Efectos de la suplementación aguda con beta-alanina sobre una prueba de tiempo límite a velocidad aeróbica máxima en atletas de resistencia

Ojeda, Álvaro Huerta; Contreras-Montilla, Osmary; Galdames-Maliqueo, Sergio; Jorquera-Aguilera, Carlos; Fuentes-Kloss, Rodrigo; Guisado-Barrilao, Rafael

doi:10.20960/nh.02310

Cited by 6 publications

(12 citation statements)

References 31 publications

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“…The meta-analysis showed high heterogeneity among the studies reviewed (I 2 = 94%; p = 0.00001). All studies analyzed declared a beneficial effect of supplementation with BA on physical performance in LDT [17,28].…”

Section: Effect Of Ba On the Limited Distance Testmentioning

confidence: 98%

“…The search strategy and study selection are shown in Figure 4. Out of 19 studies, eight considered time in a TTT to assess the effect of BA supplementation on physical performance [29,[42][43][44][45][46][47][48], nine used time (LTT) on a TTE test to assess the same effect [5,21,22,35,[49][50][51][52][53], one considered the distance (LDT) on a TTE test [28], while one considered both the time (LTT) and the distance (LDT) on a TTE test [17] ( Table 1).…”

Section: Main Searchmentioning

confidence: 99%

“…Ten studies were considered for this analysis [5,17,21,22,35,[49][50][51][52][53]. However, one of them included two experimental groups for the LTT in their research design [21].…”

Section: Effect Of Ba On the Limited Time Testmentioning

confidence: 99%

“…A meta-analysis showed low heterogeneity among the reviewed studies (I 2 = 0%; p = 0.53). Out of the 11 studied and analyzed, eight showed a positive effect of BA on time in the LTT [5,17,21,22,[49][50][51][52]. Out of these studies, Furst et al [49] showed a large ES (1.64).…”

Section: Effect Of Ba On the Limited Time Testmentioning

confidence: 99%

“…Two studies were considered for this analysis [17,28]. However, the study of Baesley et al [28] included two experimental groups for the LDT in their research design (30 min on a rowing ergometer with 2.4 g/day of BA supplementation every 24 h and 30 min on a rowing ergometer with 4.8 g/day of BA supplementation every 48 h).…”

Section: Effect Of Ba On the Limited Distance Testmentioning

confidence: 99%

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Effects of Beta-Alanine Supplementation on Physical Performance in Aerobic–Anaerobic Transition Zones: A Systematic Review and Meta-Analysis

et al. 2020

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Beta-alanine supplementation (BA) has a positive impact on physical performance. However, evidence showing a benefit of this amino acid in aerobic–anaerobic transition zones is scarce and the results controversial. The aim of this systematic review and meta-analysis is to analyze the effects of BA supplementation on physical performance in aerobic–anaerobic transition zones. At the same time, the effect of different dosages and durations of BA supplementation were identified. The search was designed in accordance with the PRISMA® guidelines for systematic reviews and meta-analyses and performed in Web of Science (WOS), Scopus, SPORTDiscus, PubMed, and MEDLINE between 2010 and 2020. The methodological quality and risk of bias were evaluated with the Cochrane Collaboration tool. The main variables were the Time Trial Test (TTT) and Time to Exhaustion (TTE) tests, the latter separated into the Limited Time Test (LTT) and Limited Distance Test (LDT). The analysis was carried out with a pooled standardized mean difference (SMD) through Hedges’ g test (95% CI). Nineteen studies were included in the systematic review and meta-analysis, revealing a small effect for time in the TTT (SMD, −0.36; 95% CI, −0.87–0.16; I2 = 59%; p = 0.010), a small effect for LTT (SMD, 0.25; 95% CI, −0.01–0.51; I2 = 0%; p = 0.53), and a large effect for LDT (SMD, 4.27; 95% CI, −0.25–8.79; I2 = 94%; p = 0.00001). BA supplementation showed small effects on physical performance in aerobic–anaerobic transition zones. Evidence on acute supplementation is scarce (one study); therefore, exploration of acute supplementation with different dosages and formats on physical performance in aerobic–anaerobic transition zones is needed.

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Section: Effect Of Ba On the Limited Distance Testmentioning

confidence: 98%

Section: Main Searchmentioning

confidence: 99%

“…Ten studies were considered for this analysis [5,17,21,22,35,[49][50][51][52][53]. However, one of them included two experimental groups for the LTT in their research design [21].…”

Section: Effect Of Ba On the Limited Time Testmentioning

confidence: 99%