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dc.contributor.authorBellinger, Phillip M
dc.contributor.authorMinahan, Clare L
dc.date.accessioned2018-08-23T04:57:30Z
dc.date.available2018-08-23T04:57:30Z
dc.date.issued2016
dc.identifier.issn1746-1391
dc.identifier.doi10.1080/17461391.2015.1005696
dc.identifier.urihttp://hdl.handle.net/10072/84056
dc.description.abstractβ-alanine is a common ingredient in supplements consumed by athletes. Indeed, athletes may believe that the β-alanine induced paresthesia, experienced shortly after ingestion, is associated with its ergogenic effect despite no scientific mechanism supporting this notion. The present study examined changes in cycling performance under conditions of β-alanine induced paresthesia. Eight competitive cyclists (VO2max = 61.8 ± 4.2 mL·kg·min−1) performed three practices, one baseline and four experimental trials. The experimental trials comprised a 1-km cycling time trial under four conditions with varying information (i.e., athlete informed β-alanine or placebo) and supplement content (athlete received β-alanine or placebo) delivered to the cyclist: informed β-alanine/received β-alanine, informed placebo/received β-alanine, informed β-alanine/received placebo and informed placebo/received placebo. Questionnaires were undertaken exploring the cyclists’ experience of the effects of the experimental conditions. A possibly likely increase in mean power was associated with conditions in which β-alanine was administered (±95% CL: 2.2% ± 4.0%), but these results were inconclusive for performance enhancement (p = 0.32, effect size = 0.18, smallest worthwhile change = 56% beneficial). A possibly harmful effect was observed when cyclists were correctly informed that they had ingested a placebo (–1.0% ± 1.9%). Questionnaire data suggested that β-alanine ingestion resulted in evident sensory side effects and six cyclists reported placebo effects. Acute ingestion of β-alanine is not associated with improved 1-km TT performance in competitive cyclists. These findings are in contrast to the athlete’s “belief” as cyclists reported improved energy and the ability to sustain a higher power output under conditions of β-alanine induced paresthesia.
dc.description.peerreviewedYes
dc.languageEnglish
dc.publisherTaylor & Francis
dc.publisher.placeUnited Kingdom
dc.relation.ispartofpagefrom88
dc.relation.ispartofpageto95
dc.relation.ispartofissue1
dc.relation.ispartofjournalEuropean Journal of Sport Science
dc.relation.ispartofvolume16
dc.subject.fieldofresearchMechanical engineering
dc.subject.fieldofresearchSports science and exercise
dc.subject.fieldofresearchExercise physiology
dc.subject.fieldofresearchcode4017
dc.subject.fieldofresearchcode4207
dc.subject.fieldofresearchcode420702
dc.titlePerformance effects of acute β-alanine induced paresthesia in competitive cyclists
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.rights.copyright© 2016 Taylor & Francis. This is an Accepted Manuscript of an article published by Taylor & Francis in European Journal of Sport Science on 30 Jan 2015, available online: https://www.tandfonline.com/doi/10.1080/17461391.2015.1005696
gro.hasfulltextFull Text
gro.griffith.authorMinahan, Clare L.
gro.griffith.authorBellinger, Phil M.


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