Table 2.
Sprint time and rating of perceived exertion (RPE) for each sprint during the running anaerobic sprint test (i.e., 6 × 35-m sprints) for trained youth and recreationally active football players.
| Parameter | One | Two | Three | Four | Five | Six |
|---|---|---|---|---|---|---|
| Sprint time (s) | ||||||
| Placebo | 5.26 ± 0.32 | 5.38 ± 0.30 * | 5.59 ± 0.29 *,$ | 5.68 ± 0.36 *,$ | 5.82 ± 0.42 *,$ | 5.77 ± 0.37 *,$,# |
| NZBC extract | 5.25 ± 0.33 | 5.36 ± 0.30 * | 5.51 ± 0.36 *,$ | 5.62 ± 0.42 *,$,# | 5.73 ± 0.43 *,$,#,£ | 5.69 ± 0.40 *,$,# |
| RPE | ||||||
| Placebo | 8 ± 3 | 9 ± 3 * | 11±3 *,$ | 13 ± 3 *,$,# | 15 ± 3 *,$,#,£ | 16 ± 3 *,$,#,£,@ |
| NZBC extract | 7 ± 2 | 9 ± 2 * | 11 ± 2 *,$ | 13 ± 2 *,$,# | 15 ± 3 *,$,#,£ | 16 ± 3 *,$,#,£,@ |
Data reported as mean ± SD from 24 participants. * Difference with first sprint; $ difference with second sprint; # difference with third sprint; £ difference with fourth sprint; @ difference with fifth sprint (p < 0.05). NZBC = New Zealand blackcurrant extract; RPE = rating of perceived exertion.