A Study to See if an Energy Drink With Caffeine and Green Tea Increases Fat Burning When Exercising

ConditionExercise

Trial statusRecruiting

Trial phasePhase 4

Trial typeInterventional

Biological sexAll

Age18-45

SponsorRDC Clinical Pty Ltd

About this trial

The goal of this study is to evaluate the influence of consuming a drink containing a combination of caffeine and green tea extracts on fat oxidation responses at rest, during and after a period of endurance type exercise.

Eligibility criteria

This trial accepts healthy volunteers

Qualifiers

Passing the Exercise and Sport Science Australia adult pre-exercise screening system (APSS) stage 1 & 2 (see appendix 4).

Between the ages of 18 and 45,

Not sedentary, and not completing more than 150 minutes of low and/or moderate and/or or vigorous intensity endurance exercise a week,

Ability to commit to in principle fulfilment of all 3 trial visits,

Disqualifiers

Triggering any of the exclusion screening criteria as outlined below, and in compliment with the Exercise and Sport Science Australia adult pre-exercise screening system (APSS).

Under the age of 18 or over the age of 45,

Sedentary, or completing over 150 minutes of low and/or moderate and/or or vigorous intensity endurance exercise a week,

Inability to commit to in principle fulfilment of all 3 trial visits,

Trial design

Design model

Crossover

Treatments tested in this trial

Active (Green tea and caffeine)
Dietary supplement
Two 355 mL cans of "XS Energy + BURN" drink containing caffeine and green tea extract.
Placebo
Other intervention
Two 355 mL cans of placebo drink but without the active ingredients (caffeine and green tea extract).

Treatment groups

40 Participants

are divided into 2 treatment groups

Group A: ActiveExperimental treatment 1 intervention

Group B: PlaceboOther 1 intervention

Trial outcomes

Primary outcomes

Fat oxidation as measured by indirect calorimetry

Change from baseline to the end of the study period in Fat oxidation as measured by indirect calorimetry (metabolic cart); baseline (pre-drink), post-drink (pre-exercise), time sequence e.g., every 5-min during exercise, 10, 20 and 30-min post-exercise. Change from baseline \& total. Fat oxidation will be measured continuously throughout the exercise and the 30-min post-exercise window, to facilitate total, and any other temporal fat oxidation timepoints.

Time frame

Baseline to 30 mins post exercise

Secondary outcomes

Carbohydrate oxidation; indirect calorimetry

Change from baseline to the end of the study period in Carbohydrate oxidation; indirect calorimetry; same timing as fat oxidation (baseline (pre-drink), post-drink (pre-exercise), time sequence e.g., every 5-min during exercise, 10, 20 and 30-min post-exercise.). Change from baseline \& total.

Time frame

Baseline to 30 mins post exercise

Respiratory exchange ratio; indirect calorimetry

Change from baseline to the end of the study period in Respiratory exchange ratio; indirect calorimetry; same timing as fat oxidation (baseline (pre-drink), post-drink (pre-exercise), time sequence e.g., every 5-min during exercise, 10, 20 and 30-min post-exercise). Change from baseline \& total

Time frame

Baseline to 30 mins post exercise

Exercise efficiency; indirect calorimetry

Change from baseline to the end of the study period in Exercise efficiency; indirect calorimetry; time sequence during exercise e.g., every 5-min. Change from the beginning of exercise \& average

Time frame

Baseline to 30 mins post exercise

Other outcomes

Tertiary: Compliance monitoring

Compliance monitoring for adherence to clinical trial components e.g. consumed volume of investigational product; ability to complete the necessary duration (30 mins) and intensity (at fat max) of exercise; adherence to immediate pre-trial control procedures of no caffeine or green tea extract in the 12 hours leading up to the experimental, arrival at the laboratory after an overnight fast

Time frame

Baseline to end of study period (week 5)

Tertiary: Adverse Event monitoring

Adverse events will be monitored throughout the study across the study periods.

Time frame

Baseline to end of study period (week 5)

Tertiary: Perceived gastrointestinal (dis)comfort questionnaire

Change from baseline to the end of the study period in Perceived gastrointestinal (dis)comfort; measured via a questionnaire.

Time frame

Baseline to end of study (week 5)

Tertiary: Perceived satiety / hunger

Change from baseline to the end of the study period in Perceived satiety / hunger; measured via questionnaire.

Time frame

Baseline to end of study period (week 5)

Sponsors and contacts

Click on the lead sponsor to view all of their trials.

RDC Clinical Pty Ltd

Lead sponsor

Amway Corp

Collaborator

Source ClinicalTrials.gov

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