The Effect of Consuming a guaraná and Vitamin/Mineral Complex Pre-exercise on Affect, Exertion, M… (NCT01929694) | Clinical Trial Compass
CompletedPhase 4
The Effect of Consuming a guaraná and Vitamin/Mineral Complex Pre-exercise on Affect, Exertion, Metabolism and Cognition
United Kingdom40 participantsStarted 2013-09
Plain-language summary
Consuming a guaraná and vitamin and mineral complex can improve mental fatigue and cognitive function at rest; guaraná also contains caffeine, which can reduce perceived exertion and increase fat burning during exercise. The purpose of this study is to test whether consuming a guaraná and vitamin and mineral product before exercise influences affect (mood), physical exertion and fat burning during exercise and mental fatigue, cognitive performance and affect post-exercise.
Who can participate
Age range
18 Years – 35 Years
Sex
MALE
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion Criteria:
Individuals must be:
* Healthy
* Male
* Aged between 18 and 35years
* Habitually active (exercising at least twice a week)
* Able to run at a moderate pace for 30 minutes non-stop on a treadmill
Exclusion Criteria:
Individuals will not be eligible to take part in this study if they:
* have a history of neurological or psychiatric diseases excluding anxiety or depression
* have a current diagnosis of depression or anxiety
* have a history of significant head trauma, metabolic, endocrine or cardiac disorders
* have smoked within the last 3 months,
* have high blood pressure \>140/90mmHg
* consume \> 500 mg caffeine per day from all dietary sources
* have adverse reactions to caffeine containing products (i.e. tea, coffee, energy drinks, cola, Pepsi)
* are currently taking any pharmaceuticals
* have habitual taken dietary supplements within the last 4 weeks (defined as ≥3 consecutive days or ≥4 days in total per week)
* have current or history of drug or alcohol abuse
* have participated in another clinical trial within 30 days prior to screening
* have any condition which may interfere with your ability to perform assessments
* have any history of hypersensitivity to the investigational product or its active or inactive constituents or any food allergy or intolerance
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
Affect
Timeframe: Assessed pre-exercise, at 10min intervals during exercise and 45 and 75min post-exercise