Evidence map›Paper›PMID 41799862›Full record

ArticleInternational journal of tryptophan research : IJTR2026

The Effect of L-Tryptophan Intake on Dynamic Strength in Paralympic Powerlifting.

Márcio Getirana-Mota, Felipe J Aidar, Raphael Fabricio de Souza, Ciro José Brito, Taísa Pereira Santos, Jonason Espínola Lacerda, Lúcio Marques Vieira-Souza, Georgian Badicu

Abstract read
In one paragraph

Article in International journal of tryptophan research : IJTR, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0citing papers in PubMed
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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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

8 authors.

Márcio Getirana-MotaGraduate Program in Physiology Science, Federal University of Sergipe - UFS, São Cristovão, Sergipe, Brazil.ORCID https://orcid.org/0000-0002-9022-6251
Felipe J AidarGraduate Program in Physiology Science, Federal University of Sergipe - UFS, São Cristovão, Sergipe, Brazil.ORCID https://orcid.org/0000-0001-7378-4529
Raphael Fabricio de SouzaGraduate Program in Physiology Science, Federal University of Sergipe - UFS, São Cristovão, Sergipe, Brazil.ORCID https://orcid.org/0000-0002-3899-6849
Ciro José BritoDepartment of Physical Education, Federal University of Juiz de Fora, Minas Gerais, Brazil.ORCID https://orcid.org/0000-0002-9678-1977
Taísa Pereira SantosGraduate Program in Movement Science, Federal University of Sergipe - UFS, São Cristovão, Sergipe, Brazil.ORCID https://orcid.org/0000-0003-2362-103X
Jonason Espínola LacerdaGroup of Studies and Research of Performance, Sport, Health and Paralympic Sports - GEPEPS, the Federal University of Sergipe - UFS, São Cristovão, Sergipe, Brazil.ORCID https://orcid.org/0009-0002-7999-0635
Lúcio Marques Vieira-SouzaGraduate Program in Movement Science, Federal University of Sergipe - UFS, São Cristovão, Sergipe, Brazil.ORCID https://orcid.org/0000-0002-5721-0725
Georgian BadicuDepartment of Physical Education and Special Motricity, Faculty of Physical Education and Mountain Sports, Transilvania University of Braşov, Romania.ORCID https://orcid.org/0000-0003-4100-8765

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Introduction: L-tryptophan supplementation has been studied in endurance sports with controversial results, and its influence on maximal strength sports remains largely unexplored. This study investigated whether L-tryptophan supplementation improves dynamic strength indicators in Paralympic powerlifting athletes. Methodology: A randomized, double-blind, crossover clinical trial was conducted with 13 paralympic powerlifting athletes. The athletes were supplemented with L-tryptophan or placebo for 72 hours before training. Strength was assessed using an encoder, measuring mean propulsive velocity (MPV), maximal velocity ( Results: L-tryptophan supplementation resulted in higher MPV, Conclusion: L-tryptophan supplementation appears to temporarily improve pre-exercise strength performance in Paralympic powerlifting athletes, possibly by influencing neuromuscular relaxation.

Indexed as

L-tryptophanparalympic powerliftingstrength trainingsupplementationVBT

Identifiers

PMID41799862
PMCPMC12961097

What OpenQuestion holds

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Registered trials

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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.