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The acute effects of thermogenic fitness drink formulas containing 140?mg and 100?mg of caffeine on energy expenditure and fat metabolism at rest and during exercise.

ABSTRACT: BACKGROUND:Thermogenic fitness drink formulas (TFD) have been shown to increase energy expenditure and markers of lipid metabolism. The purpose of the current study was to compare TFD formulas containing different caffeine concentrations versus a placebo drink on energy expenditure and lipid metabolism at rest and during exercise. METHODS:Thirty-two recreationally active participants (22.9?±?0.7 y, 167.1?±?1.4?cm, 68.8?±?2.0?kg, 24.0?±?1.2% fat) who were regular caffeine consumers, participated in this randomized, double-blind, crossover design study. Participants reported to the laboratory on three occasions, each of which required consumption of either a TFD containing 140?mg or 100?mg of caffeine or a placebo. Baseline measurements of resting energy expenditure (REE) and resting fat oxidation (RFO) were assessed using indirect calorimetry as well as measurements of serum glycerol concentration. Measurements were repeated at 30, 60, 90?min post-ingestion. Following resting measures, participants completed a graded exercise test to determine maximal oxygen uptake (V?O2max), maximal fat oxidation (MFO) and the exercise intensity that elicits MFO (Fatmax), and total energy expenditure (EE). RESULTS:A significant interaction was shown for REE (p

SUBMITTER: Clark NW

PROVIDER: S-EPMC7020555 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature

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The acute effects of thermogenic fitness drink formulas containing 140 mg and 100 mg of caffeine on energy expenditure and fat metabolism at rest and during exercise.

Clark Nicolas W NW Wells Adam J AJ Coker Nicholas A NA Goldstein Erica R ER Herring Chad H CH Starling-Smith Tristan M TM Varanoske Alyssa N AN Panissa Valeria L G VLG Stout Jeffrey R JR Fukuda David H DH

Journal of the International Society of Sports Nutrition 20200213 1

<h4>Background</h4>Thermogenic fitness drink formulas (TFD) have been shown to increase energy expenditure and markers of lipid metabolism. The purpose of the current study was to compare TFD formulas containing different caffeine concentrations versus a placebo drink on energy expenditure and lipid metabolism at rest and during exercise.<h4>Methods</h4>Thirty-two recreationally active participants (22.9 ± 0.7 y, 167.1 ± 1.4 cm, 68.8 ± 2.0 kg, 24.0 ± 1.2% fat) who were regular caffeine consumers ...[more]

PMID: 32054486

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Dataset Information

The acute effects of thermogenic fitness drink formulas containing 140?mg and 100?mg of caffeine on energy expenditure and fat metabolism at rest and during exercise.

Publications

The acute effects of thermogenic fitness drink formulas containing 140 mg and 100 mg of caffeine on energy expenditure and fat metabolism at rest and during exercise.

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