No Condition
Conditions
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.
Interventions
DIETARY_SUPPLEMENTMatcha green tea
This is the condition with the Matcha green tea
DIETARY_SUPPLEMENTPlacebo
This is the condition with the placebo
Sponsors
University of Chichester
Study design
Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
BASIC_SCIENCE
Masking
SINGLE (Subject)
Intervention model description
Randomized, placebo-controlled, crossover design
Eligibility
Sex/Gender
FEMALE
Age
18 Years to 30 Years
Healthy volunteers
Yes
Inclusion criteria
* healthy * non-smokers * not taking any supplements * no known allergy to green tea
Exclusion criteria
* smokers * known high blood pressure * on medication
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Carbohydrate oxidation | Three weeks | Measurement of carbohydrate oxidation in grams/minute |
| Fat oxidation | Three weeks | Measurement of fat oxidation in grams/minute |
| Cardiac output | Three weeks | Measurement of cardiac output in liters per minute |
| Stroke volume | Three weeks | Measurement of stroke volume in milliliters |
| Total peripheral resistance | Three weeks | Measurement of total peripheral resistance in (mmHg x min) / mL |
| Heart rate variability | Three weeks | Measurement of root mean square of standard deviation of RR intervals |
Countries
United Kingdom
Outcome results
None listed