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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.
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.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Red Bull | Experimental | Drinking of 355 ml Red Bull |
|
| Placebo | Placebo Comparator | Drinking of 355 ml sweetened water |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Red Bull | Dietary Supplement | Drinking of Red Bull before exercise |
|
| Measure | Description | Time Frame |
|---|---|---|
| Effect on blood pressure | Effect on systolic and diastolic blood pressure | 24 hours |
| Measure | Description | Time Frame |
|---|---|---|
| Pulse wave velocity | central pulse wave velocity | 24 hours |
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Inclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Arno Schmidt-Trucksäss, MD | University of Basel | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| University of Basel | Basel | 4052 | Switzerland |
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Blinded to verum or placebo drink