Journal of Eexercise & Organ Cross Talk

Effects of ultra-short race pace training (USRPT) with Beta-alanine supplementation on physical fitness in young soccer players

Document Type : Original Article

Authors

1 Department of Exercise Physiology, Faculty of Physical Education and Sport Sciences, Kharazmi University, Tehran, Iran.

2 Department of Physical Education and Sport Sciences, Saveh Branch, Islamic Azad University, Saveh, Iran.

Abstract
This study aims to investigate the effectiveness of the USRPT system combined with beta-alanine supplementation on the physical performance of elite young soccer players. Forty-four young soccer players were purposefully selected and divided into four groups of 11 players: Exercise-only (placebo), Exercise with a supplementation, supplementation-only, and a control group. After a 10-minute warm-up, subjects performed the 25-minute USRPT protocol in three weekly sessions, followed by regular team training. The supplementation group consumed 4 grams of beta-alanine daily for six weeks, split into two doses 60 minutes before and after each training session. Body composition, aerobic fitness (Half-time test), anaerobic power (RAST test), 20-meter sprint, muscle endurance, and Borg's Rate of Perceived Exertion (RPE) were measured in the pre-test and post-test. The repeated measures ANOVA revealed a significant difference in aerobic power, anaerobic power, muscular endurance, and fatigue drag index between the exercise-placebo and exercise-plus-supplementation groups after 40 days (P=0.001). No significant differences were found between the supplementation and control groups in other variables (P>0.05). This research found that the USRPT system effectively improves aerobic and anaerobic power in soccer players. It also suggests that when combined with USRPT, beta-alanine supplementation reduces fatigue and enhances performance. Beta-alanine boosts sports performance by increasing Carnosine in muscle cells and offering antioxidant benefits. Coaches and athletes aiming to improve physical performance may consider using beta-alanine alongside targeted training.

What is already known on this subject?

One of the high-intensity interval training systems first used by swimming coaches as an effective method to improve swimmers' endurance performance is race-pace training for very short distances USRPT.This training system was implemented for the first time in soccer. Researchers have reported that beta-alanine has ergogenic effects on athletic performance (9), and its impact on exercise-induced fatigue has been investigated (10). This has been confirmed by observing higher concentrations of Carnosine in highly stressed muscle cells, which experience the most significant H+ accumulation during intense physical activity due to beta-alanine supplementation. Beta-alanine may act as a cellular buffer to reduce acidity in active muscles during high-intensity Exercise by increasing muscle carnosine levels.

What does this study add?

Enhancing the muscle cell buffering system through anaerobic training and specialized supplementation has improved athletic performance, particularly among soccer players. However, the effects of various training protocols and specific types of supplementation on enhancing the muscle cell buffering system and athlete performance are still questionable. This study aims to investigate the effectiveness of the USRPT training system combined with beta-alanine supplementation on the physical performance of elite young soccer players.

Keywords

Subjects


Acknowledgements

We wish to thank our participants for their time and effort.

Funding

No sources of funding were sought or awarded for this study.

Compliance with ethical standards

Conflict of interest The authors declare that they have no conflict of interest.

Ethical approval This study's procedures were carried out under the Helsinki Statement regarding human research. Participants also signed an informed consent form before participation.

Informed consent Participants signed an informed consent form prior to participation in the study.

Author contributions

Conceptualization: M.A.F., H.R., R.N.; Methodology: M.A.F., H.R. R.N.; Software: M.A.F., H.R., R.N.; Validation: H.R., Formal analysis: M.A.F., H.R., R.N.; Investigation: M.A.F., H.R., R.N.; Resources: M.A.F., H.R., R.N.; Data curation: H.R.; Writing - original draft: M.A.F., H.R., R.N.; Writing – review & editing: M.A.F., H.R., R.N.; Visualization: M.A.F., H.R., R.N.; Supervision: H.R. Project administration: H.R.; Funding acquisition: H.R.

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Volume 4, Issue 3
Summer 2024
Pages 184-193

  • Receive Date 22 July 2024
  • Revise Date 12 September 2024
  • Accept Date 13 September 2024