Matcha Green Tea Effects at Rest and During Moderate-intensity Exercise in Females

NCT ID: NCT05882942

Last Updated: 2024-05-08

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: NA
• Total Enrollment: 8 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2023-03-03
• Study Completion Date: 2023-08-15

Brief Summary

Intake of the green tea catechin epigallocatechin (EGCG) increased fat oxidation during walking. It is also known to reduce blood pressure and improve body composition. This research will expand the insight on the effects by Matcha green tea supplementation and address the effects on heart rate variability, substrate oxidation at rest, and cardiovascular responses at rest in addition to metabolic and physiologic responses for a 1-hr walk in healthy females.

Detailed Description

Intake of the catechin epigallocatechin (EGCG) increased fat oxidation during walking. It is also known to reduce blood pressure and improve body composition. EGCG is the most abundant and potent bioactive compound (50-80% of the total catechin content) found in Matcha green tea (MGT) and is usually consumed as a drink or in a capsulated from unfermented tea leaves. MGT polyphenols have antioxidant and anti-inflammatory properties, providing numerous health benefits, such as the reduced risk of type 2 diabetes and obesity. MGT supplementation (3g over a 24hr period) has been shown to enhance fat oxidation during 30-min brisk walking as well as lower respiratory exchange ratio in females. Understanding the effectiveness of the bioactive compounds found in natural food sources in improving human health is key to informing the general population and the public health policies preceding them; the daily consumption of drinks and food naturally high in EGCG content could be recommended as an essential part of a healthy lifestyle. This research will expand the insight on Matcha green tea supplementation address the effect on heart rate variability, substrate oxidation at rest, and cardiovascular responses at rest in addition to metabolic and physiologic responses for a 1-hr walk in healthy females.

Conditions

No Condition

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: CROSSOVER
• Primary Study Purpose: BASIC_SCIENCE
• Blinding Strategy: SINGLE

Study Groups

Placebo

Participants will be supplemented with a placebo.

Group Type: EXPERIMENTAL

Placebo

Intervention Type: DIETARY_SUPPLEMENT

This is the condition with the placebo

Matcha green tea

Participants will be supplemented with Matcha green tea.

Group Type: EXPERIMENTAL

Matcha green tea

Intervention Type: DIETARY_SUPPLEMENT

This is the condition with the Matcha green tea

Interventions

Matcha green tea

This is the condition with the Matcha green tea

Intervention Type: DIETARY_SUPPLEMENT

Placebo

This is the condition with the placebo

Intervention Type: DIETARY_SUPPLEMENT

Eligibility Criteria

Inclusion Criteria

• healthy
• non-smokers
• not taking any supplements
• no known allergy to green tea

Exclusion Criteria

• smokers
• known high blood pressure
• on medication

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 30 Years
• Eligible Sex: FEMALE
• Accepts Healthy Volunteers: Yes

Sponsors

University of Chichester

OTHER

Sponsor Role: lead

Responsible Party

Mark Eilisabeth Willems

Professor of Exercise Physiology

Responsibility Role: PRINCIPAL_INVESTIGATOR

Principal Investigators

Mark E Willems

Role: PRINCIPAL_INVESTIGATOR

University of Chichester

Locations

Mark Willems

Chichester, West Sussex, United Kingdom

University of Chichester

Chichester, , United Kingdom

Countries

United Kingdom

Other Identifiers

22231905455

Identifier Type: -

Identifier Source: org_study_id