Combination of High-Intensity Interval Training and Creatine Intake Enhances Leg Strength and Anaerobic Power Without Changes in Body Composition in Physically Active Adult Men - A Randomized Controlled Study

Year 2025, Volume: 16 Issue: Online First, 1 - 16

Tuğçe Nur Erdoğmuş , Dicle Aras

https://doi.org/10.54141/psbd.1623382

Abstract

Various training methods and ergogenic aids have been employed to enhance athletic performance. This study aimed to understand the effect of combining six weeks of high-intensity interval training (HIIT) with creatine supplementation on body composition, leg strength, and anaerobic power in physically active male adults. In this six-week study, a total of fifteen physically active men, with a mean age of 21.13 ± 1.68 years, were divided into two groups: the Wingate-based HIIT training group (HIIT) and the Wingate-based HIIT training + creatine supplementation group (C-HIIT). Both groups performed HIIT training based on the Wingate protocol, three days a week for six weeks, with the intensity increasing during the second three-week period. In addition to the training, the C-HIIT group took a total of 10 g of creatine each training day, 5 grams 30 minutes before the exercise and 5 grams immediately after exercise. The body composition, leg strength, and anaerobic power measurements of the subjects were taken three days before the study started and three days after it ended. According to the findings, although there was no significant difference in body composition values between the two groups, it was observed that leg strength (p<0.05) and anaerobic power parameters such as peak power, average power, and minimum power improved significantly in the C-HIIT group (p<0.01). The addition of 10 grams of creatine monohydrate to HIIT training appears to be effective in improving leg strength and anaerobic power in physically active adult men.

Keywords

Anaerobic power , Creatine , Ergogenic aids , HIIT , Performance

Ethical Statement

The ethical permission for the research was obtained from the Ethics Committee of Ankara University Rectorate (Number: E-56786525-050.04.04/378028 decision number: 2022/02) and it was carried out in compliance with the Declaration of Helsinki's 2013 principles. “Informed consent was obtained from all subjects involved in the study.”

Thanks

We would like to thank the all participants for their effort and patience throughout the study. This publication was produced from author's master's thesis in training and movement science at the Graduate School of Health Sciences Ankara University, Ankara, Türkiye.

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