{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,1]],"date-time":"2026-05-01T10:00:35Z","timestamp":1777629635119,"version":"3.51.4"},"reference-count":53,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2026,1,21]],"date-time":"2026-01-21T00:00:00Z","timestamp":1768953600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,1,21]],"date-time":"2026-01-21T00:00:00Z","timestamp":1768953600000},"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":[[2026,2]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    This study aimed to investigate the independent and combined effects of caffeine and static stretching (SS) on maximal ball velocity and 30\u2010m sprint performance. Sixteen male amateur football players performed 30\u2010m sprint and an instep kicking ball velocity test under six conditions. The six conditions were control, SS only, placebo only, placebo combined with SS (PLA\u00a0+\u00a0SS), caffeine only, and caffeine combined with SS (CAF\u00a0+\u00a0SS). A repeated measures ANOVA revealed no significant main effect of condition on maximal ball velocity (\n                    <jats:italic>F<\/jats:italic>\n                    (5, 75)\u00a0=\u00a01.11,\n                    <jats:italic>p<\/jats:italic>\n                    \u00a0=\u00a00.36,\n                    <jats:italic>\u03b7<\/jats:italic>\n                    <jats:sup>2<\/jats:sup>\n                    <jats:sub>p<\/jats:sub>\n                    \u00a0=\u00a00.069). In contrast, a significant main effect of condition was observed for 30\u2010m sprint performance (\n                    <jats:italic>F<\/jats:italic>\n                    (5, 75)\u00a0=\u00a04.57,\n                    <jats:italic>p<\/jats:italic>\n                    \u00a0=\u00a00.001,\n                    <jats:italic>\u03b7<\/jats:italic>\n                    <jats:sup>2<\/jats:sup>\n                    <jats:sub>p<\/jats:sub>\n                    \u00a0=\u00a00.23). Our findings showed that the SS condition resulted in similar sprint performance compared to all other conditions (\n                    <jats:italic>p<\/jats:italic>\n                    \u00a0\u2265\u00a00.093) except the caffeine condition (\n                    <jats:italic>p<\/jats:italic>\n                    \u00a0=\u00a00.009). In contrast, the caffeine condition led to faster sprint performance compared to all conditions (\n                    <jats:italic>p<\/jats:italic>\n                    \u00a0\u2264\u00a00.010) except CAF\u00a0+\u00a0SS (\n                    <jats:italic>p<\/jats:italic>\n                    \u00a0=\u00a00.184). Additionally, sprint performances in the SS and CAF\u00a0+\u00a0SS conditions were similar (\n                    <jats:italic>p<\/jats:italic>\n                    \u00a0=\u00a00.093). A large effect size (0.94) was observed between the control and CAF conditions, whereas a moderate effect size (0.54) was found when comparing caffeine and CAF\u00a0+\u00a0SS conditions. These findings indicate that caffeine intake enhances sprint performance; however, the CAF\u00a0+\u00a0SS combination appears to reduce this effect, making it less effective. Although SS does not directly impair sprint performance, it may have the potential to diminish the ergogenic effects of caffeine.\n                  <\/jats:p>","DOI":"10.1002\/ejsc.70064","type":"journal-article","created":{"date-parts":[[2026,1,21]],"date-time":"2026-01-21T12:32:17Z","timestamp":1768998737000},"source":"Crossref","is-referenced-by-count":0,"title":["Static Stretching Acutely Reduces the Ergogenic Effects of Caffeine on Sprint Performance but Not Maximal Ball Velocity in Football Players"],"prefix":"10.1002","volume":"26","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3682-3135","authenticated-orcid":false,"given":"Refik","family":"\u00c7abuk","sequence":"first","affiliation":[{"name":"Department of Coaching Education Ya\u015far Do\u011fu Faculty of Sports Sciences Ondokuz May\u0131s University  Samsun T\u00fcrkiye"},{"name":"College of Health and Life Sciences Hamad Bin Khalifa University  Doha Qatar"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5573-1423","authenticated-orcid":false,"given":"\u0130zzet","family":"\u0130slamo\u011flu","sequence":"additional","affiliation":[{"name":"Department of Coaching Education Ya\u015far Do\u011fu Faculty of Sports Sciences Ondokuz May\u0131s University  Samsun T\u00fcrkiye"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2421-0067","authenticated-orcid":false,"given":"Onur","family":"Demirarar","sequence":"additional","affiliation":[{"name":"Department of Physical Education and Sports Sciences Gendarmerie and Coast Guard Academy  Ankara T\u00fcrkiye"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Faruk","family":"Albay","sequence":"additional","affiliation":[{"name":"Department of Sport Management Ya\u015far Do\u011fu Faculty of Sports Sciences Ondokuz May\u0131s University  Samsun T\u00fcrkiye"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2784-2980","authenticated-orcid":false,"given":"Y\u0131ld\u0131r\u0131m","family":"Kayacan","sequence":"additional","affiliation":[{"name":"Department of Coaching Education Ya\u015far Do\u011fu Faculty of Sports Sciences Ondokuz May\u0131s University  Samsun T\u00fcrkiye"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2026,1,21]]},"reference":[{"key":"e_1_2_11_2_1","doi-asserted-by":"publisher","DOI":"10.3389\/fnut.2025.1608893"},{"key":"e_1_2_11_3_1","doi-asserted-by":"publisher","DOI":"10.3390\/nu16091253"},{"key":"e_1_2_11_4_1","doi-asserted-by":"publisher","DOI":"10.1080\/19346182.2014.893348"},{"key":"e_1_2_11_5_1","doi-asserted-by":"publisher","DOI":"10.1519\/JSC.0000000000000568"},{"key":"e_1_2_11_6_1","doi-asserted-by":"publisher","DOI":"10.1123\/ijsnem.17.3.259"},{"key":"e_1_2_11_7_1","doi-asserted-by":"publisher","DOI":"10.1139\/apnm\u20102015\u20100235"},{"key":"e_1_2_11_8_1","doi-asserted-by":"publisher","DOI":"10.5114\/jhk\/207251"},{"issue":"4","key":"e_1_2_11_9_1","first-page":"472","article-title":"Effect of Caffeine Supplementation on Repeated Sprint Running Performance","volume":"48","author":"Carr A.","year":"2008","journal-title":"Journal of Sports Medicine and Physical Fitness"},{"key":"e_1_2_11_10_1","doi-asserted-by":"publisher","DOI":"10.3389\/fphys.2019.01468"},{"key":"e_1_2_11_11_1","doi-asserted-by":"publisher","DOI":"10.2165\/11317770\u2010000000000\u201000000"},{"key":"e_1_2_11_12_1","doi-asserted-by":"publisher","DOI":"10.1152\/ajpregu.00386.2002"},{"issue":"2","key":"e_1_2_11_13_1","first-page":"28","article-title":"Effect of Post\u2010Activation Potentiation and Carbohydrate Mouth Rinse on Repeated Sprint Ability in University Futsal Players","volume":"23","author":"Oliveira J. 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