{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T10:27:15Z","timestamp":1787048835348,"version":"build-2736575974"},"reference-count":40,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T00:00:00Z","timestamp":1787011200000},"content-version":"vor","delay-in-days":229,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,1,1]],"date-time":"2026-01-01T00:00:00Z","timestamp":1767225600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100002322","name":"Coordena\u00e7\u00e3o de Aperfei\u00e7oamento de Pessoal de N\u00edvel Superior","doi-asserted-by":"publisher","award":["001"],"award-info":[{"award-number":["001"]}],"id":[{"id":"10.13039\/501100002322","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Journal of Aging Research"],"published-print":{"date-parts":[[2026,1]]},"abstract":"<jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>The metabolic equivalent (1\u2010MET) represents the oxygen consumption at rest, reflecting the body\u2019s minimal energy needs. Determinants of 1\u2010MET among older adults are yet to be defined. This cross\u2010sectional study examined the association between 1\u2010MET, body size and composition, and cardiorespiratory fitness in older adults using principal component analysis (PCA).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>\n                      Fifty\u2010eight participants aged 60 and above (12 males, 75.4\u2009\u00b1\u20096.5\u2009years) were assessed for 1\u2010MET and peak oxygen consumption (VO\n                      <jats:sub>2peak<\/jats:sub>\n                      ) via indirect calorimetry, and body composition was measured by dual\u2010energy X\u2010ray absorptiometry.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      The average 1\u2010MET value (2.3\u2009mL\u00b7kg\n                      <jats:sup>\u22121<\/jats:sup>\n                      \u00b7min\n                      <jats:sup>\u22121<\/jats:sup>\n                      ) was significantly lower than the reference 3.5\u2009mL\u2009kg\n                      <jats:sup>\u22121<\/jats:sup>\n                      \u00b7min\n                      <jats:sup>\u22121<\/jats:sup>\n                      (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.001). PCA identified two factors accounting for 79.3% of the variance. Factor 1 (51.2% variance) grouped body mass index (BMI), fat mass, and body surface area. Factor 2 (28.1% variance) linked VO\n                      <jats:sub>2peak<\/jats:sub>\n                      and 1\u2010MET. Results showed that 1\u2010MET was more strongly associated with cardiorespiratory fitness than body size or composition.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>\n                      Cardiorespiratory fitness seems to be a determinant of the resting metabolic rate in older adults, and lower 1\u2010MET values would be expected in individuals with poorer vs. higher VO\n                      <jats:sub>2peak<\/jats:sub>\n                      .\n                    <\/jats:p>\n                  <\/jats:sec>","DOI":"10.1155\/jare\/2866677","type":"journal-article","created":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T09:45:12Z","timestamp":1787046312000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Body Composition and Cardiorespiratory Fitness vs. 1\u2010MET Value in Older Adults: A Factor Analytic Study"],"prefix":"10.1155","volume":"2026","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5250-3222","authenticated-orcid":false,"given":"Gabriela","family":"Venturini","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2463-1280","authenticated-orcid":false,"given":"Paulo","family":"Farinatti","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0649-2475","authenticated-orcid":false,"given":"Carlos A. 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