Table 3.
Study | Sex | Habitual Caffeine Intake | Age (Years) | Experience (Years) |
---|---|---|---|---|
Aedma et al. [44] | NR | 10 intake < 70 and 4 were intake 80–200 mg/day. | 25.3 ± 4.9 | ≥4 |
Arazi et al. [65] | F | ˂60 mg/day, and 1 cup of coffee | 16.8 ± 1.2 | ≥3 |
Astley et al. [45] | M | NR | 16.1 ± 1.4 | NR |
Athayde et al. [46] | M | Moderate caffeine consumers | 22.5 ± 7.1 | 12.9 ± 6.4 |
Athayde et al. [56] | M | Moderate caffeine consumers | 23.1 ± 4.2 | 12.5 ± 3.9 |
Carmo et al. [47] | M | NR | 21.6 ± 2.0 | ≥7 |
Cortez et al. [61] | NR | NR | 22.8 ± 4.7 | 3.7 ± 1.8 |
Coswig et al. [62] | M | NR | 25.9 ± 5.2 | 5 ± 1.5 |
de Azevedo et al. [69] | M | <250 mg/day | 27.6 ± 4.3 | NR |
Diaz-Lara, Del Coso, García et al. [48] | M | <60 mg/day | 29.2 ± 3.3 | ≥5 |
Diaz-Lara, Del Coso, Portillo et al. [49] | M | Light caffeine consumers | 29.2 ± 3.3 | ≥5 |
Durkalec-Michalski et al. [50] | M | 10 consumers 12 non-consumers |
21.7 ±3.7 | 11.0 ± 4.5 |
Felippe et al. [58] | M | <2 cups of coffee/day | 23 ± 5 | 15 ± 5 |
Filip-Stachnik et al. [51] | M | 3.1 ± 1.3 mg/day | 23.7 ± 4.4 | 15.6 ± 4.0 |
Lopes-Silva et al. [53] | NR | NR | 25.2 ± 5.3 | ≥10 |
Lopes-Silva et al. [52] | M | NR | 25.3 ± 5.7 | 14.4 ± 8.9 |
Lopes-Silva et al. [66] | M | 2 consumed > 6 cups/day 8 consumed < 2 cups/day |
21 ± 4 | ≥9 |
Merino Fernández et al. [60] | M F |
<0.99 mg/day | 21.50 ± 4.75 20.63 ± 3.20 |
11.88 ± 3.94 15.38 ± 2.92 |
Merino Fernández et al. [57] | M/F | NR | 22 ± 4 | 15 ± 7 |
Krawczyk et al. [59] | M/F | 2.6 mg/kg/day | 24.1 ± 4.7 | 15.1 ± 5.2 |
Negaresh et al. [54] | M | <3 cups of coffee/day | 24 ± 3 | ≥10 |
Pereira et al. [55] | F | NR | 17.6 ± 1.6 | ≥2 |
Rezaei et al. [63] | NR | ≤125 mg/day | 20.5 ± 2.4 | >5 |
San Juan et al. [64] | M | NR | 22.0 ± 1.78 | NR |
Santos et al. [67] | M | NR | 24.9 ± 7.3 | ≥7 |
Ouergui et al. [68] | M/F | <3 cups of coffee/day | 17.5 ± 0.7 | ≥6 |
M: Male; F: Female; NR: Not Reported.