{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"omics_type":["Unknown"],"volume":["13"],"submitter":["Pleguezuelos E"],"pubmed_abstract":["<h4>Background</h4>Post-coronavirus disease 2019 (post-COVID-19) syndrome is associated with persistent impairments in physical fitness and altered body composition, particularly in older adults. The extracellular-to-total body water (ECW/TBW) ratio has been linked to poor outcomes in clinical populations. However, its association with cardiorespiratory fitness (CRF) and muscular fitness (MF) in older adults with post-COVID-19 syndrome remains unclear. This study aimed to examine the associations between ECW/TBW ratio, CRF, MF, and other variables in this population.<h4>Methods</h4>A cross-sectional study was conducted in 71 older adults with post-COVID-19 syndrome. Hydration status and body composition were assessed using bioelectrical impedance analysis (BIA). CRF was evaluated by cardio"],"journal":["Frontiers in nutrition"],"pagination":["1715783"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC12932222"],"repository":["biostudies-literature"],"pubmed_title":["Extracellular-to-total body water ratio is associated with comorbidity and cardiorespiratory fitness in older adults with post-COVID-19 syndrome."],"pmcid":["PMC12932222"],"pubmed_authors":["Sanchez-Nuno S","Biurrun-Garrido A","Moreno E","Serra-Prat M","Molina-Raya L","Girabent Farres M","Garnacho-Castano MV","Del Carmen A","Pleguezuelos E","Jerez-Molina C","Vinals X","Serra-Paya N","Castizo-Olier J"],"additional_accession":[]},"is_claimable":false,"name":"Extracellular-to-total body water ratio is associated with comorbidity and cardiorespiratory fitness in older adults with post-COVID-19 syndrome.","description":"<h4>Background</h4>Post-coronavirus disease 2019 (post-COVID-19) syndrome is associated with persistent impairments in physical fitness and altered body composition, particularly in older adults. The extracellular-to-total body water (ECW/TBW) ratio has been linked to poor outcomes in clinical populations. However, its association with cardiorespiratory fitness (CRF) and muscular fitness (MF) in older adults with post-COVID-19 syndrome remains unclear. This study aimed to examine the associations between ECW/TBW ratio, CRF, MF, and other variables in this population.<h4>Methods</h4>A cross-sectional study was conducted in 71 older adults with post-COVID-19 syndrome. Hydration status and body composition were assessed using bioelectrical impedance analysis (BIA). CRF was evaluated by cardio","dates":{"release":"2026-01-01T00:00:00Z","publication":"2026","modification":"2026-07-16T22:29:20.999Z","creation":"2026-07-11T03:12:14.918Z"},"accession":"S-EPMC12932222","cross_references":{"pubmed":["41756626"],"doi":["10.3389/fnut.2026.1715783"]}}