Table 3.
Mean ± SD of the cardiovascular and subject perceived effects (visual analogue scales) of 100 mg caffeine dose at baseline (BL) and at the time of the peak caffeine plasma concentration (Tmax)
| Energy Drink | AeroShot | |||||
|---|---|---|---|---|---|---|
| Cardiovascular | BL | Tmax | Tmax – BL | BL | Tmax | Tmax – BL |
| Heart rate (beats/min) | 71 ± 10 | 64 ± 10 | −6.6 ± 5.9 | 70 ± 16 | 69 ± 24 | 1.2 ± 24.4 |
| Systolic blood pressure (mmHg) | 118 ± 12 | 118 ± 12 | 0.7 ± 10.9 | 117 ± 15 | 114 ± 18 | −2.8 ± 19.3 |
| Diastolic blood pressure (mmHg) | 73 ± 7 | 70 ± 9 | −3.5 ± 6.8 | 73 ± 10 | 73 ± 10 | 0.3 ± 6.2 |
| Visual analogue scales | ||||||
| Alert (mm) | 74 ± 26 | 78 ± 19 | 3.5 ± 15.8 | 74 ± 23 | 78 ± 21 | 3.8 ± 10.5 |
| Tense (mm) | 7 ± 13 | 7 ± 10 | −0.5 ± 9.7 | 9 ± 13 | 6 ± 12 | −3.5 ± 7.8 |
| Jittery (mm) | 6 ± 14 | 8 ± 11 | 2.0 ± 12.9 | 15 ± 28 | 6 ± 13 | −9.1 ± 28.7 |
| Mood (mm) | 10 ± 12 | 11 ± 16 | 0.3 ± 13.9 | 11 ± 13 | 10 ± 10 | −1.3 ± 8.4 |
| Tired (mm) | 34 ± 26 | 24 ± 20 | −10.0 ± 32.8 | 37 ± 26 | 24 ± 17 | −12.7 ± 25.8 |
| Relaxed (mm) | 80 ± 25 | 83 ± 15 | 3.1 ± 26.9 | 81 ± 16 | 87 ± 14 | 5.7 ± 17.6 |