{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,4]],"date-time":"2026-04-04T04:37:32Z","timestamp":1775277452956,"version":"3.50.1"},"reference-count":22,"publisher":"Wiley","issue":"16","license":[{"start":{"date-parts":[[2024,8,16]],"date-time":"2024-08-16T00:00:00Z","timestamp":1723766400000},"content-version":"vor","delay-in-days":15,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["physoc.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Physiological Reports"],"published-print":{"date-parts":[[2024,8]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Tolerance to high\u2010intensity constant power exercise can be characterized by the hyperbolic power\u2010duration (or velocity\u2013duration) relationship. The hyperbola is defined by the asymptote (critical power or velocity) and the curvature constant (<jats:italic>W<\/jats:italic>\u2032 or <jats:italic>D<\/jats:italic>\u2032). The effects of thermoregulatory stress on middle\u2010distance running performance are equivocal\u2014possibly due to the complexities of the hyperbolic velocity\u2013duration relationship for these relatively short duration events. We aimed to measure the effects of heat stress on the velocity\u2013duration relationship in amateur runners. Fifteen participants (23\u2009\u00b1\u20096\u2009years) completed a series of constant\u2010velocity running bouts to intolerance in three heat indices (MILD: 20\u00b0C, VERY HOT: 38\u00b0C, EXTREME: 55\u00b0C). Critical velocity (CV) in MILD (3.52\u2009\u00b1\u20090.86\u2009m\/s) was higher than VERY HOT (3.39\u2009\u00b1\u20090.82\u2009m\/s) and EXTREME (3.29\u2009\u00b1\u20091.05\u2009m\/s; F[2.28]\u2009=\u20093.80, <jats:italic>p\u2009&lt;<\/jats:italic>\u20090.035) with no effect of thermal stress on <jats:italic>D<\/jats:italic>\u2032 (F[2.28]\u2009=\u20092.48, <jats:italic>p\u2009=<\/jats:italic>\u20090.11). In amateur competitive\/recreational runners, heat stress of \u226538\u00b0C heat index negatively affected CV. Thus, even during relatively short events, such as middle\u2010distance running where fluid loss is not a primary concern, heat stress may negatively impact performance.<\/jats:p>","DOI":"10.14814\/phy2.70013","type":"journal-article","created":{"date-parts":[[2024,8,17]],"date-time":"2024-08-17T06:39:45Z","timestamp":1723876785000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Heat stress and the velocity\u2013duration relationship in amateur runners"],"prefix":"10.14814","volume":"12","author":[{"given":"Eric","family":"Leslie","sequence":"first","affiliation":[{"name":"School of Exercise &amp; Nutritional Sciences San Diego State University  San Diego California USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jyotika","family":"Erram","sequence":"additional","affiliation":[{"name":"School of Exercise &amp; Nutritional Sciences San Diego State University  San Diego California USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2175-3445","authenticated-orcid":false,"given":"Daniel T.","family":"Cannon","sequence":"additional","affiliation":[{"name":"School of Exercise &amp; Nutritional Sciences San Diego State University  San Diego California USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2024,8,16]]},"reference":[{"key":"e_1_2_10_2_1","doi-asserted-by":"publisher","DOI":"10.1289\/ehp.1206273"},{"key":"e_1_2_10_3_1","doi-asserted-by":"publisher","DOI":"10.1249\/MSS.0b013e31802fa199"},{"key":"e_1_2_10_4_1","doi-asserted-by":"publisher","DOI":"10.1007\/s004210050521"},{"key":"e_1_2_10_5_1","doi-asserted-by":"publisher","DOI":"10.1055\/s-2007-1025043"},{"key":"e_1_2_10_6_1","doi-asserted-by":"publisher","DOI":"10.1249\/JES.0000000000000043"},{"key":"e_1_2_10_7_1","doi-asserted-by":"publisher","DOI":"10.1007\/s40279-014-0277-4"},{"key":"e_1_2_10_8_1","doi-asserted-by":"publisher","DOI":"10.1038\/116544a0"},{"key":"e_1_2_10_9_1","doi-asserted-by":"publisher","DOI":"10.1152\/japplphysiol.00253.2021"},{"key":"e_1_2_10_10_1","doi-asserted-by":"publisher","DOI":"10.3390\/ijerph18179193"},{"key":"e_1_2_10_11_1","doi-asserted-by":"publisher","DOI":"10.1249\/MSS.0b013e3181666ed7"},{"key":"e_1_2_10_12_1","doi-asserted-by":"publisher","DOI":"10.1152\/jappl.2001.91.3.1055"},{"key":"e_1_2_10_13_1","doi-asserted-by":"publisher","DOI":"10.1002\/cphy.c130012"},{"key":"e_1_2_10_14_1","doi-asserted-by":"publisher","DOI":"10.1113\/expphysiol.2010.054213"},{"key":"e_1_2_10_15_1","doi-asserted-by":"publisher","DOI":"10.1136\/bjsports-2016-096579"},{"key":"e_1_2_10_16_1","doi-asserted-by":"publisher","DOI":"10.1249\/MSS.0000000000000939"},{"key":"e_1_2_10_17_1","doi-asserted-by":"publisher","DOI":"10.1186\/s40798-022-00430-1"},{"key":"e_1_2_10_18_1","volume-title":"The heat index \u201cequation\u201d (or, more than you ever wanted to know about heat index) (technical report)","author":"Rothfusz L. 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Part I: A temperature\u2010humidity index based on human physiology and clothing","volume":"18","author":"Steadman R.","year":"1979","journal-title":"Science"},{"key":"e_1_2_10_21_1","doi-asserted-by":"publisher","DOI":"10.1249\/mss.0b013e31802dd3e6"},{"key":"e_1_2_10_22_1","doi-asserted-by":"publisher","DOI":"10.1249\/MSS.0b013e318177871a"},{"key":"e_1_2_10_23_1","doi-asserted-by":"publisher","DOI":"10.1055\/s-0031-1295444"}],"container-title":["Physiological Reports"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/physoc.onlinelibrary.wiley.com\/doi\/pdf\/10.14814\/phy2.70013","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2024,8,28]],"date-time":"2024-08-28T09:58:47Z","timestamp":1724839127000},"score":1,"resource":{"primary":{"URL":"https:\/\/physoc.onlinelibrary.wiley.com\/doi\/10.14814\/phy2.70013"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2024,8]]},"references-count":22,"journal-issue":{"issue":"16","published-print":{"date-parts":[[2024,8]]}},"alternative-id":["10.14814\/phy2.70013"],"URL":"https:\/\/doi.org\/10.14814\/phy2.70013","archive":["Portico"],"relation":{},"ISSN":["2051-817X","2051-817X"],"issn-type":[{"value":"2051-817X","type":"print"},{"value":"2051-817X","type":"electronic"}],"subject":[],"published":{"date-parts":[[2024,8]]},"assertion":[{"value":"2024-02-23","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2024-08-07","order":2,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2024-08-16","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}],"article-number":"e70013"}}