Caffeine Intake and Additive Effects on Cognition

Overview

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.

Full Title of Study: “Can Caffeine Intake Combined With Aerobic Exercise Leads to Cognitive Improvement and Psychomotor Performance in Trained Individuals?”

Study Type

  • Study Type: Interventional
  • Study Design
    • Allocation: Randomized
    • Intervention Model: Parallel Assignment
    • Masking: Double (Participant, Investigator)
  • Study Primary Completion Date: November 2015

Detailed Description

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).

Interventions

  • Other: Caffeine Intake
    • 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: Placebo Intake
    • 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.

Arms, Groups and Cohorts

  • Experimental: Caffeine Intake
    • 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.
  • Placebo Comparator: Placebo Intake
    • 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.

Clinical Trial Outcome Measures

Primary Measures

  • Simple Reaction Time
    • Time Frame: Acute Change from Baseline Psychomotor test to 1 min after aerobic exercise, and after 30 min
  • Rey Auditory Verbal Learning Test
    • Time Frame: Acute Change from Baseline Cognitive test to 1 min after aerobic exercise, and after 30 min
  • Sustained Attention Test
    • Time Frame: Acute Change from Baseline Cognitive test to 1 min after aerobic exercise, and after 30 min

Participating in This Clinical Trial

Inclusion Criteria

  • Fighting men – Low levels of consumption of caffeine daily Exclusion Criteria:

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

Gender Eligibility: Male

Minimum Age: 18 Years

Maximum Age: 45 Years

Are Healthy Volunteers Accepted: Accepts Healthy Volunteers

Investigator Details

  • Lead Sponsor
    • Universidade Federal do Rio de Janeiro
  • Provider of Information About this Clinical Study
    • Principal Investigator: Alberto Souza de Sá Filho, Doctorade in Mental Health – Universidade Federal do Rio de Janeiro
  • Overall Official(s)
    • Sérgio Machado, PhD, Study Director, Salgado de Oliveira University

Clinical trials entries are delivered from the US National Institutes of Health and are not reviewed separately by this site. Please see the identifier information above for retrieving further details from the government database.

At TrialBulletin.com, we keep tabs on over 200,000 clinical trials in the US and abroad, using medical data supplied directly by the US National Institutes of Health. Please see the About and Contact page for details.