{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,9]],"date-time":"2026-02-09T18:24:19Z","timestamp":1770661459914,"version":"3.49.0"},"reference-count":0,"publisher":"Human Kinetics","issue":"3","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2017,3]]},"abstract":"<jats:sec sec-type=\"purpose\"><jats:title><jats:italic>Purpose:<\/jats:italic><\/jats:title><jats:p>Stride-to-stride fluctuations in running-stride interval display long-range correlations that break down in the presence of fatigue accumulated during an exhaustive run. The purpose of the study was to investigate whether long-range correlations in running-stride interval were reduced by fatigue accumulated during prolonged exposure to a high training load (functional overreaching) and were associated with decrements in performance caused by functional overreaching.<\/jats:p><\/jats:sec><jats:sec sec-type=\"methods\"><jats:title><jats:italic>Methods:<\/jats:italic><\/jats:title><jats:p>Ten trained male runners completed 7 d of light training (LT<jats:sub>7<\/jats:sub>), 14 d of heavy training (HT<jats:sub>14<\/jats:sub>) designed to induce a state of functional overreaching, and 10 d of light training (LT<jats:sub>10<\/jats:sub>) in a fixed order. Running-stride intervals and 5-km time-trial (5TT) performance were assessed after each training phase. The strength of long-range correlations in running-stride interval was assessed at 3 speeds (8, 10.5, and 13 km\/h) using detrended fluctuation analysis.<\/jats:p><\/jats:sec><jats:sec sec-type=\"results\"><jats:title><jats:italic>Results:<\/jats:italic><\/jats:title><jats:p>Relative to performance post-LT<jats:sub>7<\/jats:sub>, time to complete the 5TT was increased after HT<jats:sub>14<\/jats:sub> (+18 s; <jats:italic>P<\/jats:italic> &lt; .05) and decreased after LT<jats:sub>10<\/jats:sub> (\u201320 s; <jats:italic>P<\/jats:italic> = .03), but stride-interval long-range correlations remained unchanged at HT<jats:sub>14<\/jats:sub> and LT<jats:sub>10<\/jats:sub> (<jats:italic>P<\/jats:italic> &gt; .50). Changes in stride-interval long-range correlations measured at a 10.5-km\/h running speed were negatively associated with changes in 5TT performance (<jats:italic>r<\/jats:italic> \u2013.46; <jats:italic>P<\/jats:italic> = .03).<\/jats:p><\/jats:sec><jats:sec sec-type=\"conclusions\"><jats:title><jats:italic>Conclusions:<\/jats:italic><\/jats:title><jats:p>Runners who were most affected by the prolonged exposure to high training load (as evidenced by greater reductions in 5TT performance) experienced the greatest reductions in stride-interval long-range correlations. Measurement of stride-interval long-range correlations may be useful for monitoring the effect of high training loads on athlete performance.<\/jats:p><\/jats:sec>","DOI":"10.1123\/ijspp.2015-0618","type":"journal-article","created":{"date-parts":[[2016,6,13]],"date-time":"2016-06-13T20:40:26Z","timestamp":1465850426000},"page":"357-363","source":"Crossref","is-referenced-by-count":25,"title":["Tracking Performance Changes With Running-Stride Variability When Athletes Are Functionally Overreached"],"prefix":"10.1123","volume":"12","author":[{"given":"Joel T.","family":"Fuller","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Clint R.","family":"Bellenger","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Dominic","family":"Thewlis","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"John","family":"Arnold","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rebecca L.","family":"Thomson","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Margarita D.","family":"Tsiros","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Eileen Y.","family":"Robertson","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jonathan D.","family":"Buckley","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"100","container-title":["International Journal of Sports Physiology and Performance"],"original-title":[],"link":[{"URL":"https:\/\/journals.humankinetics.com\/view\/journals\/ijspp\/12\/3\/article-p357.xml","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.humankinetics.com\/downloadpdf\/journals\/ijspp\/12\/3\/article-p357.xml","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2022,5,19]],"date-time":"2022-05-19T18:32:55Z","timestamp":1652985175000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.humankinetics.com\/view\/journals\/ijspp\/12\/3\/article-p357.xml"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2017,3]]},"references-count":0,"journal-issue":{"issue":"3"},"URL":"https:\/\/doi.org\/10.1123\/ijspp.2015-0618","relation":{},"ISSN":["1555-0265","1555-0273"],"issn-type":[{"value":"1555-0265","type":"print"},{"value":"1555-0273","type":"electronic"}],"subject":[],"published":{"date-parts":[[2017,3]]}}}