Effects of; Food, Allergic
Conditions
Brief summary
Background: The consumption of Energy Drinks (EDs) can acutely lead to negative side effects, such as raised blood pressure and impaired endothelial function. Nevertheless, they are sold worldwide and are often consumed before physical activity (PA). In contrast to the blood pressure elevating effect of EDs, PA leads to a reduction of blood pressure. The effect of ED consumption on blood pressure response during and after endurance training is currently unresolved. Methods: A total of 23 participants (eleven men, twelve women) were evaluated in the intervention study with a blinded Cross-Over Design. They consumed on two different days either 355 ml Red Bull (RB) or 355 ml Placebo (Pla) in randomised order. The peripheral (PBP) and central blood pressure (CBP) were measured before, during and after a 30-minute aerobic endurance training, by the Schiller BR-102 plus PWA device.
Detailed description
Background: The consumption of Energy Drinks (EDs) can acutely lead to negative side effects, such as raised blood pressure and impaired endothelial function. Nevertheless, they are sold worldwide and are often consumed before physical activity (PA). In contrast to the blood pressure elevating effect of EDs, PA leads to a reduction of blood pressure. The effect of ED consumption on blood pressure response during and after endurance training is currently unresolved. Methods: A total of 23 participants (eleven men, twelve women) were evaluated in the intervention study with a blinded Cross-Over Design. They consumed on two different days either 355 ml Red Bull (RB) or 355 ml Placebo (Pla) in randomised order. The peripheral (PBP) and central blood pressure (CBP) were measured before, during and after a 30-minute aerobic endurance training, by the Schiller BR-102 plus PWA device.
Interventions
DIETARY_SUPPLEMENTRed Bull
Drinking of Red Bull before exercise
Sponsors
University of Basel
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
BASIC_SCIENCE
Masking
SINGLE (Subject)
Masking description
Blinded to verum or placebo drink
Eligibility
Sex/Gender
ALL
Age
18 Years to 40 Years
Healthy volunteers
No
Inclusion criteria
* No known cardiovascular diseases such as arterial hypertension and diabetes mellitus. * No ophthalmological diseases such as glaucoma or macular degeneration. * No regular medication * No vasodilator abuse for 24 h before the respective intervention (e.g. smoking, use of stimulants, β-blockers). * No pregnancy (anamnestic)
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Effect on blood pressure | 24 hours | Effect on systolic and diastolic blood pressure |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Pulse wave velocity | 24 hours | central pulse wave velocity |
Countries
Switzerland
Outcome results
None listed