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Related Experiment Video

Updated: Jun 24, 2026

Assessing Pupil-linked Changes in Locus Coeruleus-mediated Arousal Elicited by Trigeminal Stimulation

Assessing Pupil-linked Changes in Locus Coeruleus-mediated Arousal Elicited by Trigeminal Stimulation

Published on: November 26, 2019

Caffeine and performance in clay target shooting.

Bianca Share¹, Nick Sanders, Justin Kemp

¹School of Exercise Science, Australian Catholic University, Fitzroy, Victoria, Australia.

Journal of Sports Sciences

|March 25, 2009

Summary

Caffeine intake up to 4 mg per kilogram of body mass did not enhance shooting accuracy or reaction times in elite clay target shooters. Elite athletes did not benefit from caffeine supplementation in this precision sport.

Related Experiment Videos

Last Updated: Jun 24, 2026

Assessing Pupil-linked Changes in Locus Coeruleus-mediated Arousal Elicited by Trigeminal Stimulation

Assessing Pupil-linked Changes in Locus Coeruleus-mediated Arousal Elicited by Trigeminal Stimulation

Published on: November 26, 2019

Area of Science:

Sports Science
Human Performance
Nutritional Science

Background:

Caffeine's impact on cognitive and motor performance in precision sports remains debated.
Understanding caffeine's ergogenic potential is crucial for elite athletes in disciplines like shooting.

Purpose of the Study:

To investigate the effects of two caffeine doses (2 mg/kg and 4 mg/kg body mass) on clay target shooting performance.
To evaluate caffeine's influence on reaction time and target tracking in elite shooters.
To determine if caffeine supplementation offers performance benefits in double-trap shooting.

Main Methods:

Randomized, double-blind, placebo-controlled trial involving seven elite male double-trap shooters.
Participants completed four rounds (50 targets each) under three conditions: placebo, 2 mg/kg caffeine, and 4 mg/kg caffeine.
Shooting accuracy (score), reaction time, and target tracking times were recorded and analyzed.

Main Results:

No statistically significant differences in shooting accuracy were found among the caffeine doses and placebo.
Reaction times and target tracking times did not differ significantly across the intervention trials.
Performance metrics remained consistent across the four rounds within each experimental condition (P > 0.05).

Conclusions:

Caffeine ingestion at doses of 2 mg/kg and 4 mg/kg body mass does not appear to improve performance in elite clay target shooters.
The findings suggest that caffeine does not provide a performance advantage for accuracy, reaction time, or target tracking in the double-trap discipline.
Further research may explore different dosages or specific athlete populations.