Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Randomized Controlled Trial
. 2024 Apr 28;16(9):1324.
doi: 10.3390/nu16091324.

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

Álvaro Huerta Ojeda  1 , Emilio Jofré-Saldía  2 , Maximiliano Torres-Banduc  1 , Sergio Galdames Maliqueo  3 , Guillermo Barahona-Fuentes  1   4 , Carlos Cofré Acevedo  1 , Gabriela Lizana Romero  1 , Regina de Villa Garduño  1 , Gerardo Riquelme Vera  1 , Pablo Vera Paredes  1 , Benjamín Barrios Ávalos  1 , Tatiane Morales Serey  1 , María-Mercedes Yeomans-Cabrera  5 , Carlos Jorquera-Aguilera  6
Affiliations
Randomized Controlled Trial

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

Álvaro Huerta Ojeda et al. Nutrients. .

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.

Keywords: athletic performance; ergogenic aid; fatigue; soccer.

PubMed Disclaimer

Conflict of interest statement

The authors declare no conflicts of interest.

Figures

Figure 1
Figure 1
Research design.
Figure 2
Figure 2
Outcomes in half back squat before and after creatine supplementation. (A) bar velocity in half back squat; (B) power in half back squat; (C) force in half back squat; (D) rate of force development in half back squat; CG: control group; EG: experimental group; m-s−1: meters per seconds; N; newton; N/s: newton per seconds; RFD: rate of force development; W: watts; ns: p > 0.05; *: p < 0.05; **: p < 0.01; ***: p < 0.001.
Figure 2
Figure 2
Outcomes in half back squat before and after creatine supplementation. (A) bar velocity in half back squat; (B) power in half back squat; (C) force in half back squat; (D) rate of force development in half back squat; CG: control group; EG: experimental group; m-s−1: meters per seconds; N; newton; N/s: newton per seconds; RFD: rate of force development; W: watts; ns: p > 0.05; *: p < 0.05; **: p < 0.01; ***: p < 0.001.
Figure 3
Figure 3
Outcomes in RSA test before and after creatine supplementation.
See this image and copyright information in PMC

Similar articles

See all similar articles

References

    1. Kyles A., Oliver J.L., Cahill M.J., Lloyd R.S., Pedley J. Linear and Change of Direction Repeated Sprint Ability Tests: A Systematic Review. J. Strength Cond. Res. 2023;37:1703–1717. doi: 10.1519/jsc.0000000000004447. - DOI - PubMed
    1. Sosa-Izquierdo J.J., Salas-Sánchez J., Latorre-Román P.Á. Caracterización Del Entrenamiento de La Fuerza En Futbolistas Profesionales y Semi-Profesionales de Las Ligas Españolas [Characterization of Strength Training in Professional and Semi-Professional Soccer Players in Spanish Leagues] Retos. 2024;53:453–460. doi: 10.47197/retos.v53.100614. - DOI
    1. Nédélec M., McCall A., Carling C., Legall F., Berthoin S., Dupont G. Recovery in Soccer: Part I—Post-Match Fatigue and Time Course of Recovery. Sports Med. 2012;42:997–1015. doi: 10.2165/11635270-000000000-00000. - DOI - PubMed
    1. Ramírez J.M., Núñez V.M., Lancho C., Poblador M.S., Lancho J.L. Velocity-Based Training of Lower Limb to Improve Absolute and Relative Power Outputs in Concentric Phase of Half-Squat in Soccer Players. J. Strength Cond. Res. 2015;29:3084–3088. doi: 10.1519/JSC.0000000000000407. - DOI - PubMed
    1. Thomakos P., Spyrou K., Katsikas C., Geladas N.D., Bogdanis G.C. Effects of Concurrent High-Intensity and Strength Training on Muscle Power and Aerobic Performance in Young Soccer Players during the Pre-Season. Sports. 2023;11:59. doi: 10.3390/sports11030059. - DOI - PMC - PubMed

Publication types

Grants and funding

This research received no external funding.