Yerba Maté (Illex Paraguariensis) ingestion augments fat oxidation and energy expenditure during exercise at various submaximal intensities

Ahmad Alkhatib

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Abstract

BackgroundIngesting Yerba Maté (YM) has become widely popular for health promotion, obesity prevention and body weight reduction, primarily due its thermogenic effectiveness. However, the YM effects on fat metabolism during exercise, when fat metabolism is already increased several fold, are unknown. The present study investigated whether acute YM ingestion augments fat metabolism parameters of fatty acid oxidation (FAO) and energy expenditure derived from FAO (EEFAO) during exercise with several intensities.
MethodsFourteen healthy males and females were randomised in a repeated measures crossover experimental design. All participants ingested either 1000 mg of YM or placebo capsules (PLC) 60 min before performing two incremental exercise ergometry tests. Power output was initiated at and increased by 0.5 W.kg-1 of body weight every 3 min stage, until reaching peak oxygen uptake(V˙O2Peak). Expired gases and stoichiometric indirect calorimetry were used to analyse FAO and EEFAO. Capillary blood samples were collected and analysed for blood lactate concentration (BLC) at rest and at each submaximal and maximal power output.
ResultsYM significantly increased FAO and EEFAO by 24% in all submaximal exercise intensities below 70% of V˙O2peak (p < 0.001, ANOVA main effects) with post hoc tests showing a higher FAO and EEFAO (p < 0.05) at the lower exercise intensities (e.g. 0.26 ± 0.09 vs. 0.35 ± 0.10 and 0.25 ± 0.12 vs. 0.33 ± 0.11 g.min-1 at 40 and 50% of V˙O2peak respectively). These changes were combined with a trend towards a decrease in BLC (P = 0.066), and without a significant difference in V˙O2peak, peak power, peak RER, or peak BLC.
ConclusionsAcute YM ingestion augments the exercise dependent increase in FAO and EEFAO at submaximal exercise intensities without negatively affecting maximal exercise performance, suggesting a potential role for YM ingestion to increase the exercise effectiveness for weight loss and sports performance.
Original languageEnglish
Number of pages7
JournalNutrition and Metabolism
Volume11
Issue number42
DOIs
Publication statusPublished - 2 Sep 2014
Externally publishedYes

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Decapodiformes
Energy Metabolism
Fatty Acids
Eating
Fats
Lactic Acid
Weight Loss
Body Weight
Ergometry
Athletic Performance
Indirect Calorimetry
Health Promotion
Exercise Test
Cross-Over Studies
Capsules
Analysis of Variance
Research Design
Obesity
Gases
Placebos

Cite this

@article{db3d38ef559a4fce9873436d044b7a3c,
title = "Yerba Mat{\'e} (Illex Paraguariensis) ingestion augments fat oxidation and energy expenditure during exercise at various submaximal intensities",
abstract = "BackgroundIngesting Yerba Mat{\'e} (YM) has become widely popular for health promotion, obesity prevention and body weight reduction, primarily due its thermogenic effectiveness. However, the YM effects on fat metabolism during exercise, when fat metabolism is already increased several fold, are unknown. The present study investigated whether acute YM ingestion augments fat metabolism parameters of fatty acid oxidation (FAO) and energy expenditure derived from FAO (EEFAO) during exercise with several intensities.MethodsFourteen healthy males and females were randomised in a repeated measures crossover experimental design. All participants ingested either 1000 mg of YM or placebo capsules (PLC) 60 min before performing two incremental exercise ergometry tests. Power output was initiated at and increased by 0.5 W.kg-1 of body weight every 3 min stage, until reaching peak oxygen uptake(V˙O2Peak). Expired gases and stoichiometric indirect calorimetry were used to analyse FAO and EEFAO. Capillary blood samples were collected and analysed for blood lactate concentration (BLC) at rest and at each submaximal and maximal power output.ResultsYM significantly increased FAO and EEFAO by 24{\%} in all submaximal exercise intensities below 70{\%} of V˙O2peak (p < 0.001, ANOVA main effects) with post hoc tests showing a higher FAO and EEFAO (p < 0.05) at the lower exercise intensities (e.g. 0.26 ± 0.09 vs. 0.35 ± 0.10 and 0.25 ± 0.12 vs. 0.33 ± 0.11 g.min-1 at 40 and 50{\%} of V˙O2peak respectively). These changes were combined with a trend towards a decrease in BLC (P = 0.066), and without a significant difference in V˙O2peak, peak power, peak RER, or peak BLC.ConclusionsAcute YM ingestion augments the exercise dependent increase in FAO and EEFAO at submaximal exercise intensities without negatively affecting maximal exercise performance, suggesting a potential role for YM ingestion to increase the exercise effectiveness for weight loss and sports performance.",
author = "Ahmad Alkhatib",
year = "2014",
month = "9",
day = "2",
doi = "10.1186/1743-7075-11-42",
language = "English",
volume = "11",
journal = "Nutrition and Metabolism",
issn = "1743-7075",
publisher = "BioMed Central",
number = "42",

}

TY - JOUR

T1 - Yerba Maté (Illex Paraguariensis) ingestion augments fat oxidation and energy expenditure during exercise at various submaximal intensities

AU - Alkhatib, Ahmad

PY - 2014/9/2

Y1 - 2014/9/2

N2 - BackgroundIngesting Yerba Maté (YM) has become widely popular for health promotion, obesity prevention and body weight reduction, primarily due its thermogenic effectiveness. However, the YM effects on fat metabolism during exercise, when fat metabolism is already increased several fold, are unknown. The present study investigated whether acute YM ingestion augments fat metabolism parameters of fatty acid oxidation (FAO) and energy expenditure derived from FAO (EEFAO) during exercise with several intensities.MethodsFourteen healthy males and females were randomised in a repeated measures crossover experimental design. All participants ingested either 1000 mg of YM or placebo capsules (PLC) 60 min before performing two incremental exercise ergometry tests. Power output was initiated at and increased by 0.5 W.kg-1 of body weight every 3 min stage, until reaching peak oxygen uptake(V˙O2Peak). Expired gases and stoichiometric indirect calorimetry were used to analyse FAO and EEFAO. Capillary blood samples were collected and analysed for blood lactate concentration (BLC) at rest and at each submaximal and maximal power output.ResultsYM significantly increased FAO and EEFAO by 24% in all submaximal exercise intensities below 70% of V˙O2peak (p < 0.001, ANOVA main effects) with post hoc tests showing a higher FAO and EEFAO (p < 0.05) at the lower exercise intensities (e.g. 0.26 ± 0.09 vs. 0.35 ± 0.10 and 0.25 ± 0.12 vs. 0.33 ± 0.11 g.min-1 at 40 and 50% of V˙O2peak respectively). These changes were combined with a trend towards a decrease in BLC (P = 0.066), and without a significant difference in V˙O2peak, peak power, peak RER, or peak BLC.ConclusionsAcute YM ingestion augments the exercise dependent increase in FAO and EEFAO at submaximal exercise intensities without negatively affecting maximal exercise performance, suggesting a potential role for YM ingestion to increase the exercise effectiveness for weight loss and sports performance.

AB - BackgroundIngesting Yerba Maté (YM) has become widely popular for health promotion, obesity prevention and body weight reduction, primarily due its thermogenic effectiveness. However, the YM effects on fat metabolism during exercise, when fat metabolism is already increased several fold, are unknown. The present study investigated whether acute YM ingestion augments fat metabolism parameters of fatty acid oxidation (FAO) and energy expenditure derived from FAO (EEFAO) during exercise with several intensities.MethodsFourteen healthy males and females were randomised in a repeated measures crossover experimental design. All participants ingested either 1000 mg of YM or placebo capsules (PLC) 60 min before performing two incremental exercise ergometry tests. Power output was initiated at and increased by 0.5 W.kg-1 of body weight every 3 min stage, until reaching peak oxygen uptake(V˙O2Peak). Expired gases and stoichiometric indirect calorimetry were used to analyse FAO and EEFAO. Capillary blood samples were collected and analysed for blood lactate concentration (BLC) at rest and at each submaximal and maximal power output.ResultsYM significantly increased FAO and EEFAO by 24% in all submaximal exercise intensities below 70% of V˙O2peak (p < 0.001, ANOVA main effects) with post hoc tests showing a higher FAO and EEFAO (p < 0.05) at the lower exercise intensities (e.g. 0.26 ± 0.09 vs. 0.35 ± 0.10 and 0.25 ± 0.12 vs. 0.33 ± 0.11 g.min-1 at 40 and 50% of V˙O2peak respectively). These changes were combined with a trend towards a decrease in BLC (P = 0.066), and without a significant difference in V˙O2peak, peak power, peak RER, or peak BLC.ConclusionsAcute YM ingestion augments the exercise dependent increase in FAO and EEFAO at submaximal exercise intensities without negatively affecting maximal exercise performance, suggesting a potential role for YM ingestion to increase the exercise effectiveness for weight loss and sports performance.

U2 - 10.1186/1743-7075-11-42

DO - 10.1186/1743-7075-11-42

M3 - Article

VL - 11

JO - Nutrition and Metabolism

JF - Nutrition and Metabolism

SN - 1743-7075

IS - 42

ER -