{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,22]],"date-time":"2026-10-22T04:38:30Z","timestamp":1792643910504,"version":"4.5.0"},"reference-count":34,"publisher":"Wiley","issue":"10","license":[{"start":{"date-parts":[[2026,10,18]],"date-time":"2026-10-18T00:00:00Z","timestamp":1792281600000},"content-version":"vor","delay-in-days":17,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,10,1]],"date-time":"2026-10-01T00:00:00Z","timestamp":1790812800000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Scandinavian Med Sci Sports"],"published-print":{"date-parts":[[2026,10]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    Sit\u2010to\u2010stand (STS) power is a practical field\u2010based indicator of lower\u2010limb muscle power and functional performance across adulthood, yet reference values have been derived mainly from European cohorts, and allometric STS power remains scarcely described in Latin America. This multicenter cross\u2010sectional study developed sex\u2010 and age\u2010specific descriptive reference benchmarks for relative and allometric STS power in adults from Chile, Colombia, and Ecuador, and examined age\u2010 and country\u2010related variation. A total of 1254 healthy adults aged 18\u201380\u2009years performed a standardized five\u2010repetition STS test. Relative STS power was estimated using established biomechanical equations, and allometric STS power was calculated by normalizing absolute power to height squared. Sex\u2010specific empirical percentiles were generated across 10\u2010year age bands, and generalized additive models were used to characterize cross\u2010sectional age\u2010related patterns and assess country\u2010specific heterogeneity. Relative STS power was lower in older age groups in both sexes, with median values ranging from 4.50 to 2.40\u2009W\u00b7kg\n                    <jats:sup>\u22121<\/jats:sup>\n                    in women and from 5.20 to 2.80\u2009W\u00b7kg\n                    <jats:sup>\u22121<\/jats:sup>\n                    in men between the 18\u201329 and 70\u201380\u2009year groups. Allometric STS power showed a similar cross\u2010sectional pattern, with median values ranging from 114.35 to 61.30\u2009W\u00b7m\n                    <jats:sup>\u22122<\/jats:sup>\n                    in women and from 126.70 to 74.10\u2009W\u00b7m\n                    <jats:sup>\u22122<\/jats:sup>\n                    in men. Ecuador showed higher distributions of relative STS power than Chile and Colombia, and cross\u2010sectional age\u2010related patterns differed across countries. Exploratory physical activity gradients were attenuated after adjustment. These pooled, equation\u2010derived percentiles are regional summary benchmarks rather than country\u2010specific reference values and should be interpreted cautiously in younger adults and smaller strata.\n                  <\/jats:p>","DOI":"10.1111\/sms.70382","type":"journal-article","created":{"date-parts":[[2026,10,19]],"date-time":"2026-10-19T04:37:10Z","timestamp":1792384630000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Sit\u2010to\u2010Stand Power Across Adulthood in Three Latin American Countries: Sex\u2010Specific Relative and Allometric Reference Values From a Multicenter Study"],"prefix":"10.1111","volume":"36","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5784-275X","authenticated-orcid":false,"given":"Mat\u00edas","family":"Otto\u2010Y\u00e1\u00f1ez","sequence":"first","affiliation":[{"name":"Grupo de Investigaci\u00f3n en Salud, Funcionalidad y Actividad F\u00edsica (GISFAF), Kinesiolog\u00eda, Facultad de Ciencias de la Salud Universidad Aut\u00f3noma de Chile  Santiago Chile"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7974-4333","authenticated-orcid":false,"given":"Rodrigo","family":"Torres\u2010Castro","sequence":"additional","affiliation":[{"name":"Department of Physical Therapy, Faculty of Medicine University of Chile  Santiago Chile"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0005-1041-9088","authenticated-orcid":false,"given":"Sof\u00eda","family":"D\u00e1vila\u2010O\u00f1a","sequence":"additional","affiliation":[{"name":"Escuela de Salud Pontificia Universidad Cat\u00f3lica Del Ecuador  Manab\u00ed Ecuador"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mauricio","family":"Morales\u2010Satan","sequence":"additional","affiliation":[{"name":"Health Sciences Faculty Universidad Internacional SEK (UISEK)  Quito 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