Cited by 59Coffee research and impactsSports Performance and TrainingMuscle metabolism and nutrition

Effects of coffee and caffeine anhydrous on strength and sprint performance

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Trexler, Eric T., Smith‐Ryan, Abbie E., Roelofs, Erica J., Hirsch, Katie R., Mock, Meredith G.·2016·European Journal of Sport Science

Abstract

Caffeine and coffee are widely used among active individuals to enhance performance. The purpose of the current study was to compare the effects of acute coffee (COF) and caffeine anhydrous (CAF) intake on strength and sprint performance. Fifty‐four resistance‐trained males completed strength testing, consisting of one‐rep max (1RM) and repetitions to fatigue (RTF) at 80% of 1RM for leg press (LP) and bench press (BP). Participants then completed five, 10‐second cycle ergometer sprints separated by one minute of rest. Peak power (PP) and total work (TW) were recorded for each sprint. At least 48 hours later, participants returned and ingested a beverage containing CAF (300 mg flat dose; yielding 3–5 mg/kg bodyweight), COF (8.9 g; 303 mg caffeine), or placebo (PLA; 3.8 g non‐caloric flavouring) 30 minutes before testing. LP 1RM was improved more by COF than CAF (p = .04), but not PLA (p = .99). Significant interactions were not observed for BP 1RM, BP RTF, or LP RTF (p > .05). There were no sprint × treatment interactions for PP or TW (p > .05). 95% confidence intervals revealed a significant improvement in sprint 1 TW for CAF, but not COF or PLA. For PLA, significant reductions were observed in sprint 4 PP, sprint 2 TW, sprint 4 TW, and average TW; significant reductions were not observed with CAF or COF. Neither COF nor CAF improved strength outcomes more than PLA, while both groups attenuated sprint power reductions to a similar degree. Coffee and caffeine anhydrous may be considered suitable pre‐exercise caffeine sources for high‐intensity exercise.

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Crossref · 10.1080/17461391.2015.1085097

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  • Caffeine from anhydrous and coffee sources are both equally ergogenic.

    “Caffeine, from anhydrous and coffee sources are both equally ergogenic [434].”

    From ISSN exercise & sports nutrition review update: research & recommendations (2018) · cites this paper as [434]

    The Conclusion (page not provided) reports that caffeine-matched coffee and caffeine anhydrous were both ergogenic for repeated sprint exercise, with no clear difference between them. The claim omits that exercise-specific qualifier: neither source improved strength outcomes compared with placebo. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • Caffeine improves repeated sprint performance benefiting the anaerobic athlete.

    “In addition to the apparent positive effects on endurance performance, caffeine has also been shown to improve repeated sprint performance benefiting the anaerobic athlete [432–434].”

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Authors
Trexler, E. T., Smith‐Ryan, A. E., Roelofs, E. J., Hirsch, K. R., & Mock, M. G.
Affiliations
University of North Carolina at Chapel Hill (US)
Corresponding author
Smith‐Ryan, Abbie E.
Venue
European Journal of Sport Science
Publisher
Wiley
Published
2015-09-22
Volume
16
Issue
6
Pages
702-710
ISSN
  • 1536-7290 (ISSN-L)
  • 1746-1391
OpenAlex
W2207129148
Cited by
59
References
43
Citations by year
2026: 3 · 2025: 3 · 2024: 10 · 2023: 5 · 2022: 4 · 2021: 6 · 2020: 7 · 2019: 10 · 2018: 3 · 2017: 6 · 2016: 2
FWCI
2.64
Type
journal article
Language
en
Open access
Locations
  • European Journal of Sport Science (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Center for Advancing Translational Sciences (1KL2TR001109)
  • National Institutes of Health
Topics
  • Health Sciences › Medicine › Pharmacology › Coffee research and impacts
  • Health Sciences › Medicine › Orthopedics and Sports Medicine › Sports Performance and Training
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Muscle metabolism and nutrition
Keywords
coffee, caffeine, strength, sprint performance, one-repetition maximum, peak power, total work, resistance-trained men, high-intensity exercise
MeSH terms
Adult, Caffeine, Coffee, Humans, Male, Plant Extracts, Anaerobic Threshold, Muscle, Skeletal, Muscle Strength, Athletic Performance, Young Adult, Performance-Enhancing Substances

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