{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,6]],"date-time":"2026-01-06T02:20:46Z","timestamp":1767666046412,"version":"build-2065373602"},"reference-count":69,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2022,9,16]],"date-time":"2022-09-16T00:00:00Z","timestamp":1663286400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001871","name":"the Portuguese Foundation for Science and Technology","doi-asserted-by":"publisher","award":["UIDP\/04748\/2020"],"award-info":[{"award-number":["UIDP\/04748\/2020"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Biology"],"abstract":"<jats:p>This study aimed (i) to verify if using and carrying a portable gas analyzer (PGA) constrained the performance of school children on the multistage 20-m shuttle run test (20mSRT), (ii) to verify which peak oxygen consumption (VO2peak) predictive equations have greater agreement with VO2peak values measured by direct oximetry using the 20mSRT. The study participants were 130 children ((67 boys (age 7.76 \u00b1 0.97 years) and 63 girls (age 7.59 \u00b1 0.91 years)), who performed two randomized trials of the 20mSRT with and without a PGA. Twenty-two predictive equations predicted the VO2peak values through the performance of the test with and without a PGA. Without a PGA, lower values of maximal speed (MS), total laps (TL), and total time (TT) were found for girls than for boys with a PGA. Only six equations were considered to correctly predict VO2peak. In general, higher MS, TL, and TT values were found with the use of a PGA. The predicted VO2peak values from the 20mSRT varied significantly among the published predictive equations. Therefore, we suggest that the six equations that presented satisfactory accuracy could be practically used to examine cardiorespiratory fitness in schools and in research with large populations when direct measurement of VO2peak is not feasible.<\/jats:p>","DOI":"10.3390\/biology11091356","type":"journal-article","created":{"date-parts":[[2022,9,18]],"date-time":"2022-09-18T22:12:43Z","timestamp":1663539163000},"page":"1356","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["The Multistage 20-m Shuttle Run Test for Predicting VO2Peak in 6\u20139-Year-Old Children: A Comparison with VO2Peak Predictive Equations"],"prefix":"10.3390","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4357-4269","authenticated-orcid":false,"given":"Jo\u00e3o Paulo","family":"Brito","sequence":"first","affiliation":[{"name":"Sports Science School of Rio Maior\u2013Polytechnic Institute of Santar\u00e9m, 2040-413 Rio Maior, Portugal"},{"name":"Life Quality Research Centre, 2040-413 Rio Maior, Portugal"},{"name":"Research Centre in Sport Sciences, Health Sciences and Human Development, 5001-801 Vila Real, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5855-1372","authenticated-orcid":false,"given":"Christophe","family":"Domingos","sequence":"additional","affiliation":[{"name":"Life Quality Research Centre, 2040-413 Rio Maior, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4581-422X","authenticated-orcid":false,"given":"Ana F\u00e1tima","family":"Pereira","sequence":"additional","affiliation":[{"name":"Life Quality Research Centre, 2040-413 Rio Maior, Portugal"},{"name":"Polytechnic Institute of Set\u00fabal, Campus do IPS, 2910-761 Set\u00fabal, Portugal"}]},{"given":"Jo\u00e3o","family":"Mout\u00e3o","sequence":"additional","affiliation":[{"name":"Sports Science School of Rio Maior\u2013Polytechnic Institute of Santar\u00e9m, 2040-413 Rio Maior, Portugal"},{"name":"Life Quality Research Centre, 2040-413 Rio Maior, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6671-6229","authenticated-orcid":false,"given":"Rafael","family":"Oliveira","sequence":"additional","affiliation":[{"name":"Sports Science School of Rio Maior\u2013Polytechnic Institute of Santar\u00e9m, 2040-413 Rio Maior, Portugal"},{"name":"Life Quality Research Centre, 2040-413 Rio Maior, Portugal"},{"name":"Research Centre in Sport Sciences, Health Sciences and Human Development, 5001-801 Vila Real, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2022,9,16]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"2588","DOI":"10.1080\/02640414.2020.1794255","article-title":"Validation of Equations to Estimate the Peak Oxygen Uptake in Adolescents from 20 Metres Shuttle Run Test","volume":"38","author":"Mota","year":"2020","journal-title":"J. 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