NCT04455009

Acute Effects of Fitness Drink Formulas on Energy Expenditure and Fat Metabolism

The Acute Effects of Fitness Drink Formulas Containing 100 mg and 140 mg of Caffeine on Energy Expenditure and Fat Metabolism in Healthy Adults

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 56 (actual)
• Sponsor: University of Central Florida · Academic / Other
• Sex: All
• Age: 18 Years – 35 Years
• Healthy volunteers: Accepted

Summary

The purpose of this investigation was to examine the acute effects of consuming two different fitness drink formulas on the physiological response at rest and to exercise in healthy men and women.

Detailed description

Thermogenic fitness drinks containing \~200mg of caffeine have been reported to accelerate the metabolism, increase energy, and consequently promote increased fat oxidation. However, determination of the efficacy of lower caffeine concentrations may provide additional options for individuals with preferences for reduced caffeine intake. Therefore, the aim of this study was to evaluate different fitness drink formulas containing a total of 100mg and 140mg of caffeine on the physiological response at rest and to exercise. This study utilized a randomized, double-blind, placebo-controlled design. All participants completed three testing visits during which they consumed the placebo, the 100mg caffeine formula, and the 140mg caffeine formula. Blood samples, blood pressure, heart rate, resting energy expenditure, substrate oxidation, and neurocognitive assessments were collected at baseline and repeated 30, 60, and 90 minutes post-ingestion. Immediately following the last cognitive assessment, a maximal graded exercise test with gas analysis was conducted on a cycle ergometer to evaluate physical performance and maximal fat oxidation during exercise as well as the physiological response prior to and following exercise.

Conditions

• Caffeine
• Diet, Healthy
• Fat Burn
• Cognitive Change
• Fatigue

Interventions

Type	Name	Description
DIETARY_SUPPLEMENT	Fitness Drink Formula	Single drink provided following baseline assessments

Timeline

• Start date: 2018-03-08
• Primary completion: 2018-11-28
• Completion: 2018-11-28
• First posted: 2020-07-02
• Last updated: 2020-07-02

Locations

1 site across 1 country: United States