The dose-dependent effect of caffeine supplementation on performance, reaction time and postural stability in CrossFit – a randomized placebo-controlled crossover trial
ABSTRACTBackground Caffeine (CAF) ingestion improves performance in a broad range of exercise tasks. Nevertheless, the CAF-induced, dose-dependent effect on discipline-specific performance and cognitive functions in CrossFit/High-Intensity Functional Training (HIFT) has not been sufficiently investi...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Taylor & Francis Group
2024-12-01
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| Series: | Journal of the International Society of Sports Nutrition |
| Subjects: | |
| Online Access: | https://www.tandfonline.com/doi/10.1080/15502783.2023.2301384 |
| _version_ | 1797354033980112896 |
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| author | Natalia Główka Jakub Malik Tomasz Podgórski Rafał Stemplewski Janusz Maciaszek Julia Ciążyńska Emilia E. Zawieja Agata Chmurzynska Paulina M. Nowaczyk Krzysztof Durkalec-Michalski |
| author_facet | Natalia Główka Jakub Malik Tomasz Podgórski Rafał Stemplewski Janusz Maciaszek Julia Ciążyńska Emilia E. Zawieja Agata Chmurzynska Paulina M. Nowaczyk Krzysztof Durkalec-Michalski |
| author_sort | Natalia Główka |
| collection | DOAJ |
| description | ABSTRACTBackground Caffeine (CAF) ingestion improves performance in a broad range of exercise tasks. Nevertheless, the CAF-induced, dose-dependent effect on discipline-specific performance and cognitive functions in CrossFit/High-Intensity Functional Training (HIFT) has not been sufficiently investigated. The aim of this study was to evaluate the effect of acute supplementation of three different doses of CAF and placebo (PLA) on specific performance, reaction time (RTime), postural stability (PStab), heart rate (HR) and perceived exertion (RPE).Methods In a randomized double-blind placebo-controlled crossover design, acute pre-exercise supplementation with CAF (3, 6, or 9 mg/kg body mass (BM)) and PLA in 26 moderately trained CrossFit practitioners was examined. The study protocol involved five separate testing sessions using the Fight Gone Bad test (FGB) as the exercise performance evaluation and biochemical analyses, HR and RPE monitoring, as well as the assessment of RTime and PStab, with regard to CYP1A2 (rs762551) and ADORA2A (rs5751876) single nucleotide polymorphism (SNP).Results Supplementation of 6 mgCAF/kgBM induced clinically noticeable improvements in FGBTotal results, RTime and pre-exercise motor time. Nevertheless, there were no significant differences between any CAF doses and PLA in FGBTotal, HRmax, HRmean, RPE, pre/post-exercise RTime, PStab variables or pyruvate concentrations. Lactate concentration was higher (p < 0.05) before and after exercise in all CAF doses than in PLA. There was no effect of CYP1A2 or ADORA2A SNPs on performance.Conclusions The dose-dependent effect of CAF supplementation appears to be limited to statistically nonsignificant but clinically considered changes on specific performance, RTime, PStab, RPE or HR. However, regarding practical CAF-induced performance implications in CrossFit/HIFT, 6 mgCAF/kgBM may be supposed as the most rational supplementation strategy. |
| first_indexed | 2024-03-08T13:39:30Z |
| format | Article |
| id | doaj.art-a3ecaf20c17c4829aac7a9ea81dafe8b |
| institution | Directory Open Access Journal |
| issn | 1550-2783 |
| language | English |
| last_indexed | 2024-03-08T13:39:30Z |
| publishDate | 2024-12-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Journal of the International Society of Sports Nutrition |
| spelling | doaj.art-a3ecaf20c17c4829aac7a9ea81dafe8b2024-01-16T12:30:50ZengTaylor & Francis GroupJournal of the International Society of Sports Nutrition1550-27832024-12-0121110.1080/15502783.2023.2301384The dose-dependent effect of caffeine supplementation on performance, reaction time and postural stability in CrossFit – a randomized placebo-controlled crossover trialNatalia Główka0Jakub Malik1Tomasz Podgórski2Rafał Stemplewski3Janusz Maciaszek4Julia Ciążyńska5Emilia E. Zawieja6Agata Chmurzynska7Paulina M. Nowaczyk8Krzysztof Durkalec-Michalski9Department of Sports Dietetics, Poznań University of Physical Education, Poznań, PolandDepartment of Physical Activity and Health Promotion Science, Poznań University of Physical Education, Poznań, PolandDepartment of Physiology and Biochemistry, Poznań University of Physical Education, Poznań, PolandDepartment of Digital Technologies in Physical Activity, Poznań University of Physical Education, Poznań, PolandDepartment of Physical Activity and Health Promotion Science, Poznań University of Physical Education, Poznań, PolandDepartment of Physical Activity and Health Promotion Science, Poznań University of Physical Education, Poznań, PolandDepartment of Human Nutrition and Dietetics, Poznań University of Life Sciences, Poznań, PolandDepartment of Human Nutrition and Dietetics, Poznań University of Life Sciences, Poznań, PolandDepartment of Sports Dietetics, Poznań University of Physical Education, Poznań, PolandDepartment of Sports Dietetics, Poznań University of Physical Education, Poznań, PolandABSTRACTBackground Caffeine (CAF) ingestion improves performance in a broad range of exercise tasks. Nevertheless, the CAF-induced, dose-dependent effect on discipline-specific performance and cognitive functions in CrossFit/High-Intensity Functional Training (HIFT) has not been sufficiently investigated. The aim of this study was to evaluate the effect of acute supplementation of three different doses of CAF and placebo (PLA) on specific performance, reaction time (RTime), postural stability (PStab), heart rate (HR) and perceived exertion (RPE).Methods In a randomized double-blind placebo-controlled crossover design, acute pre-exercise supplementation with CAF (3, 6, or 9 mg/kg body mass (BM)) and PLA in 26 moderately trained CrossFit practitioners was examined. The study protocol involved five separate testing sessions using the Fight Gone Bad test (FGB) as the exercise performance evaluation and biochemical analyses, HR and RPE monitoring, as well as the assessment of RTime and PStab, with regard to CYP1A2 (rs762551) and ADORA2A (rs5751876) single nucleotide polymorphism (SNP).Results Supplementation of 6 mgCAF/kgBM induced clinically noticeable improvements in FGBTotal results, RTime and pre-exercise motor time. Nevertheless, there were no significant differences between any CAF doses and PLA in FGBTotal, HRmax, HRmean, RPE, pre/post-exercise RTime, PStab variables or pyruvate concentrations. Lactate concentration was higher (p < 0.05) before and after exercise in all CAF doses than in PLA. There was no effect of CYP1A2 or ADORA2A SNPs on performance.Conclusions The dose-dependent effect of CAF supplementation appears to be limited to statistically nonsignificant but clinically considered changes on specific performance, RTime, PStab, RPE or HR. However, regarding practical CAF-induced performance implications in CrossFit/HIFT, 6 mgCAF/kgBM may be supposed as the most rational supplementation strategy.https://www.tandfonline.com/doi/10.1080/15502783.2023.2301384cognitive functionergogenic supporthigh-intensity functional exercisesports dieteticsstabilitysupplementation |
| spellingShingle | Natalia Główka Jakub Malik Tomasz Podgórski Rafał Stemplewski Janusz Maciaszek Julia Ciążyńska Emilia E. Zawieja Agata Chmurzynska Paulina M. Nowaczyk Krzysztof Durkalec-Michalski The dose-dependent effect of caffeine supplementation on performance, reaction time and postural stability in CrossFit – a randomized placebo-controlled crossover trial Journal of the International Society of Sports Nutrition cognitive function ergogenic support high-intensity functional exercise sports dietetics stability supplementation |
| title | The dose-dependent effect of caffeine supplementation on performance, reaction time and postural stability in CrossFit – a randomized placebo-controlled crossover trial |
| title_full | The dose-dependent effect of caffeine supplementation on performance, reaction time and postural stability in CrossFit – a randomized placebo-controlled crossover trial |
| title_fullStr | The dose-dependent effect of caffeine supplementation on performance, reaction time and postural stability in CrossFit – a randomized placebo-controlled crossover trial |
| title_full_unstemmed | The dose-dependent effect of caffeine supplementation on performance, reaction time and postural stability in CrossFit – a randomized placebo-controlled crossover trial |
| title_short | The dose-dependent effect of caffeine supplementation on performance, reaction time and postural stability in CrossFit – a randomized placebo-controlled crossover trial |
| title_sort | dose dependent effect of caffeine supplementation on performance reaction time and postural stability in crossfit a randomized placebo controlled crossover trial |
| topic | cognitive function ergogenic support high-intensity functional exercise sports dietetics stability supplementation |
| url | https://www.tandfonline.com/doi/10.1080/15502783.2023.2301384 |
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