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Completed

NCT Number: NCT02647567

Caffeine Intake and Additive Effects on Cognition

Caffeine is a methylxanthine commonly consumed by the population for their psychostimulant properties, and their intake when in moderate doses seem to produce positive effects on stress, mood and memory. So, understanding that a positive effect of aerobic exercise can be displayed also on cognition, as caffeine, when in proper proportions, the investigators do not know if the joining of the two strategies into a single activity would be able to promote additional effects enhancing cognitive processes related to memory, attention, and motor reaction time.

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Key information

Conditions

Healthy

Age range

18 year–45 year

Sex eligibility

Male

Study type

Interventional

Phase

Not applicable

About this study

Determine if 500 mg of caffeine can generate additional effects to 30 minutes of aerobic exercise enhancing cognitive memory tasks (Rey Auditory Verbal Learning Test - RAVLT), attention (sustained attention span; working speed; Percentual of errors by confusion) and simple reaction time (SRT).

Who can participate

Healthy volunteers accepted: Yes

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

Inclusion criteria

  • Fighting men
  • Low levels of consumption of caffeine daily

Exclusion criteria

  • Use more than 400 mg caffeine day
  • Mental diseases
  • Cognitive deficits

Treatment and study plan

Caffeine intake

Other

The experimental group ingest 500 mg of caffeine before (60 min) aerobic exercise (procedure double blind), and perform a battery of neuropsychological and psychomotor tests. 1 min and 30 min after the exercise the subjects perform a new battery of neuropsychological and psychomotor tests.

Other names: Caffeine

Placebo Intake

Other

The control group ingest 500 mg of placebo before (60 min) aerobic exercise (procedure double blind), and perform a battery of neuropsychological and psychomotor tests. 1 min and 30 min after the exercise the subjects perform a new battery of neuropsychological and psychomotor tests.

Other names: Placebo

Primary outcomes

  1. Simple Reaction Time

    Time frame: Acute Change from Baseline Psychomotor test to 1 min after aerobic exercise, and after 30 min

  2. Rey Auditory Verbal Learning Test

    Time frame: Acute Change from Baseline Cognitive test to 1 min after aerobic exercise, and after 30 min

  3. Sustained Attention Test

    Time frame: Acute Change from Baseline Cognitive test to 1 min after aerobic exercise, and after 30 min

Sponsors and collaborators

Lead sponsor

Universidade Federal do Rio de Janeiro

Other

Registry information

Official study title

Can Caffeine Intake Combined With Aerobic Exercise Leads to Cognitive Improvement and Psychomotor Performance in Trained Individuals?

Acronym: Caffeine

Important dates

Study start
2015
Primary completion
2015
Study completion
2015
First posted
Jan 6, 2016
Registry last updated
Jan 6, 2016

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

View the official ClinicalTrials.gov record (opens in a new tab)

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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