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The aim of the present study was to compare performance and psychophysiological effects between light-guided, drafting, and nonassisted pacing conditions in distance runners. <jats:italic><jats:bold>Methods<\/jats:bold>:<\/jats:italic> Fifteen male middle- and long-distance runners of national and regional standard ran three 5000-m time trials in a counterbalanced order with the following pacing distribution: the first 4000\u00a0m and last 1000\u00a0m were covered at submaximal and maximal intensities, respectively. The 3 trials (conditions) were (1)\u00a0self-paced, (2)\u00a0guided by a light signal, and (3)\u00a0guided by a cyclist in front (drafting condition). Pace, heart rate, rating of perceived exertion, and affective valence were recorded every 500\u00a0m. <jats:italic><jats:bold>Results<\/jats:bold>:<\/jats:italic> No statistically significant differences were found between pacing-light and self-paced conditions. Running time was shorter in the drafting versus self-paced condition in the final 500-m section (<jats:italic>P<\/jats:italic>\u2009=\u2009.031; <jats:italic>d<\/jats:italic>\u2009=\u20090.76). No differences were found between drafting and light conditions. Similarly, whereas 9 out of 10 significant differences in terms of lower heart rate, or rating of perceived exertion, or higher affective valence responses were found in the drafting versus self-paced condition (<jats:italic>P<\/jats:italic>\u2009=\u2009.004\u2013.041; <jats:italic>d<\/jats:italic>\u2009=\u20090.63\u20131.39), only 4 were found across the tests in the drafting versus light condition (<jats:italic>P<\/jats:italic>\u2009=\u2009.005\u2013.016; <jats:italic>d<\/jats:italic>\u2009=\u20090.66\u20130.84). <jats:italic><jats:bold>Conclusion<\/jats:bold>:<\/jats:italic> Light-guided pacing did not influence performance or psychophysiological responses in distance runners during a 5000-m test, but drafting produced a large effect.<\/jats:p>","DOI":"10.1123\/ijspp.2024-0202","type":"journal-article","created":{"date-parts":[[2024,12,10]],"date-time":"2024-12-10T20:14:13Z","timestamp":1733861653000},"page":"149-155","source":"Crossref","is-referenced-by-count":2,"title":["Performance and Psychophysiological Effects of Light-Guided Pacing During a 5000-m Run"],"prefix":"10.1123","volume":"20","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7668-6844","authenticated-orcid":true,"given":"Arturo","family":"Casado","sequence":"first","affiliation":[{"name":"Sport Science Research Center, Rey Juan Carlos University, Fuenlabrada, Madrid, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Alberto","family":"Hornillos","sequence":"additional","affiliation":[{"name":"Centro de Estudios Ol\u00edmpicos del Comit\u00e9 Ol\u00edmpico Espa\u00f1ol, Madrid, Spain"},{"name":"Club Atletismo San Ildefonso, Toledo, Spain"},{"name":"Universidad Cat\u00f3lica San Antonio de Murcia, Murcia, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Carl","family":"Foster","sequence":"additional","affiliation":[{"name":"Department of Exercise and Sports Science, University of Wisconsin-La Crosse, La Crosse, WI, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1319-3334","authenticated-orcid":true,"given":"Luis E.","family":"Ranieri","sequence":"additional","affiliation":[{"name":"Sport Science Research Center, Rey Juan Carlos University, Fuenlabrada, Madrid, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9039-8574","authenticated-orcid":true,"given":"Andrew","family":"Renfree","sequence":"additional","affiliation":[{"name":"School of Sport and Exercise Science, University of Worcester, Worcester, United Kingdom"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ra\u00fal","family":"Dom\u00ednguez","sequence":"additional","affiliation":[{"name":"Universidad de Sevilla, Seville, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"100","reference":[{"issue":"2","key":"r1","series-title":"Sports Med","doi-asserted-by":"publisher","first-page":"77","DOI":"10.2165\/00007256-199417020-00001","article-title":"Pacing strategy and athletic performance","volume":"17","author":"Foster C","year":"1994","unstructured":"Foster C, Schrager M, Snyder AC, Thompson NN. 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