{"id":5335,"date":"2017-05-25T11:50:07","date_gmt":"2017-05-25T09:50:07","guid":{"rendered":"https:\/\/www.famelab.gr\/?p=5335"},"modified":"2025-10-30T08:20:56","modified_gmt":"2025-10-30T08:20:56","slug":"defining-the-determinants-of-endurance-running-performance-in-the-heat","status":"publish","type":"post","link":"https:\/\/famelab.gr\/el\/defining-the-determinants-of-endurance-running-performance-in-the-heat\/","title":{"rendered":"Defining the determinants of endurance running performance in the heat"},"content":{"rendered":"<p><span style=\"color: #000000;\"> <a href=\"https:\/\/famelab.gr\/el\/defining-the-determinants-of-endurance-running-performance-in-the-heat\/\" target=\"_blank\" rel=\"noopener noreferrer\"><img decoding=\"async\" class=\"alignright wp-image-4102 size-medium\" title=\"FAME Lab - Defining the determinants of endurance running performance in the heat\" src=\"https:\/\/www.famelab.gr\/wp-content\/uploads\/2021\/07\/36-300x114.jpeg\" alt=\"FAME Lab - Defining the determinants of endurance running performance in the heat\" width=\"300\" height=\"114\" \/><\/a>James CA, Hayes M, Willmott AGB, Gibson OR, <a href=\"https:\/\/famelab.gr\/el\/people\/\" target=\"_blank\" rel=\"noopener noreferrer\">Flouris AD<\/a>, Schlader ZJ, Maxwell NS. Defining the determinants of endurance running performance in the heat. Temperature (Austin). 2017 May 25;4(3):314-329. doi: 10.1080\/23328940.2017.1333189. PMID: 28944273; PMCID: PMC5605161.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>Abstract:<\/strong><\/span><\/p>\n<p>In cool conditions, physiologic markers accurately predict endurance performance, but it is unclear whether thermal strain and perceived thermal strain modify the strength of these relationships. This study examined the relationships between traditional determinants of endurance performance and time to complete a 5-km time trial in the heat. Seventeen club runners completed graded exercise tests (GXT) in hot (GXTHOT; 32\u00b0C, 60% RH, 27.2\u00b0C WBGT) and cool conditions (GXTCOOL; 13\u00b0C, 50% RH, 9.3\u00b0C WBGT) to determine maximal oxygen uptake (V\u0307O2max), running economy (RE), velocity at V\u0307O2max (vV\u0307O2max), and running speeds corresponding to the lactate threshold (LT, 2 mmol.l\u22121) and lactate turnpoint (LTP, 4 mmol.l\u22121).<\/p>\n<p>Simultaneous multiple linear regression was used to predict 5 km time, using these determinants, indicating neither GXTHOT (R2 = 0.72) nor GXTCOOL (R2 = 0.86) predicted performance in the heat as strongly has previously been reported in cool conditions. vV\u0307O2max was the strongest individual predictor of performance, both when assessed in GXTHOT (r = \u22120.83) and GXTCOOL (r = \u22120.90). The GXTs revealed the following correlations for individual predictors in GXTHOT; V\u0307O2max r = \u22120.7, RE r = 0.36, LT r = \u22120.77, LTP r = \u22120.78 and in GXTCOOL; V\u0307O2max r = \u22120.67, RE r = 0.62, LT r = \u22120.79, LTP r = \u22120.8. These data indicate (i) GXTHOT does not predict 5 km running performance in the heat as strongly as a GXTCOOL, (ii) as in cool conditions, vV\u0307O2max may best predict running performance in the heat.<\/p>\n<p><span style=\"color: #000000;\"><strong>Full Text Link: <\/strong><\/span><\/p>\n<p><a href=\"https:\/\/www.tandfonline.com\/doi\/full\/10.1080\/23328940.2017.1333189\" target=\"_blank\" rel=\"noopener noreferrer\">https:\/\/www.tandfonline.com\/doi\/full\/10.1080\/23328940.2017.1333189<\/a><\/p>\n<p><span style=\"color: #000000;\"><strong>Download PDF:<\/strong><\/span><\/p>\n<p><a href=\"https:\/\/www.famelab.gr\/wp-content\/uploads\/2022\/04\/Defining-the-determinants-of-endurance-running-performance-in-the-heat_2017.pdf\" target=\"_blank\" rel=\"noopener noreferrer\">https:\/\/www.famelab.gr\/wp-content\/uploads\/2022\/04\/Defining-the-determinants-of-endurance-running-performance-in-the-heat_2017.pdf<\/a><\/p>\n<p><img decoding=\"async\" class=\"alignnone wp-image-8302 size-full\" src=\"https:\/\/www.famelab.gr\/wp-content\/uploads\/2021\/11\/Line.png\" alt=\"\" width=\"1316\" height=\"1\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"<p>James CA, Hayes M, Willmott AGB, Gibson OR, Flouris AD, Schlader ZJ, Maxwell NS. Defining the determinants of endurance running performance in the heat. Temperature (Austin). 2017 May 25;4(3):314-329. doi: 10.1080\/23328940.2017.1333189. PMID: 28944273; PMCID: PMC5605161. Abstract: In cool conditions, physiologic markers accurately predict endurance performance, but it is unclear whether thermal strain and perceived thermal [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[42],"tags":[],"class_list":["post-5335","post","type-post","status-publish","format-standard","hentry","category-fame-lab-publications-2017"],"_links":{"self":[{"href":"https:\/\/famelab.gr\/el\/wp-json\/wp\/v2\/posts\/5335","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/famelab.gr\/el\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/famelab.gr\/el\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/famelab.gr\/el\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/famelab.gr\/el\/wp-json\/wp\/v2\/comments?post=5335"}],"version-history":[{"count":1,"href":"https:\/\/famelab.gr\/el\/wp-json\/wp\/v2\/posts\/5335\/revisions"}],"predecessor-version":[{"id":16603,"href":"https:\/\/famelab.gr\/el\/wp-json\/wp\/v2\/posts\/5335\/revisions\/16603"}],"wp:attachment":[{"href":"https:\/\/famelab.gr\/el\/wp-json\/wp\/v2\/media?parent=5335"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/famelab.gr\/el\/wp-json\/wp\/v2\/categories?post=5335"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/famelab.gr\/el\/wp-json\/wp\/v2\/tags?post=5335"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}