{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,18]],"date-time":"2026-09-18T07:02:21Z","timestamp":1789714941145,"version":"4.0.1"},"reference-count":38,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2024,12,11]],"date-time":"2024-12-11T00:00:00Z","timestamp":1733875200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"},{"start":{"date-parts":[[2024,12,11]],"date-time":"2024-12-11T00:00:00Z","timestamp":1733875200000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["European Journal of Sport Science"],"published-print":{"date-parts":[[2025,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    This study aimed to examine sex differences in acute caffeine intake on repeated sprint performance. Fifty\u2010two resistance\u2010trained individuals (age: 24.6\u00a0\u00b1\u00a04.5\u00a0years and sex (female\/male): 26\/26) participated in a randomized, triple\u2010blind, cross\u2010over, and placebo\u2010controlled study. Participants ingested 3\u00a0mg\/kg caffeine or placebo and, after 60\u00a0min, performed 4 Wingate tests (Wt), consisting of a 30 s all\u2010out lower\u2010body sprint against an individualized resisted load, with 90\u00a0s rest periods between sprints. Mean (W\n                    <jats:sub>mean<\/jats:sub>\n                    ) and peak (W\n                    <jats:sub>peak<\/jats:sub>\n                    ) power showed an interaction between sprint and supplement (\n                    <jats:italic>P<\/jats:italic>\n                    \u00a0=\u00a00.038,\n                    <jats:italic>\u03b7<\/jats:italic>\n                    <jats:sub>\n                      <jats:italic>p<\/jats:italic>\n                    <\/jats:sub>\n                    <jats:sup>2<\/jats:sup>\n                    \u00a0=\u00a00.095 and\n                    <jats:italic>P<\/jats:italic>\n                    \u00a0&lt;\u00a00.001,\n                    <jats:italic>\u03b7<\/jats:italic>\n                    <jats:sub>\n                      <jats:italic>p<\/jats:italic>\n                    <\/jats:sub>\n                    <jats:sup>2<\/jats:sup>\n                    \u00a0=\u00a00.157, respectively), but only W\n                    <jats:sub>peak<\/jats:sub>\n                    reported a supplement and sex interaction (\n                    <jats:italic>P<\/jats:italic>\n                    \u00a0=\u00a00.049 and\n                    <jats:italic>\u03b7<\/jats:italic>\n                    <jats:sub>\n                      <jats:italic>p<\/jats:italic>\n                    <\/jats:sub>\n                    <jats:sup>2<\/jats:sup>\n                    \u00a0=\u00a00.166). Caffeine increased W\n                    <jats:sub>mean<\/jats:sub>\n                    in Wt3 (3.5%,\n                    <jats:italic>P<\/jats:italic>\n                    \u00a0=\u00a00.004, and\n                    <jats:italic>g<\/jats:italic>\n                    \u00a0=\u00a01.059) and Wt4 (3.9%,\n                    <jats:italic>P<\/jats:italic>\n                    \u00a0=\u00a00.012, and\n                    <jats:italic>g<\/jats:italic>\n                    \u00a0=\u00a01.091) compared to placebo. Whereas, for W\n                    <jats:sub>peak<\/jats:sub>\n                    , caffeine increased W\n                    <jats:sub>peak<\/jats:sub>\n                    in the Wt1 (2.9%,\n                    <jats:italic>P<\/jats:italic>\n                    \u00a0=\u00a00.050 and\n                    <jats:italic>g<\/jats:italic>\n                    \u00a0=\u00a01.01) and Wt2 (3.2%,\n                    <jats:italic>P<\/jats:italic>\n                    \u00a0=\u00a00.050, and\n                    <jats:italic>g<\/jats:italic>\n                    \u00a0=\u00a01.01) in males and in Wt3 (5.2%,\n                    <jats:italic>P<\/jats:italic>\n                    \u00a0=\u00a00.008, and\n                    <jats:italic>g<\/jats:italic>\n                    \u00a0=\u00a01.79) and Wt4 (8.1%,\n                    <jats:italic>P<\/jats:italic>\n                    \u00a0=\u00a00.004, and\n                    <jats:italic>g<\/jats:italic>\n                    \u00a0=\u00a02.27) in female participants compared to placebo. No statistically significant sex differences were found in time to reach W\n                    <jats:sub>peak<\/jats:sub>\n                    , fatigue index. Acute caffeine intake stimulated a similar ergogenic effect on repeated sprint performance in men and women, except in peak power output, where caffeine increased performance during the first sprints in males and the last sprints in female participants.\n                  <\/jats:p>","DOI":"10.1002\/ejsc.12233","type":"journal-article","created":{"date-parts":[[2024,12,11]],"date-time":"2024-12-11T20:39:13Z","timestamp":1733949553000},"source":"Crossref","is-referenced-by-count":8,"title":["Sex differences in the acute effect of caffeine on repeated sprint performance: A randomized controlled trial"],"prefix":"10.1002","volume":"25","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0220-6240","authenticated-orcid":false,"given":"Alberto","family":"P\u00e9rez\u2010L\u00f3pez","sequence":"first","affiliation":[{"name":"Universidad de Alcal\u00e1 Facultad de Medicina y Ciencias de la Salud Departamento de Ciencias Biom\u00e9dicas  Madrid 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