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Completed

NCT Number: NCT05521347

Caffeine Supplementation Improves the Cognitive Abilities and Shooting Performance of Trained E-sports Players

Purpose: investigators explored the effect of 3 mg/kg of caffeine supplementation on the cognitive ability and shooting performance of trained e-sports players. Methods: investigators recruited nine e-sports players who had received professional training in e-sports and had won at least eighth place in national-level e-sports shooting competitions. After performing three to five familiarization tests, investigators employed a randomized crossover design to divide participants into a caffeine trial (CAF) and a placebo trial (PL). The CAF group took capsules with 3 mg/kg of caffeine, whereas the PL group took a placebo capsule. After a 1-h rest, the Stroop task, visual search ability test, and the shooting ability test were conducted.

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Key information

Conditions

Caffeine Placebo

Age range

20 year–50 year

Sex eligibility

Male

Study type

Interventional

Phase

Not applicable

Primary location

National Taiwan University of Sport

Taichung, 404, Taiwan

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • had experience with national competitions and regularly underwent training in first-person shooters

Exclusion criteria

  • no experience with national competitions and regularly underwent training in first-person shooters
  • have any diseases affecting the heart, bones, and joints or diseases that preclude exercise

Treatment and study plan

caffeine

Behavioral

we employed a randomized crossover design to divide participants into a caffeine trial (CAF) and a placebo trial (PL). The CAF group took capsules with 3 mg/kg of caffeine, whereas the PL group took a placebo capsule. After a 1-h rest, the Stroop task, visual search ability test, and the shooting ability test were conducted.

Primary outcomes

  1. Stroop task

    Time frame: 1 hour after intervention

    The color-word Stroop task and visual search test were conducted using Psych/Lab for Windows. The reaction time (millisecond) were recorded.

  2. visual search test

    Time frame: 1 hour after intervention

    A total of 80 search displays were presented in 5 minutes. In each display, 5, 10, 15, or 20 -Tests were presented. The reaction time (millisecond) were recorded.

Secondary outcomes

  1. aim trainer

    Time frame: 1 hour after intervention

    Participants used the mouse to shoot the electronic targets on the computer screen. The completed time (second) were recorded.

Sponsors and collaborators

Lead sponsor

National Taiwan Sport University

Other

Registry information

Official study title

Graduate Program in Department of Exercise Health Science, National Taiwan University of Sport

Important dates

Study start
2022
Primary completion
2022
Study completion
2022
First posted
Aug 30, 2022
Registry last updated
Aug 30, 2022

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

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This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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