Randomized controlled trial2024Open access

Effects of a Low Dose of Orally Administered Creatine Monohydrate on Post-Fatigue Muscle Power in Young Soccer Players

Huerta Ojeda Á, Jofré-Saldía E, Torres-Banduc M, Galdames Maliqueo S, Barahona-Fuentes G, Cofré Acevedo C, Lizana Romero G, de Villa Garduño R, Riquelme Vera G, Vera Paredes P, Barrios Ávalos B, Morales Serey T, Yeomans-Cabrera MM, Jorquera-Aguilera C

Nutrients · 4 citations

How it was studied

Design
Randomized controlled trial (indexed by PubMed)
Studied in
People
Main outcome
Health markers and function

Who paid for it

Funding
Independent funding

Based on full-text disclosure statement.

Publication

Published
2024-04-28 · Nutrients · vol. 16 · issue 9 · p. 1324
Publisher
Multidisciplinary Digital Publishing Institute
Cited
10 citations · more than 86% of similar papers · 2.2× the field average
References
44 works
Access
Open access (journal) · CC-BY
Research areas
Muscle metabolism and nutrition · Sports Performance and Training · Exercise and Physiological Responses
Keywords
Placebo, Medicine, Squat, Analysis of variance, Creatine kinase, Physical therapy, Creatine, Placebo group, Internal medicine, Muscle fatigue, Physical medicine and rehabilitation, Electromyography
MeSH
muscle, skeletal, humans, creatine, administration, oral, double-blind method, muscle fatigue, soccer, dietary supplements, adolescent, male, muscle strength, athletic performance, athletes

14 authors

From CL

  • Álvaro Huerta Ojeda · correspondingViña del Mar University; University of the Americas
  • Emilio Jofré‐SaldíaUniversidad de Santiago de Chile
  • Maximiliano A. Torres-BanducViña del Mar University; University of the Americas
  • Sergio Galdames MaliqueoUniversidad de Playa Ancha de Ciencias de la Educación
  • Guillermo Barahona‐FuentesUniversidad Andrés Bello; Viña del Mar University; University of the Americas
  • Carlos Cofré AcevedoViña del Mar University; University of the Americas

Abstract

The use of creatine monohydrate (Cr) in professional soccer is widely documented. However, the effect of low doses of Cr on the physical performance of young soccer players is unknown. This study determined the effect of a low dose of orally administered Cr on muscle power after acute intra-session fatigue in young soccer players. Twenty-eight young soccer players (mean age = 17.1 ± 0.9 years) were randomly assigned to either a Cr (n = 14, 0.3 g·kg-1·day-1 for 14 days) or placebo group (n = 14), using a two-group matched, double-blind, placebo-controlled design. Before and after supplementation, participants performed 21 repetitions of 30 m (fatigue induction), and then, to measure muscle power, they performed four repetitions in half back squat (HBS) at 65% of 1RM. Statistical analysis included a two-factor ANOVA (p ˂ 0.05). Bar velocity at HBS, time: p = 0.0006, ŋp2 = 0.22; group: p = 0.0431, ŋp2 = 0.12, time × group p = 0.0744, ŋp2 = 0.02. Power at HBS, time: p = 0.0006, ŋp2 = 0.12; group: p = 0.16, ŋp2 = 0.06, time × group: p = 0.17, ŋp2 = 0.009. At the end of the study, it was found that, after the induction of acute intra-session fatigue, a low dose of Cr administered orally increases muscle power in young soccer players.

Abstract via Europe PMC. Copyright remains with the authors or publisher (CC BY).

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