{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,1]],"date-time":"2026-01-01T05:31:32Z","timestamp":1767245492292,"version":"3.48.0"},"reference-count":34,"publisher":"MDPI AG","issue":"1","license":[{"start":{"date-parts":[[2025,12,29]],"date-time":"2025-12-29T00:00:00Z","timestamp":1766966400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia"},{"name":"CIPER\u2013Interdisciplinary Center for the Study of Human Performance","award":["UID\/06349\/2025"],"award-info":[{"award-number":["UID\/06349\/2025"]}]},{"name":"SPRINT-Sport Physical Activity and Health Research & Innovation Center","award":["UID\/6185\/2023"],"award-info":[{"award-number":["UID\/6185\/2023"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Applied Sciences"],"abstract":"<jats:p>Repeated sprint ability (RSA) is a critical component of football, yet high-intensity effort leads to H+ accumulation. Sodium bicarbonate (SB) is an effective buffering agent, though evidence supporting its use among female football players remains limited. We conducted a randomized, double-blind, placebo-controlled, crossover trial (NCT06098794) to examine the acute effects of SB on RSA in recreational female football players. Eleven athletes completed two RSA sessions on a cycle ergometer under SB and placebo (PL) conditions. Each session involved 3 sets of 6 maximal 6 s sprints performed every 30 s, with a 5 min recovery between sets. Participants ingested 0.2 g\u00b7kg\u22121 of the supplement 2 h prior to testing and 0.1 g\u00b7kg\u22121 1 h before the session. The results showed that SB induced a greater blood lactate accumulation (SB: 14.0 \u00b1 4.32 vs. PL: 10.9 \u00b1 3.55 mmol\u00b7L\u22121, p = 0.010) and a greater elimination of CO2 through breathing (p = 0.038), while maintaining muscle oxygenation. These physiological responses were accompanied by improved performance, as SB prevented a decline in mean power output from the first to the second set (SB: +1.4% vs. PL: \u22123.7%) and reduced the post-test drop in jump height (SB: \u22122.0% vs. PL: \u22128.2%). These findings suggest that SB supplementation may be useful to reduce muscular acidosis and fatigue in recreational female football players.<\/jats:p>","DOI":"10.3390\/app16010353","type":"journal-article","created":{"date-parts":[[2025,12,31]],"date-time":"2025-12-31T15:05:01Z","timestamp":1767193501000},"page":"353","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Acute Sodium Bicarbonate Supplementation Improves Repeated Sprint Ability in Recreational Female Football Players: A Randomized, Double-Blind, Placebo-Controlled, Crossover Trial"],"prefix":"10.3390","volume":"16","author":[{"given":"Cl\u00e1udia F.","family":"Barata","sequence":"first","affiliation":[{"name":"Laboratory of Physiology and Biochemistry of Exercise, Faculdade de Motricidade Humana, Universidade de Lisboa, Estrada da Costa, Cruz Quebrada, 1495-761 Oeiras, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2906-3665","authenticated-orcid":false,"given":"Joana F.","family":"Reis","sequence":"additional","affiliation":[{"name":"Laboratory of Physiology and Biochemistry of Exercise, Faculdade de Motricidade Humana, Universidade de Lisboa, Estrada da Costa, Cruz Quebrada, 1495-761 Oeiras, Portugal"},{"name":"Interdisciplinary Center for the Study of Human Performance (CIPER), Faculdade de Motricidade Humana, Universidade de Lisboa, Estrada da Costa, 1495-761 Oeiras, Portugal"},{"name":"Portugal Football School, Portuguese Football Federation, Avenida das Sele\u00e7\u00f5es, 1495-433 Oeiras, Portugal"}]},{"given":"Sofia A.","family":"Monc\u00f3vio","sequence":"additional","affiliation":[{"name":"Laboratory of Physiology and Biochemistry of Exercise, Faculdade de Motricidade Humana, Universidade de Lisboa, Estrada da Costa, Cruz Quebrada, 1495-761 Oeiras, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4977-8385","authenticated-orcid":false,"given":"Arminda M.","family":"Vilares","sequence":"additional","affiliation":[{"name":"Laboratory of Physiology and Biochemistry of Exercise, Faculdade de Motricidade Humana, Universidade de Lisboa, Estrada da Costa, Cruz Quebrada, 1495-761 Oeiras, Portugal"}]},{"given":"Andr\u00e9 M.","family":"Bento","sequence":"additional","affiliation":[{"name":"Laboratory of Physiology and Biochemistry of Exercise, Faculdade de Motricidade Humana, Universidade de Lisboa, Estrada da Costa, Cruz Quebrada, 1495-761 Oeiras, Portugal"}]},{"given":"Crist\u00f3v\u00e3o H.","family":"Rosa","sequence":"additional","affiliation":[{"name":"Laboratory of Physiology and Biochemistry of Exercise, Faculdade de Motricidade Humana, Universidade de Lisboa, Estrada da Costa, Cruz Quebrada, 1495-761 Oeiras, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4524-4784","authenticated-orcid":false,"given":"M\u00e1rio C.","family":"Espada","sequence":"additional","affiliation":[{"name":"Interdisciplinary Center for the Study of Human Performance (CIPER), Faculdade de Motricidade Humana, Universidade de Lisboa, Estrada da Costa, 1495-761 Oeiras, Portugal"},{"name":"Escola Superior de Educa\u00e7\u00e3o, Instituto Polit\u00e9cnico de Set\u00fabal (CIEQV Set\u00fabal), 2914-504 Set\u00fabal, Portugal"},{"name":"Sport Physical Activity and Health Research & Innovation CenTer (SPRINT), Sport Sciences School of Rio Maior (ESDRM) Instituto Polit\u00e9cnico Santar\u00e9m, 2040-413 Rio Maior, Portugal"},{"name":"Comprehensive Health Research Centre (CHRC), Universidade de \u00c9vora, Largo dos Colegiais 2, 7000-645 \u00c9vora, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2847-5924","authenticated-orcid":false,"given":"Catarina N.","family":"Matias","sequence":"additional","affiliation":[{"name":"CIDEFES\u2014Universidade Lus\u00f3fona & CIFI2D\u2014Universidade do Porto, Universidade Lus\u00f3fona, Campo Grande, 1749-024 Lisboa, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2036-7988","authenticated-orcid":false,"given":"Cristina P.","family":"Monteiro","sequence":"additional","affiliation":[{"name":"Laboratory of Physiology and Biochemistry of Exercise, Faculdade de Motricidade Humana, Universidade de Lisboa, Estrada da Costa, Cruz Quebrada, 1495-761 Oeiras, Portugal"},{"name":"Interdisciplinary Center for the Study of Human Performance (CIPER), Faculdade de Motricidade Humana, Universidade de Lisboa, Estrada da Costa, 1495-761 Oeiras, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2025,12,29]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"81","DOI":"10.1111\/sms.14102","article-title":"Nutritional optimization for female elite football players-topical review","volume":"32","author":"Lundsgaard","year":"2022","journal-title":"Scand. 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