Responses to sodium bicarbonate supplementation in repeat sprint activity are individual Haug, William B., Nibali, Maria L., Drinkwater, Eric J., Zhang, Ann and Chapman, Dale W. 2014, Responses to sodium bicarbonate supplementation in repeat sprint activity are individual, Medicina sportiva, vol. X, no. 4, (No. 40), pp. 2434-2440. Attached Files Name Description MIMEType Size Downloads Title Responses to sodium bicarbonate supplementation in repeat sprint activity are individual Author(s) Haug, William B. Nibali, Maria L. Drinkwater, Eric J. orcid.org/0000-0002-9594-9360 Zhang, Ann Chapman, Dale W. Journal name Medicina sportiva Volume number X Issue number 4 Season (No. 40) Start page 2434 End page 2440 Total pages 7 Publisher Romanian Sports Medicine Society Place of publication Bucharest, Romania Publication date 2014 ISSN 1841-0162 Keyword(s) short track sodium bicarbonate repeat sprint Summary The aim of this study was to determine the individual effects of acute sodium bicarbonate (NaHCO3) supplementation on elite short track speed skating relay race simulation. Material and Method. Double-blindedbalanced, cross-over investigation required two teams of 4 athletes from the Australian National Short Track Speed Skating Program to participate in 2 simulated relay races 72 h apart. Each athlete performed 7 maximal speed skating sprints at a work:rest ratio of ~1:4. Each athlete ingested either 0.3g.kg-1 per body mass of NaHCO3 or lactose placebo (P) 75 min prior to each race. Plasma blood lactate concentration (Bla) was recorded 10min pre- and 2 min post- race simulation. Race lap times and changes in Bla were log transformed and analyzed using paired sample t-tests between NaHCO3 and P. Data were also, analysed to evaluate individual response. Magnitudes of differences between conditions were interpreted using effect sizes (ES) and 90% confidence limits (CL). Results. Post-race simulation, Bla concentration demonstrated a very large increase from baseline for both groups. P demonstrated substantially faster performance for overall (ES: 0.98, CL: -0.13 to 1.82), mean lap (ES: 1.59, CL: 0.22 to 2.95), and fastest lap time (ES: 1.26, CL: 0.02 to 2.50) compared to NaHCO3. Interpretation of the individual analysis indicates that NaHCO3 results in a greater magnitude of individual variation for total (ES: 1.05, CL: -0.40 to 1.54), mean (ES: 2.04, CL: 0.71 to 2.79), and fastest lap time (ES: 1.85, CL: 0.64 to 2.54) than P. Conclusion. These findings indicate responses to acute NaHCO3 supplementation may be individual. Language eng Field of Research 111101 Clinical and Sports Nutrition Socio Economic Objective 929999 Health not elsewhere classified HERDC Research category C1.1 Refereed article in a scholarly journal Copyright notice ©2014, Medicina Sportiva Persistent URL http://hdl.handle.net/10536/DRO/DU:30083263 Document type: Journal Article Collections: Faculty of Health School of Exercise and Nutrition Sciences Related Links Link Description Connect to published version Go to link with your DU access privileges     Unless expressly stated otherwise, the copyright for items in DRO is owned by the author, with all rights reserved. Versions Version Filter Type Thu, 05 May 2016, 14:14:49 EST Thu, 05 May 2016, 15:44:34 EST Fri, 24 Mar 2017, 05:03:53 EST Thu, 08 Jun 2017, 11:56:16 EST Thu, 08 Jun 2017, 12:03:26 EST Thu, 08 Jun 2017, 12:12:09 EST Thu, 08 Jun 2017, 12:12:56 EST Wed, 26 Jul 2017, 09:57:41 EST Filtered Full Citation counts:   Cited 0 times in TR Web of Science Cited 0 times in Scopus Search Google Scholar Access Statistics: 178 Abstract Views, 1 File Downloads  -  Detailed Statistics Created: Thu, 05 May 2016, 14:14:49 EST

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