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

Ahmad Alkhatib

doi:10.1186/1743-7075-11-42

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

Ahmad Alkhatib

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Abstract

BACKGROUND: Ingesting 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.

METHODS: Fourteen 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 [Formula: see text]. 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.

RESULTS: YM significantly increased FAO and EEFAO by 24% in all submaximal exercise intensities below 70% of [Formula: see text] (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 [Formula: see text] respectively). These changes were combined with a trend towards a decrease in BLC (P = 0.066), and without a significant difference in [Formula: see text], peak power, peak RER, or peak BLC.

CONCLUSIONS: Acute 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 language	English
Pages (from-to)	42
Journal	Nutrition and Metabolism
Volume	11
DOIs	https://doi.org/10.1186/1743-7075-11-42
Publication status	Published - 2014

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@article{0430ce1fc2b849cc9fc757dfe71ed29a,

title = "Yerba Mat{\'e} (Illex Paraguariensis) ingestion augments fat oxidation and energy expenditure during exercise at various submaximal intensities",

abstract = "BACKGROUND: Ingesting 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.METHODS: Fourteen 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 [Formula: see text]. 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.RESULTS: YM significantly increased FAO and EEFAO by 24% in all submaximal exercise intensities below 70% of [Formula: see text] (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 [Formula: see text] respectively). These changes were combined with a trend towards a decrease in BLC (P = 0.066), and without a significant difference in [Formula: see text], peak power, peak RER, or peak BLC.CONCLUSIONS: Acute 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",

doi = "10.1186/1743-7075-11-42",

language = "English",

volume = "11",

pages = "42",

journal = "Nutrition and Metabolism",

issn = "1743-7075",

publisher = "BioMed Central Ltd.",

}

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

Y1 - 2014

N2 - BACKGROUND: Ingesting 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.METHODS: Fourteen 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 [Formula: see text]. 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.RESULTS: YM significantly increased FAO and EEFAO by 24% in all submaximal exercise intensities below 70% of [Formula: see text] (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 [Formula: see text] respectively). These changes were combined with a trend towards a decrease in BLC (P = 0.066), and without a significant difference in [Formula: see text], peak power, peak RER, or peak BLC.CONCLUSIONS: Acute 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 - BACKGROUND: Ingesting 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.METHODS: Fourteen 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 [Formula: see text]. 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.RESULTS: YM significantly increased FAO and EEFAO by 24% in all submaximal exercise intensities below 70% of [Formula: see text] (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 [Formula: see text] respectively). These changes were combined with a trend towards a decrease in BLC (P = 0.066), and without a significant difference in [Formula: see text], peak power, peak RER, or peak BLC.CONCLUSIONS: Acute 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

C2 - 25342955

SN - 1743-7075

VL - 11

SP - 42

JO - Nutrition and Metabolism

JF - Nutrition and Metabolism

ER -

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

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