{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,16]],"date-time":"2026-04-16T19:40:34Z","timestamp":1776368434604,"version":"3.51.2"},"reference-count":48,"publisher":"Public Library of Science (PLoS)","issue":"3","license":[{"start":{"date-parts":[[2023,3,1]],"date-time":"2023-03-01T00:00:00Z","timestamp":1677628800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["www.plosone.org"],"crossmark-restriction":false},"short-container-title":["PLoS ONE"],"abstract":"<jats:p>We aimed at examining the criterion validity and sensitivity of heart-rate recovery (HR<jats:sub>Rec<\/jats:sub>) in profiling cardiorespiratory fitness in male recreational football players in the untrained and trained status, using endurance field-tests. Thirty-two male untrained subjects (age 40 \u00b1 6 years, VO<jats:sub>2max<\/jats:sub> 41.7 \u00b1 5.7 ml\u00b7kg<jats:sup>-1<\/jats:sup>\u00b7min<jats:sup>-1<\/jats:sup>, body mass 82.7 \u00b1 9.8 kg, stature 173.3 \u00b1 7.4 cm) participated in a 12-week (2\u20123 sessions per week) recreational football intervention and were tested pre- and post-intervention (i.e. untrained and trained status). The participants performed three intermittent field tests for aerobic performance assessment, namely Yo-Yo intermittent endurance level 1 (YYIE1) and level 2 (YYIE2) tests, and Yo-Yo intermittent recovery level 1 (YYIR1) test. VO<jats:sub>2max<\/jats:sub> was assessed by performing a progressive maximal treadmill test (TT) and maximal HR (HR<jats:sub>max<\/jats:sub>) determined as the maximal value across the testing conditions (i.e., Yo-Yo intermittent tests or TT). HR<jats:sub>Rec<\/jats:sub> was calculated as the difference between Yo-Yo tests\u2019 HR<jats:sub>peak<\/jats:sub> or HR<jats:sub>max<\/jats:sub> and HR at 30 s (HR<jats:sub>30<\/jats:sub>), 60 s (HR<jats:sub>60<\/jats:sub>) and 120 s (HR<jats:sub>120<\/jats:sub>) and considered as beats\u00b7min<jats:sup>-1<\/jats:sup> (absolute) and as % of tests\u2019 HR<jats:sub>peak<\/jats:sub> or HR<jats:sub>max<\/jats:sub> values. Significant post-intervention improvements (p&lt;0.0001) were shown in VO<jats:sub>2max<\/jats:sub> (8.6%) and Yo-Yo tests performance (23\u201335%). Trivial to small (p&gt;0.05) associations were found between VO<jats:sub>2max<\/jats:sub> and HR<jats:sub>Rec<\/jats:sub> (r = -0.05\u22120.27, p&gt;0.05) across the Yo-Yo tests, and training status either expressed as percentage of HR<jats:sub>peak<\/jats:sub> or HR<jats:sub>max<\/jats:sub>. The results of this study do not support the use of field-test derived HR<jats:sub>Rec<\/jats:sub> to track cardiorespiratory fitness and training status in adult male recreational football players.<\/jats:p>","DOI":"10.1371\/journal.pone.0282058","type":"journal-article","created":{"date-parts":[[2023,3,1]],"date-time":"2023-03-01T18:33:52Z","timestamp":1677695632000},"page":"e0282058","update-policy":"https:\/\/doi.org\/10.1371\/journal.pone.corrections_policy","source":"Crossref","is-referenced-by-count":3,"title":["Validity and sensitivity of field tests\u2019 heart-rate recovery assessment in recreational football players"],"prefix":"10.1371","volume":"18","author":[{"given":"Susana","family":"P\u00f3voas","sequence":"first","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1461-9838","authenticated-orcid":true,"given":"Peter","family":"Krustrup","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8320-6404","authenticated-orcid":true,"given":"Carlo","family":"Castagna","sequence":"additional","affiliation":[]}],"member":"340","published-online":{"date-parts":[[2023,3,1]]},"reference":[{"issue":"7","key":"pone.0282058.ref001","doi-asserted-by":"crossref","first-page":"1334","DOI":"10.1249\/MSS.0b013e318213fefb","article-title":"American College of Sports Medicine position stand. 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