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

Not Applicable

Completed

• Conditions: Caffeine; Placebo
• Interventions: Behavioral: caffeine

• Registration Number: NCT05521347
• Lead Sponsor: National Taiwan Sport University

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.

Detailed Description

Not available

Study Timeline

• Study Start: 2022-01-01
• Primary Completion: 2022-04-01
• Study Completion: 2022-04-30
• Status Verified: 2022-08
• Study First Submitted: 2022-08-24
• Study First Submitted QC: 2022-08-26
• Last Update Submitted: 2022-08-26
• Study First Posted: 2022-08-30
• Last Update Posted: 2022-08-30

Recruitment & Eligibility

• Status: COMPLETED
• Sex: Male
• Target Recruitment: 9

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

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: CROSSOVER

Arm && Interventions

Group	Intervention	Description
caffeine	caffeine	capsules with 3 mg/kg of caffeine
placebo	caffeine	The placebo capsule contained flour

Primary Outcome Measures

Name	Time	Method
Stroop task	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.
visual search test	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 Outcome Measures

Name	Time	Method
aim trainer	1 hour after intervention	Participants used the mouse to shoot the electronic targets on the computer screen. The completed time (second) were recorded.

Trial Locations

Locations (1)

National Taiwan University of Sport; 🇨🇳 Taichung, Taiwan