Caffeine Intake and Additive Effects on Cognition

Universidade Federal do Rio de Janeiro

Status: Completed

Conditions: Healthy

Treatments: Other: Placebo Intake; Other: Caffeine Intake

Study type: Interventional

Funder types: Other

Identifiers

NCT02647567

UNIVERSO-03

Details and patient eligibility

About

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 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).

Enrollment: 20 patients

Sex: Male

Ages: 18 to 45 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• Fighting men
• Low levels of consumption of caffeine daily

Exclusion criteria

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

Trial design

20 participants in 2 patient groups, including a placebo group

Caffeine Intake

Experimental group

Description:

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.

Treatment:

Other: Caffeine Intake

Placebo Intake

Placebo Comparator group

Description:

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.

Treatment:

Other: Placebo Intake