Show simple item record

dc.contributor.authorDriller, Matthew W.
dc.contributor.authorWilliams, Andrew
dc.contributor.authorBellinger, Phillip M.
dc.contributor.authorHowe, Samuel T.
dc.contributor.authorFell, James W.
dc.date.accessioned2018-05-10T05:14:25Z
dc.date.available2018-05-10T05:14:25Z
dc.date.issued2012
dc.identifier.issn1097-9751
dc.identifier.urihttp://hdl.handle.net/10072/374889
dc.description.abstractInconsistent findings regarding the benefits of sodium bicarbonate (NaHCO3) loading on exercise performance may be related to the use of sodium chloride (NaCl) as placebo substances. It has been postulated that the sodium content of both substances may contribute to performance benefits. The purpose of this study was to compare NaHCO3 and NaCl to a physically inert placebo by evaluating the effect of acute loading on high-intensity cycling performance. Eight well-trained cyclists (age = 24 ± 7 yrs; mass = 77 ± 9 kg; VO2 peak = 59.8 ± 8.6 mL•kg-1 •min -1 ) completed a 2-min performance test on a cycling ergometer after either NaHCO3 loading (SB), NaCl loading (SC), or placebo loading (D) in a randomized, double-blind design. Blood samples were taken pre- and post-loading and pre- and post-performance test to analyze hematocrit levels. The SB trial produced significantly higher (P < 0.05) mean power (watts) in the 2-min test (514.9 ± 49.7) when compared to the SC and D trials (504.3 ± 51.0 and 498.7 ± 50.6, respectively), with no significant difference between SC and D trials (P > 0.24). There were no significant differences in hematocrit levels at any timepoint between the 3 trials (P > 0.05). These findings indicate that NaHCO3 loading produced significant performance enhancement when compared to both NaCl and a placebo substance.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherAmerican Society of Exercise Physiologists
dc.publisher.urihttps://www.asep.org/asep/asep/JEPonlineFebruary2012.html
dc.relation.ispartofpagefrom47
dc.relation.ispartofpageto57
dc.relation.ispartofissue1
dc.relation.ispartofjournalJournal of Exercise Physiologyonline
dc.relation.ispartofvolume15
dc.subject.fieldofresearchSports science and exercise
dc.subject.fieldofresearchSports science and exercise not elsewhere classified
dc.subject.fieldofresearchMedical physiology
dc.subject.fieldofresearchcode4207
dc.subject.fieldofresearchcode420799
dc.subject.fieldofresearchcode3208
dc.titleThe effects of NaHCO3 and NaCl loading on hematocrit and high-intensity cycling performance
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
dc.description.versionVersion of Record (VoR)
gro.rights.copyright© 2012 American Society of Exercise Physiologists. The attached file is reproduced here in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
gro.hasfulltextFull Text
gro.griffith.authorBellinger, Phil M.


Files in this item

This item appears in the following Collection(s)

  • Journal articles
    Contains articles published by Griffith authors in scholarly journals.

Show simple item record