Evidence map›Paper›PMID 24500111›Full record

Trial reportAmino acids2014

Influence of training status on high-intensity intermittent performance in response to β-alanine supplementation.

Vitor de Salles Painelli, Bryan Saunders, Craig Sale, Roger Charles Harris, Marina Yázigi Solis, Hamilton Roschel, Bruno Gualano, Guilherme Giannini Artioli, Antonio Herbert Lancha

Open access · hybridAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Amino acids, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
3.5field-weighted citation impact, top 7% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

10 citing papers in PubMed, 44 citations in OpenAlex.

  1. Trial
  2. Article
  3. Article
  4. Article
  5. Article
  6. Timing of ergogenic aids and micronutrients on muscle and exercise performance.Journal of the International Society of Sports Nutrition · 2019
    Review
  7. Article
  8. Review
  9. Review
  10. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 3 institutions in 2 countries.

Vitor de Salles PainelliLaboratory of Applied Nutrition and Metabolism, School of Physical Education and Sport, University of Sao Paulo, Av. Mello de Moraes, 65-Butanta, São Paulo, SP, 05508-030, Brazil.
Bryan Saunders
Craig Sale
Roger Charles Harris
Marina Yázigi Solis
Hamilton Roschel
Bruno Gualano
Guilherme Giannini Artioli
Antonio Herbert Lancha
Universidade de São Paulo · BRNottingham Trent University · GBUniversity of Suffolk · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Recent investigations have suggested that highly trained athletes may be less responsive to the ergogenic effects of β-alanine (BA) supplementation than recreationally active individuals due to their elevated muscle buffering capacity. We investigated whether training status influences the effect of BA on repeated Wingate performance. Forty young males were divided into two groups according to their training status (trained: T, and non-trained: NT cyclists) and were randomly allocated to BA and a dextrose-based placebo (PL) groups, providing four experimental conditions: NTPL, NTBA, TPL, TBA. BA (6.4 g day(-1)) or PL was ingested for 4 weeks, with participants completing four 30-s lower-body Wingate bouts, separated by 3 min, before and after supplementation. Total work done was significantly increased following supplementation in both NTBA (p = 0.03) and TBA (p = 0.002), and it was significantly reduced in NTPL (p = 0.03) with no difference for TPL (p = 0.73). BA supplementation increased mean power output (MPO) in bout 4 for the NTBA group (p = 0.0004) and in bouts 1, 2 and 4 for the TBA group (p ≤ 0.05). No differences were observed in MPO for NTPL and TPL. BA supplementation was effective at improving repeated high-intensity cycling performance in both trained and non-trained individuals, highlighting the efficacy of BA as an ergogenic aid for high-intensity exercise regardless of the training status of the individual.

Indexed as

AthletesAthletic Performancebeta-AlanineBicyclingDietary SupplementsHumansMalePhysical Endurancebeta-Alanine

Identifiers

PMID24500111
PMCPMC3984416
OpenAlexW2060767544

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.