{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,5]],"date-time":"2026-10-05T16:08:35Z","timestamp":1791216515071,"version":"4.1.0"},"reference-count":0,"publisher":"Human Kinetics","issue":"2","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2016,3]]},"abstract":"<jats:sec sec-type=\"purpose\"><jats:title>Purpose:<\/jats:title><jats:p>Caffeine can be beneficial during endurance and repeated-sprint exercise in able-bodied individuals performing leg or wholebody exercise. However, little evidence exists regarding its effects during upper-body exercise. This study therefore aimed to investigate the effects of caffeine on sprint (SPR) and 4-min maximal-push (PUSH) performance in wheelchair sportsmen.<\/jats:p><\/jats:sec><jats:sec sec-type=\"methods\"><jats:title>Methods:<\/jats:title><jats:p>Using a double-blind, placebo-controlled, crossover design, 12 male wheelchair rugby players (age 30.0 \u00b1 7.7 y, body mass 69.6 \u00b1 15.3 kg, training 11.1 \u00b1 3.5 h\/wk) completed 2 exercise trials, separated by 7\u201314 d, 70 min after ingestion of 4 mg\/kg caffeine (CAF) or dextrose placebo (PLA). Each trial consisted of four 4-min PUSHes and 3 sets of 3 \u00d7 20-m SPRs, each separated by 4 min rest. Participants responded to the Felt Arousal (a measure of perceived arousal), Feeling (a measure of the affective dimension of pleasure\/displeasure), and rating-of-perceived-exertion (RPE) scales. Salivary caffeine secretion rates were measured.<\/jats:p><\/jats:sec><jats:sec sec-type=\"results\"><jats:title>Results:<\/jats:title><jats:p>Average SPR times were faster during CAF than PLA during SPR 1 and SPR 2 (<jats:italic>P<\/jats:italic> = .037 and .016). There was no influence of supplementation on PUSHes 2\u20134 (<jats:italic>P<\/jats:italic> &gt; .099); however, participants pushed significantly farther during PUSH 1 after CAF than after PLA (mean \u00b1 SD 677 \u00b1 107 and 653 \u00b1 118 m, <jats:italic>P<\/jats:italic> = .047). There was no influence of CAF on arousal or RPE scores (<jats:italic>P<\/jats:italic> &gt; .132). Feeling scores improved over the course of the CAF trial only (<jats:italic>P<\/jats:italic> = .017) but did not significantly differ between trials (<jats:italic>P<\/jats:italic> &gt; .167). Pre-warm-up (45 min postingestion) salivary CAF secretion rates were 1.05 \u00b1 0.94 and 0.08 \u00b1 0.05 \u03bcg\/min for CAF and PLA, respectively.<\/jats:p><\/jats:sec><jats:sec sec-type=\"conclusion\"><jats:title>Conclusion:<\/jats:title><jats:p>Acute CAF supplementation can improve both 20-m-sprint performance and a 1-off bout of short-term endurance performance in wheelchair sportsmen.<\/jats:p><\/jats:sec>","DOI":"10.1123\/ijspp.2015-0073","type":"journal-article","created":{"date-parts":[[2015,7,13]],"date-time":"2015-07-13T18:35:20Z","timestamp":1436812520000},"page":"214-220","source":"Crossref","is-referenced-by-count":17,"title":["Improvement of Sprint Performance in Wheelchair Sportsmen With Caffeine Supplementation"],"prefix":"10.1123","volume":"11","author":[{"given":"Terri S.","family":"Graham-Paulson","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Claudio","family":"Perret","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Phil","family":"Watson","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Victoria L.","family":"Goosey-Tolfrey","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"100","container-title":["International Journal of Sports Physiology and Performance"],"original-title":[],"link":[{"URL":"https:\/\/journals.humankinetics.com\/view\/journals\/ijspp\/11\/2\/article-p214.xml","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.humankinetics.com\/downloadpdf\/journals\/ijspp\/11\/2\/article-p214.xml","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2022,5,19]],"date-time":"2022-05-19T18:37:51Z","timestamp":1652985471000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.humankinetics.com\/view\/journals\/ijspp\/11\/2\/article-p214.xml"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2016,3]]},"references-count":0,"journal-issue":{"issue":"2"},"URL":"https:\/\/doi.org\/10.1123\/ijspp.2015-0073","relation":{},"ISSN":["1555-0265","1555-0273"],"issn-type":[{"value":"1555-0265","type":"print"},{"value":"1555-0273","type":"electronic"}],"subject":[],"published":{"date-parts":[[2016,3]]}}}