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Action of Caffeinated and Decaffeinated Espresso on Autonomic Function

NCT00576030 · Status: TERMINATED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 77

Last updated 2010-07-05

No results posted yet for this study

Summary

More than 80% of the population in the USA consume coffee each day. However there not many studies on change of heart rate variability and placebo effects after consumption of coffee.

In our study we aim to test the following hypotheses:

1. Habitual caffeinated espresso coffee drinkers show an increase in blood pressure, heart rate variability and parasympathetic activity (high frequency band) of the heart.
2. Non-habitual caffeinated espresso coffee drinkers show an increase of blood pressure. The heart rate variability and the parasympathetic activity of the heart will decrease.
3. Caffeinated or decaffeinated espresso induces comparable changes in habitual or non-habitual coffee drinkers.

Conditions

  • Influence of Espresso on Heart Rate Variability

Interventions

OTHER

hab cof with water

habitual coffee drinker provided with water

OTHER

hab cof with dec espresso

habitual coffee drinkers given decaffeinated espresso

OTHER

hab cof with caf espresso

habitual coffee drinkers given caffeinated espresso

OTHER

non-hab cof with water

non-habitual coffee drinkers given water

OTHER

non-hab cof with dec espresso

non-habitual coffee drinkers given decaffeinated espresso

OTHER

non-hab cof with caf espresso

non-habitual coffee drinkers given caffeinated espresso

Sponsors & Collaborators

  • Charite University, Berlin, Germany

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
BASIC_SCIENCE
Masking
TRIPLE
Model
CROSSOVER

Eligibility

Min Age
18 Years
Max Age
50 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2007-01-31
Primary Completion
2008-10-31
Completion
2008-10-31

Countries

  • Germany

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT00576030 on ClinicalTrials.gov