The Effect of Coffee on People with High Intensity Exercise and the Characteristics of Caffeine Metabolism

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

NA

Total Enrollment

24 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-10-23

Study Completion Date

2029-12-31

Brief Summary

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The purpose of this project is to explore the relationship between the effect of coffee on exercise performance and caffeine metabolism.

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Detailed Description

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The investigators will study the relationship between the impact of coffee on exercise and caffeine metabolism. The investigators will recruit healthy elite athletes. Participants will be forbidden to consume stimulant drinks such as coffee for 24 hours before the experiment. When the participants arrive at the lab on the day of the experiment, they will sign an informed consent form, a health history questionnaire and a daily coffee consumption questionnaire. Each participant does six rides, with one day of caffeine washout before each ride. In all trials, each participant will ride at the same time of day. Before riding, drink 200 ml water, decaffeinated coffee or coffee in random order, and the caffeine content of coffee is 200 mg. After 60 minutes of drinking, they start riding, after the completion of the riding, the subjects perceived and judged the perception between the baseline load and the comparison load. After the completion of the judgment, the next level of stimulus parameters will randomly generated to conduct the experiment. Each person conducted 6 groups of intervention experiments. Changes in average exercise performance, heart rate, electrocardiogram and body temperature will be observed after drinking decaffeinated coffee or coffee compared with drinking water. The concentration of caffeine and its metabolites in urine before and after drinking within 3 hours will be measured by liquid chromatography-mass spectrometry (LC-MS) or gas chromatography-mass spectrometry (GC-MS).

Conditions

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Healthy

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

SINGLE

Participants

Study Groups

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Water

The participants will drink 200 ml water.

Group Type PLACEBO_COMPARATOR

Caffeine content

Intervention Type OTHER

Participants will drink the same volume of water or coffee with different amounts of caffeine.

Decaffeinated coffee

The participants will drink 200 ml decaffeinated coffee.

Group Type EXPERIMENTAL

Caffeine content

Intervention Type OTHER

Participants will drink the same volume of water or coffee with different amounts of caffeine.

Coffee

The participants will drink 200 ml coffee, the caffeine content is 200 mg.

Group Type EXPERIMENTAL

Caffeine content

Intervention Type OTHER

Participants will drink the same volume of water or coffee with different amounts of caffeine.

Interventions

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Caffeine content

Participants will drink the same volume of water or coffee with different amounts of caffeine.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

Healthy adults 18-40 years old

Exclusion Criteria

Diabetes Hypoglycemia Gout Osteoporosis Gastric ulcer Pancreatitis Intestinal obstruction Blood phobia Pathological hypo or hyper tension Impaired glucose tolerance Claustrophobia HIV,etc.

Minimum Eligible Age

18 Years

Maximum Eligible Age

40 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes