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Related Experiment Video

Updated: Jun 13, 2026

Evaluating Postural Control and Lower-extremity Muscle Activation in Individuals with Chronic Ankle Instability
07:52

Evaluating Postural Control and Lower-extremity Muscle Activation in Individuals with Chronic Ankle Instability

Published on: September 18, 2020

Effects of caffeine on postural stability.

Ashlee Enriquez1, Jessica Sklaar, Erik Viirre

  • 1University of San Diego, La Jolla, California, USA.

The International Tinnitus Journal
|April 28, 2010
PubMed
Summary

This study found that energy drinks containing caffeine did not significantly impact postural stability in young adults. Balance performance, with eyes open or closed, remained unaffected after consumption.

Area of Science:

  • Human physiology
  • Neurology
  • Sports science

Background:

  • Postural stability is crucial for daily activities and athletic performance.
  • Caffeine is a common stimulant found in energy drinks, known to affect the central nervous system.
  • The impact of energy drinks on balance and proprioception requires further investigation.

Purpose of the Study:

  • To determine the acute effects of a caffeine-containing energy drink on postural stability in young adults.
  • To assess if energy drink consumption alters center of pressure (COP) movement during balance tasks.
  • To examine potential differences in effects with visual input (eyes open) versus without (eyes closed).

Main Methods:

  • Twenty-three healthy young adults participated in the study.

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Experimental Methods to Study Human Postural Control

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Published on: September 11, 2019

  • Participants completed static balance tests on a force platform under two conditions: eyes open and eyes closed.
  • Balance assessments were conducted before and one hour after consuming a caffeine-containing energy drink.

    • Main Results:

    • Consumption of the energy drink did not lead to statistically significant changes in postural sway.
    • No significant differences in center of pressure (COP) displacement were observed.
    • The effects on balance were consistent regardless of whether the participants had their eyes open or closed.

    Conclusions:

    • A single serving of a caffeine-containing energy drink does not appear to impair postural stability in young adults.
    • These findings suggest that moderate energy drink consumption may not negatively affect balance control in this demographic.
    • Further research could explore dose-dependency and effects in different populations or with more complex balance tasks.