano","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sarahi","family":"de Regil L\u00f3pez","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ver\u00f3nica","family":"Lemus Eslava","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jes\u00fas Guadalupe","family":"Serrano S\u00e1nchez","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Carlos","family":"Paredes-Manjarrez","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andr\u00e9s Tlacaelel","family":"Balderas-Chair\u00e9z","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Juan Carlos","family":"Anda-Garay","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jos\u00e9 Ad\u00e1n","family":"Miguel-Puga","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kathrine","family":"J\u00e1uregui-Renaud","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2024,7,1]]},"reference":[{"key":"65698_CR1","doi-asserted-by":"publisher","first-page":"6588","DOI":"10.1038\/s41467-023-41879-25","volume":"14","author":"CJ Atchison","year":"2023","unstructured":"Atchison, C. 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