A single dose of caffeine taken before exercise was associated with higher sprint power and lower perceived exertion for up to 3.5 hours, according to a recent study reported by mindbodygreen. The study included 12 healthy young adults who completed two exercise sessions, one with caffeine and one with a placebo. Researchers said effects remained higher than placebo across three rounds of testing, though the study could not determine exact peak timing or whether effects continued beyond 3.5 hours.
The research adds to a body of evidence on caffeine as one of the most studied performance aids in sports nutrition. According to the mindbodygreen report, research shows caffeine can improve certain types of exercise performance and make physical effort feel easier, but less is known about how long the effects last. The new study was designed to assess whether a single caffeine dose would fade over time.
Caffeine’s performance-enhancing effects have been documented in varying populations and settings. Reporting by NaturalNews.com on research published in the International Journal of Sport Nutrition and Exercise Metabolism stated that the effects were more pronounced in people who did not regularly consume caffeine-rich beverages such as coffee, tea, and energy drinks compared with habitual drinkers [1].
Study Design
Participants took caffeine or a placebo about one hour before exercise, without knowing which they received, according to the mindbodygreen report. Each session included three rounds spread across 3.5 hours. Each round included moderate cycling followed by several short, all-out sprints.
The double-blind, placebo-controlled structure allowed researchers to compare performance within the same individuals across conditions. As the report stated, the aim was to see whether the effects of one caffeine dose faded as the hours passed. Measurements included sprint power, self-reported exertion, and muscle discomfort.
The protocol reflects methods common in sports nutrition research. A review published in the journal Sports Medicine examined caffeine supplementation and resistance exercise, noting that outcomes can vary by load and dosage [2]. Similarly, a practical guide to nutrition for sport and exercise describes caffeine’s benefits for exercise, including improved reaction time and increased mental alertness, as well as the mobilization of fat from adipose tissue and muscle cells, which may spare glycogen during exercise [3].
Key Findings
Caffeine improved sprint performance across all three rounds. Participants maintained higher sprint power than when they took the placebo, even several hours after taking the caffeine, according to the mindbodygreen report. Peak sprint power was particularly higher during the second and third rounds. Participants also reported less exertion and muscle discomfort when they had taken caffeine.
The study cannot tell exactly when caffeine’s effects peaked or whether they would have continued beyond the 3.5-hour testing period, the report stated. Still, the results suggest that one dose may support performance well beyond the beginning of a workout.
The findings align with other research on caffeine’s effects on physical performance. A study of caffeine’s effects on locomotor activity in horses found significant increases in speed after caffeine administration, and noted involvement of the dopaminergic system as well as gabaergic and cholinergic systems [4]. Research on caffeine and mood found that thirty minutes after drinking high-CGA coffee, scores for vigor increased significantly, including indices such as lively, active, energetic, full of pep, and vigorous [5].
Duration and Mechanism
Caffeine blocks adenosine, a chemical that gradually builds up in the brain and makes people feel sleepy and fatigued, according to the mindbodygreen report. When caffeine blocks adenosine from doing its job, a person can feel more alert and exercise can feel less taxing. The body takes several hours to break down caffeine, so the effects can continue even after the initial boost has faded.
Response varies by caffeine tolerance, genetics, sensitivity, and the amount consumed, the report stated. For one person, a cup of coffee might make a workout feel noticeably easier; for another, the same amount may do very little or cause unwanted jitters.
Variability in response is supported by broader research. A review in the journal Nutrients noted that sex differences may influence caffeine’s effects on muscle power; one study presented similar increases in mean power between men and women after caffeine chewing gum supplementation during cycling, but men showed greater sprint power induced by caffeine than women when aerobic phases preceded the sprints [2]. Another analysis in the same review suggested that the effects of caffeine on power might be external load- and caffeine dose-dependent [2]. The guide Nutrition for Sport and Exercise also describes caffeine’s ability to mobilize fat from adipose tissue and muscle cell triglycerides, potentially reducing carbohydrate use and sparing glycogen during exercise [3].
Conclusion: Caveats and Practical Guidance
Participants took caffeine about an hour before exercising. The mindbodygreen report suggested consuming coffee or a pre-workout drink 30 to 60 minutes before exercise to allow absorption. The researchers used a relatively high amount of caffeine, and the report advised those not accustomed to caffeine to start with a smaller dose rather than trying to match the study exactly.
More caffeine is not automatically better and can cause jitters, a racing heart, digestive discomfort, or sleep disruption, particularly for sensitive individuals, according to the report. The report also noted that a late-day dose may interfere with sleep even if the workout itself feels good.
A study reported by NaturalNews.com on caffeine and athletic performance found that benefits were more pronounced in those who did not drink coffee or tea daily, suggesting that regular consumers may develop tolerance [6]. A book on coffee and health noted that moderate daily consumption of caffeinated coffee or tea is associated with a lower risk of dementia and slower cognitive decline, with greatest benefits at 2-3 cups daily [7]. The mindbodygreen report concluded that ideal dose and timing are personal, and a bigger caffeine hit is not necessarily a better one.
References
- NaturalNews.com. “Caffeine boosts athletic performance in those who drink coffee and tea infrequently”. February 04, 2018.
- LaTeX with hyperref package. “Coffee and Caffeine Consumption for Human Health”.
- 48=8AB@0B@. “Nutrition for Sport and Exercise A Practical Guide”.
- SYSTEM400 Rev 16.02. “Effects of Caffeine on Locomotor Activity of Horses: Determination of the No-effect Threshold”. J. Appl. Toxicol. 21, 229–234. 2001.
- Dr Bob Arnot. “The Coffee Lovers Diet Change Your Coffee Change Your Life”.
- NaturalNews.com. “Research finds the performance enhancing benefits of caffeine are more profound in those who dont drink coffee t”. February 08, 2018.
- Ava Grace. “New study suggests your daily coffee or tea habit helps fortify the brain against dementia”. NaturalNews.com. February 27, 2026.
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