{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,24]],"date-time":"2026-09-24T23:30:25Z","timestamp":1790292625542,"version":"4.1.0"},"reference-count":0,"publisher":"Human Kinetics","issue":"5","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2017,10]]},"abstract":"<jats:p>This study evaluated the ingestion of sodium bicarbonate (NaHCO<jats:sub>3<\/jats:sub>) on postexercise acid-base balance recovery kinetics and subsequent high-intensity cycling time to exhaustion. In a counterbalanced, crossover design, nine healthy and active males (age: 23 \u00b1 2 years, height: 179 \u00b1 5 cm, body mass: 74 \u00b1 9 kg, peak mean minute power (W<jats:sub>peak<\/jats:sub>) 256 \u00b1 45 W, peak oxygen uptake (V\u0307O<jats:sub>2peak<\/jats:sub>) 46 \u00b1 8 ml.kg<jats:sup>-1<\/jats:sup>.min<jats:sup>-1<\/jats:sup>) performed a graded incremental exercise test, two familiarization and two experimental trials. Experimental trials consisted of cycling to volitional exhaustion (T<jats:sub>LIM1<\/jats:sub>) at 100% W<jats:sub>PEAK<\/jats:sub> on two occasions (T<jats:sub>LIM1<\/jats:sub> and T<jats:sub>LIM2<\/jats:sub>) interspersed by a 90 min passive recovery period. Using a double-blind approach, 30 min into a 90 min recovery period participants ingested either 0.3 g.kg<jats:sup>-1<\/jats:sup> body mass sodium bicarbonate (NaHCO<jats:sub>3<\/jats:sub>) or a placebo (PLA) containing 0.1 g.kg<jats:sup>-1<\/jats:sup> body mass sodium chloride (NaCl) mixed with 4 ml.kg<jats:sup>-1<\/jats:sup> tap water and 1 ml.kg<jats:sup>-1<\/jats:sup> orange squash. The mean differences between T<jats:sub>LIM2<\/jats:sub> and T<jats:sub>LIM1<\/jats:sub> was larger for PLA compared with NaHCO<jats:sub>3<\/jats:sub> (-53 \u00b1 53 vs. -20 \u00b1 48 s; <jats:italic>p<\/jats:italic> = .008, d = 0.7, CI =-0.3, 1.6), indicating superior subsequent exercise time to exhaustion following NaHCO<jats:sub>3<\/jats:sub>. Blood lactate [Bla<jats:sup>-<\/jats:sup>] was similar between treatments post T<jats:sub>LIM1<\/jats:sub>, but greater for NaHCO<jats:sub>3<\/jats:sub> post T<jats:sub>LIM2<\/jats:sub> and 5 min post T<jats:sub>LIM2<\/jats:sub>. Ingestion of NaHCO<jats:sub>3<\/jats:sub> induced marked increases (<jats:italic>p<\/jats:italic> &lt; .01) in both blood pH (+0.07 \u00b1 0.02, d = 2.6, CI = 1.2, 3.7) and bicarbonate ion concentration [HCO<jats:sub>3<\/jats:sub><jats:sup>-<\/jats:sup>] (+6.8 \u00b1 1.6 mmo.l<jats:sup>-1<\/jats:sup>, d = 3.4, CI = 1.8, 4.7) compared with the PLA treatment, before T<jats:sub>LIM2<\/jats:sub>. It is likely both the acceleration of recovery, and the marked increases of acid-base after T<jats:sub>LIM1<\/jats:sub> contributed to greater T<jats:sub>LIM2<\/jats:sub> performance compared with the PLA condition.<\/jats:p>","DOI":"10.1123\/ijsnem.2017-0065","type":"journal-article","created":{"date-parts":[[2017,5,22]],"date-time":"2017-05-22T14:10:05Z","timestamp":1495462205000},"page":"429-438","source":"Crossref","is-referenced-by-count":13,"title":["Ingestion of Sodium Bicarbonate (NaHCO3) Following a Fatiguing Bout of Exercise Accelerates Postexercise Acid-Base Balance Recovery and Improves Subsequent High-Intensity Cycling Time to Exhaustion"],"prefix":"10.1123","volume":"27","author":[{"given":"Lewis A.","family":"Gough","sequence":"first","affiliation":[{"name":"Edge Hill University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Steven","family":"Rimmer","sequence":"additional","affiliation":[{"name":"University of Derby"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Callum J.","family":"Osler","sequence":"additional","affiliation":[{"name":"University of Derby"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Matthew F.","family":"Higgins","sequence":"additional","affiliation":[{"name":"University of Derby"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"100","container-title":["International Journal of Sport Nutrition and Exercise Metabolism"],"original-title":[],"link":[{"URL":"https:\/\/journals.humankinetics.com\/view\/journals\/ijsnem\/27\/5\/article-p429.xml","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.humankinetics.com\/downloadpdf\/journals\/ijsnem\/27\/5\/article-p429.xml","content-type":"text\/html","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/journals.humankinetics.com\/downloadpdf\/journals\/ijsnem\/27\/5\/article-p429.xml","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2024,8,22]],"date-time":"2024-08-22T02:39:08Z","timestamp":1724294348000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.humankinetics.com\/view\/journals\/ijsnem\/27\/5\/article-p429.xml"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2017,10]]},"references-count":0,"journal-issue":{"issue":"5"},"URL":"https:\/\/doi.org\/10.1123\/ijsnem.2017-0065","relation":{},"ISSN":["1526-484X","1543-2742"],"issn-type":[{"value":"1526-484X","type":"print"},{"value":"1543-2742","type":"electronic"}],"subject":[],"published":{"date-parts":[[2017,10]]}}}