dc.contributor.author | Driller, Matthew W. | |
dc.contributor.author | Williams, Andrew | |
dc.contributor.author | Bellinger, Phillip M. | |
dc.contributor.author | Howe, Samuel T. | |
dc.contributor.author | Fell, James W. | |
dc.date.accessioned | 2018-05-10T05:14:25Z | |
dc.date.available | 2018-05-10T05:14:25Z | |
dc.date.issued | 2012 | |
dc.identifier.issn | 1097-9751 | |
dc.identifier.uri | http://hdl.handle.net/10072/374889 | |
dc.description.abstract | Inconsistent 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.peerreviewed | Yes | |
dc.language | English | |
dc.language.iso | eng | |
dc.publisher | American Society of Exercise Physiologists | |
dc.publisher.uri | https://www.asep.org/asep/asep/JEPonlineFebruary2012.html | |
dc.relation.ispartofpagefrom | 47 | |
dc.relation.ispartofpageto | 57 | |
dc.relation.ispartofissue | 1 | |
dc.relation.ispartofjournal | Journal of Exercise Physiologyonline | |
dc.relation.ispartofvolume | 15 | |
dc.subject.fieldofresearch | Sports science and exercise | |
dc.subject.fieldofresearch | Sports science and exercise not elsewhere classified | |
dc.subject.fieldofresearch | Medical physiology | |
dc.subject.fieldofresearchcode | 4207 | |
dc.subject.fieldofresearchcode | 420799 | |
dc.subject.fieldofresearchcode | 3208 | |
dc.title | The effects of NaHCO3 and NaCl loading on hematocrit and high-intensity cycling performance | |
dc.type | Journal article | |
dc.type.description | C1 - Articles | |
dc.type.code | C - Journal Articles | |
dc.description.version | Version 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.hasfulltext | Full Text | |
gro.griffith.author | Bellinger, Phil M. | |