The Effects of Dark Chocolate (70% Cacao) on EEG Brain Waves in Vigorously Active Individuals

Not Applicable

Completed

• Conditions: Healthy
• Interventions: Other: non dark chocolate; Dietary Supplement: dark chocolate

• Registration Number: NCT03203824
• Lead Sponsor: Loma Linda University

Brief Summary

The purpose of this graduate student study is to determine if ingestion of dark chocolate (70% cacao) will change brain frequencies between visualization at a state of rest and a state of exercise performance via electroencephalography (EEG) in vigorously active individuals.

Detailed Description

The procedures include: On day one, participants will fill out a dark chocolate Likert scale, physical activity assessment, and demographic questionnaire. Day two and three, on consecutive days will include, three EEG measurements will be recorded: 1) at baseline, 2) during visualization of rest for one minute, and 3) during visualization of usual vigorous exercise for one minute. The second day all three measurements will be recorded without dark chocolate (70% cacao). The third day all three measurements will be recorded again. Measurements 2 and 3 will be recorded savoring dark chocolate and after fully ingesting the dark chocolate respectively.

Study Timeline

• Study First Submitted: 2017-06-26
• Study First Submitted QC: 2017-06-27
• Study First Posted: 2017-06-29
• Study Start: 2017-09-05
• Status Verified: 2018-06
• Primary Completion: 2018-06-01
• Study Completion: 2018-06-01
• Last Update Submitted: 2018-06-20
• Last Update Posted: 2018-06-25

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 10

Inclusion Criteria

• 21-45 years of age
• vigorously active individuals, based on the General Physical Activities defined by Level of Intensity guidelines, greater than 75 minutes per week
• enjoy dark chocolate

Exclusion Criteria

• Caffeine, sedatives, or tranquilizers within 12 hours of study
• Creatine or other performance enhancing steroid supplementation within 24 hours of study
• Ginseng supplementation within 24 hours of study
• Barbiturates within at least 36 hours of study
• Currently taking antiepileptic medications
• Any allergies, colds or sinus infections day of the study

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: CROSSOVER

Arm && Interventions

Group	Intervention	Description
non dark chocolate	non dark chocolate	three EEG measurements will be recorded: 1) at baseline, 2) during visualization of rest for one minute, and 3) during visualization of usual vigorous exercise for one minute.
dark chocolate	dark chocolate	Three EEG measurements will be recorded: 1) at baseline, 2) during visualization of rest for one minute, and 3) during visualization of usual vigorous exercise for one minute. Measurements 2 and 3 will be recorded savoring dark chocolate and after fully ingesting the dark chocolate respectively.

Primary Outcome Measures

Name	Time	Method
EEG Wave Band Activity without dark chocolate ingestion	change from visualization of rest for one minute and during visualization of usual vigorous exercise for one minute.	The EEG, electroencephalogram, is a test that detects abnormalities in the brain waves or the electrical activity of the brain. During the procedure, electrodes consisting of small metal discs with thin wires are pasted onto the scalp. The electrodes detect tiny electrical charges that result from the activity in the brain cells. EEG wave band activity will be recorded from 9 cerebral cortical scalp locations: F3, Fz, F4, C3, Cz, C4, P3, Pz, and P4 using the EEG B-Alert 10X System, Carlsbad CA. Each of the brain frequencies will be measured in 5 second increments. Data collection will last no longer than 2 hours for each session.

Secondary Outcome Measures

Name	Time	Method
EEG wave band activity with dark chocolate ingestion	change from visualization of rest for one minute and during visualization of usual vigorous exercise for one minute.	The EEG, electroencephalogram, is a test that detects abnormalities in the brain waves or the electrical activity of the brain. During the procedure, electrodes consisting of small metal discs with thin wires are pasted onto the scalp. The electrodes detect tiny electrical charges that result from the activity in the brain cells. EEG wave band activity will be recorded from 9 cerebral cortical scalp locations: F3, Fz, F4, C3, Cz, C4, P3, Pz, and P4 using the EEG B-Alert 10X System, Carlsbad CA. Each of the brain frequencies will be measured in 5 second increments. Data collection will last no longer than 2 hours for each session.

Trial Locations

Locations (1)

Loma Linda U; 🇺🇸 Loma Linda, California, United States