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

NCT05521347 | Completed

• 1 other identifier: 111-1
• Study Type: interventional
• Target: 9
• Locations: 1 country
• Sites: 1

Brief Summary

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.

Conditions

Caffeine; Placebo

Keywords

caffeine; reaction time

Outcome Measures

Primary Outcomes (2)

• Stroop task

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

  1 hour after intervention

• visual search test

  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.

  1 hour after intervention

Secondary Outcomes (1)

• aim trainer

  1 hour after intervention

Study Arms (2)

caffeine

EXPERIMENTAL

capsules with 3 mg/kg of caffeine

Behavioral: caffeine

placebo

PLACEBO COMPARATOR

The placebo capsule contained flour

Behavioral: caffeine

Interventions

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.

caffeine; placebo

Eligibility Criteria

• Age: 20 Years - 50 Years
• Gender Eligibility Details: male subjects
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)

You may qualify if:

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

You may not qualify if:

• 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

Sponsors & Collaborators

• National Taiwan Sport University: lead

Study Sites (1)

National Taiwan University of Sport

Taichung, 404, Taiwan

Location

MeSH Terms

Interventions

Caffeine

Intervention Hierarchy (Ancestors)

Xanthines; Alkaloids; Heterocyclic Compounds; Purinones; Purines; Heterocyclic Compounds, 2-Ring; Heterocyclic Compounds, Fused-Ring

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: SINGLE
• Who Masked: INVESTIGATOR
• Purpose: TREATMENT
• Intervention Model: CROSSOVER
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Associate Professor

Study Record Dates

• First Submitted: August 24, 2022
• First Posted: August 30, 2022
• Study Start: January 1, 2022
• Primary Completion: April 1, 2022
• Study Completion: April 30, 2022
• Last Updated: August 30, 2022

Record last verified: 2022-08

Locations

TW (1)