Table 2.
Characteristics of the included studies regarding the intervention and the results found.
| Source | Sessions | Administered amount | Type of supplementation | Examination performed | cVEMP without caffeine administration | cVEMP with caffeine administration |
|---|---|---|---|---|---|---|
| McNerney, Coad, Burkard (2014)26 | C Session (use of caffeine) | 300 mg/individual | Use of coffee with cream or sugar (Starbucks) |
cVEMP | P1 (right): 13.62 ± 1.2 P1 (left): 14.13 ± 1.2 |
P1 (right): 13.46 ± 1.1 P1 (left): 13.94 ± 1.2 |
| NC Session (no caffeine use) | N1 (right): 20.44 ± 1.6 N1 (left): 20.95 ± 1.4 |
N1 (right): 20.68 ± 1.8 N1 (left): 20.97 ± 1.8 |
||||
| Amplitude p1n1 (right): 206.54 ± 123.4 | Amplitude p1n1 (right): 187.63 ± 115.6 | |||||
| Amplitude p1n1 (left): 189.72 ± 122.9 | Amplitude p1n1 (left): 194.76 ± 148.6 | |||||
| Sousa, Suzuki (2014)27 | Two examinations were performed in each of the volunteers, with a mean interval of 60 min. | 420 mg/individual | Capsule | cVEMP | P13: 13.41 ± 1.27 | P13: 13.56 ± 1.39 |
| N23: 23.24 ± 2.74 | N23: 23.14 ± 2.71 | |||||
| Amplitude p13n23: 71.90 ± 47.85 | Amplitude p13n23: 76.82 ± 48.22 |
Right P1 and N1 refer to the VEMP record on the right side of the sternocleidomastoid and left P1 and N1 to its left side.