{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,24]],"date-time":"2026-04-24T14:05:59Z","timestamp":1777039559193,"version":"3.51.4"},"reference-count":36,"publisher":"MDPI AG","issue":"20","license":[{"start":{"date-parts":[[2024,10,17]],"date-time":"2024-10-17T00:00:00Z","timestamp":1729123200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Portuguese Foundation for Science and Technology (FCT)","award":["UIDP\/05913\/2020"],"award-info":[{"award-number":["UIDP\/05913\/2020"]}]},{"name":"Portuguese Foundation for Science and Technology (FCT)","award":["UIDB04045\/2020"],"award-info":[{"award-number":["UIDB04045\/2020"]}]},{"name":"Portuguese Foundation for Science and Technology (FCT)","award":["UIDP\/MAT\/00212\/2020"],"award-info":[{"award-number":["UIDP\/MAT\/00212\/2020"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Applied Sciences"],"abstract":"<jats:p>This study aimed to forecast trends in swimming world records (WRs) and in the age of record holders. A total of 566 individual freestyle WRs (290 for males and 276 for females) were retrieved from open access websites. The frequency of observations in WRs in each decade and event was computed for males and females. The swimmers\u2019 chronological age was converted into decimal age at the time of breaking the world record. ARIMA forecasting models and exponential smoothing techniques were used to examine historical trends and predict future observations. The WRs improved over time, and there was a nuanced pattern in the age of world record holders. While certain events (50 m and 100 m) showed swimmers achieving records at older ages, others (e.g., 200 m, 400 m, 800 m, and 1500 m) displayed variations. Forecasting shows a continuing improvement in WRs in the upcoming years, with the age of male world record holders stabilizing in shorter events and decreasing in longer distance ones, while for females, general stabilization should be expected for the majority of competitive events.<\/jats:p>","DOI":"10.3390\/app14209492","type":"journal-article","created":{"date-parts":[[2024,10,17]],"date-time":"2024-10-17T09:14:03Z","timestamp":1729156443000},"page":"9492","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Trend Forecasting in Swimming World Records and in the Age of World Record Holders"],"prefix":"10.3390","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5502-1202","authenticated-orcid":false,"given":"M\u00e1rio J.","family":"Costa","sequence":"first","affiliation":[{"name":"Centre of Research, Education, Innovation, and Intervention in Sport (CIFI2D), and Porto Biomechanics Laboratory (LABIOMEP-UP), Faculty of Sport, University of Porto, 4050-4050 Porto, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8464-7527","authenticated-orcid":false,"given":"Luis","family":"Quinta-Nova","sequence":"additional","affiliation":[{"name":"Higher Agricultural School, Polytechnic University of Castelo Branco, 6000-084 Castelo Branco, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9209-7772","authenticated-orcid":false,"given":"Sandra","family":"Ferreira","sequence":"additional","affiliation":[{"name":"Department of Mathematics and Centre of Mathematics and Applications, University of Beira Interior, 6201-001 Covilh\u00e3, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0296-9707","authenticated-orcid":false,"given":"Aldo M.","family":"Costa","sequence":"additional","affiliation":[{"name":"Department of Sport Sciences, University of Beira Interior, 6201-001 Covilh\u00e3, Portugal"},{"name":"Research Center in Sport Sciences, Health Sciences and Human Development (CIDESD), 6201-001 Covilh\u00e3, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4592-8091","authenticated-orcid":false,"given":"Catarina C.","family":"Santos","sequence":"additional","affiliation":[{"name":"Centre of Research, Education, Innovation, and Intervention in Sport (CIFI2D), and Porto Biomechanics Laboratory (LABIOMEP-UP), Faculty of Sport, University of Porto, 4050-4050 Porto, Portugal"},{"name":"Higher Education School, Polytechnic of Coimbra, 3030-329 Coimbra, Portugal"},{"name":"Department of Sport Sciences, Higher Institute of Educational Sciences of the Douro (ISCE-Douro), 4560-547 Penafiel, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2024,10,17]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Costa, M.J., Marinho, D.A., Santos, C.C., Quinta-Nova, L., Costa, A.M., Silva, A.J., and Barbosa, T.M. 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