Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
The lactate concentration and RPE score before and after 400-meter sprinting.
| CAF | PL | |
|---|---|---|
| lactate concentration (mmol/L) | ||
| Before 400-meter sprinting | 2.1 ± 0.9 | 2.1 ± 0.8 |
| After 400-meter sprinting | 14.8 ± 3.7 | 15.5 ± 4.2 |
| RPE score | ||
| Before 400-meter sprinting | 6.7 ± 1.8 | 7.0 ± 2.0 |
| After 400-meter sprinting | 9.2 ± 1.1 | 9.2 ± 1.2 |
Values are mean SD, n = 19. CAF, caffeine trial; PL, placebo trial; RPE, rating of perceived exertion.
