The effect of time of day on anaerobic performance and blood lactate response in trained men: assessment in relation to chronotype.

ABSTRACT: This study examined the effects of the time of day on anaerobic performance and blood lactate levels in 20 trained male athletes with intermediate type (IT) and close to evening type (CET) chronotypes. The athletes completed vertical jump and repeated sprint ability (6 × 20 m) tests at three different times (07:00-08:00 h, 13:00-14:00 h, and 18:00-19:00 h). Blood lactate levels were measured at baseline, post-RSA (3 min), and post-RSA (33 min). Results showed that peak power [F (2,36) = 18.437, p = 0.001, η²p = 0.506] and average power [F (2,36) = 25.677, p = 0.001, η²p = 0.588] for vertical jumps -hands on hips- [F (2,36) = 15.683, p = 0.001, η²p = 0.466] and hands-free [F (2, 36) = 11.200, p = 0.001, η²p = 0.427] and repeated sprint ability (6

SUBMITTER: Kose Y 

PROVIDER: S-EPMC12405246 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature