Title

High-Velocity Intermittent Running: Effects Of Beta-Alanine Supplementation

Keywords

Anaerobic running capacity; Critical velocity; Ergogenic aid; Sex; Supplement

Abstract

Highvelocity intermittent running: effects of beta-alanine supplementation. J Strength Cond Res 26(10): 2798-2805, 2012-The use of b-alanine in sport is widespread. However, the effects across all sport activities are inconclusive. The purpose of this study was to evaluate the effects of b-alanine supplementation on high-intensity running performance and critical velocity (CV) and anaerobic running capacity (ARC). Fifty recreationally trained men were randomly assigned, in a double-blind fashion, to a b-alanine group (BA, × 3 800 mg tablets, 3 times daily; CarnoSyn; n = 26) or placebo group (PL, × 3 800 mg maltodextrin tablets, 3 times daily; n = 24). A graded exercise test (GXT) was performed to establish peak velocity (PV). Three high-speed runs to exhaustion were performed at 110, 100, and 90% of PV, with 15 minutes of rest between bouts. The distances achieved were plotted over the time to exhaustion (TTE). Linear regression was used to determine the slope (CV) and y-intercept (ARC) of these relationships to assess aerobic and anaerobic performances, respectively. There were no significant treatment effects (p > 0.05) on CV or ARC for either men or women. Additionally, no TTE effects were evident for bouts at 90-110%PV lasting 1.95-5.06 minutes. There seems to be no ergogenic effect of b-alanine supplementation on CV, ARC, or high-intensity running lasting approximately 2-5 minutes in either men or women in the current study. © 2012 National Strength and Conditioning Association.

Publication Date

10-1-2012

Publication Title

Journal of Strength and Conditioning Research

Volume

26

Issue

10

Number of Pages

2798-2805

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1519/JSC.0b013e318267922b

Socpus ID

84870467214 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84870467214

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