Healthy
Conditions
Keywords
Cognitive, Aerobic Exercise, Performance
Brief summary
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.
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
OTHERCaffeine 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.
OTHERPlacebo 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.
Sponsors
Universidade Federal do Rio de Janeiro
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Masking
DOUBLE (Subject, Investigator)
Eligibility
Sex/Gender
MALE
Age
18 Years to 45 Years
Healthy volunteers
Yes
Inclusion criteria
* Fighting men * Low levels of consumption of caffeine daily
Exclusion criteria
* Use more than 400 mg caffeine day * Mental diseases * Cognitive deficits
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Simple Reaction Time | Acute Change from Baseline Psychomotor test to 1 min after aerobic exercise, and after 30 min |
| Rey Auditory Verbal Learning Test | Acute Change from Baseline Cognitive test to 1 min after aerobic exercise, and after 30 min |
| Sustained Attention Test | Acute Change from Baseline Cognitive test to 1 min after aerobic exercise, and after 30 min |
Outcome results
None listed