Salivary and blood lactate after supramaximal exercise in sprinters and long-distance runners

This investigation examined the reproducibility of salivary lactate measurement in long-distance runners following a 3000-m run and compared the salivary and blood lactate concentrations in sprinters and long-distance runners following a 400-m run. There was no significant difference in salivary and blood lactate between the first and second 3000-m run test. The peak salivary and blood lactate following a 400-m run was higher in sprinters than in long-distance runners. There was a significant relationship between the peak lactate of saliva and that of blood following a 400-m run. The results showed that the salivary lactate following exercise was reproducible and the salivary lactate concentration may serve as a relevant indicator in determining which have a higher lactate production.