Skip to main content

Advertisement

Table 1 Resting values for metabolic and cardiovascular variables one hour after the ingestion of 1 and 3 mg/kg of caffeine using a caffeinated energy drink or the same drink without caffeine (0 mg/kg). Data are mean ± SD for 12 participants

From: Dose response effects of a caffeine-containing energy drink on muscle performance: a repeated measures design

Resting values 0 mg/kg 1 mg/kg 3 mg/kg
Energy expenditure (cal/min) 1.4 ± 0.2 1.4 ± 0.3 1.4 ± 0.3
Mechanical ventilation (L/min) 7.7 ± 1.5 8.2 ± 1.5 8.2 ± 1.5
Respiratory Exchange Ratio 0.84 ± 0.03 0.87 ± 0.03 0.85 ± 0.04
Systolic blood pressure (mmHg) 112 ± 12 119 ± 10* 118 ± 19*
Diastolic blood pressure (mmHg) 68 ± 5 73 ± 8* 76 ± 5*†
Mean arterial pressure (mmHg) 82 ± 7 88 ± 8* 90 ± 6*
Heart rate (beats/min) 57 ± 7 59 ± 8* 61 ± 8*†
  1. * Different from 0 mg/kg (P < 0.05). † Different from 1 mg/kg (P < 0.05).