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Matcha Green Tea Drinks Enhance Fat Oxidation During Brisk Walking in Females

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Cook, Matthew ORCID: https://orcid.org/0000-0002-6293-7566, Willems, M.E. and Sahin, M.A. (2018) Matcha Green Tea Drinks Enhance Fat Oxidation During Brisk Walking in Females. International Journal of Sport Nutrition and Exercise Metabolism, 28 (5). pp. 536-541. ISSN 1526-484X Online: 1543-2742

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Official URL: https://journals.humankinetics.com/doi/abs/10.1123...

Abstract

Intake of the catechin epigallocatechin gallate and caffeine has been shown to enhance exercise-induced fat oxidation. Matcha green tea powder contains catechins and caffeine and is consumed as a drink. We examined the effect of Matcha green tea drinks on metabolic, physiological and perceived intensity responses during brisk walking. Thirteen females (age: 27±8 yr, body mass: 65±7 kg, height: 166±6 cm) volunteered. Resting metabolic equivalent (1-MET) was measured using Douglas bags (1-MET: 3.4±0.3 ml·kg-1·min-1). Participants completed an incremental walking protocol to establish the relationship between walking speed and oxygen uptake and individualize the walking speed at 5- or 6-MET. A randomized cross-over design was used with participants tested between day 9 and 11 of the menstrual cycle (follicular phase). Participants consumed 3 drinks (each drink made with 1 gram of Matcha premium grade, OMGTea Ltd UK) the day before, and 1 drink 2 hours before the 30-min walk at 5- (n=10) or 6-METs (walking speed: 5.8±0.4 km·h-1) with responses measured at 8-10, 18-20 and 28-30 min. Matcha had no effect on physiological and perceived intensity responses. Matcha resulted in lower respiratory exchange ratio (control: 0.84±0.04; Matcha: 0.82±0.04) (P < 0.01) and enhanced fat oxidation during a 30-min brisk walk (control: 0.31±0.10; Matcha: 0.35±0.11 g·min-1) (P < 0.01). Matcha green tea drinking can enhance exercise-induced fat oxidation in females. However, when regular brisk walking with 30-min bouts is being undertaken as part of a weight loss program, the metabolic effects of Matcha should not be overstated.

Item Type:	Article
Additional Information:	Accepted author manuscript version reprinted, by permission, from International Journal of Sport Nutrition and Exercise Metabolism, 2018, https://journals.humankinetics.com/doi/pdf/10.1123/ijsnem.2017-0237. © Human Kinetics, Inc.
Uncontrolled Discrete Keywords:	catechins, health promotion, treadmill walking
Subjects:	Q Science > QP Physiology
Divisions:	College of Business, Psychology and Sport > School of Sport and Exercise Science
Related URLs:	Publisher https://library.worc.ac.uk/
Depositing User:	Matthew Cook
Date Deposited:	23 Jan 2018 14:30
Last Modified:	12 Oct 2020 11:29
URI:	https://worc-9.eprints-hosting.org/id/eprint/6358

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