Biological sex does not influence the peak cardiac output response to twelve weeks of sprint interval training.

ABSTRACT: Sprint interval training (SIT) increases peak oxygen uptake (V̇O_2peak) but the mechanistic basis is unclear. We have reported that 12 wk of SIT increased V̇O_2peak and peak cardiac output (Q̇_peak) and the changes in these variables were correlated. An exploratory analysis suggested that Q̇_peak increased in males but not females. The present study incorporated best practices to examine the potential influence of biological sex on the Q̇_peak response to SIT. Male and female participants (n = 10 each; 21 ± 4 y) performed 33 ± 2 sessions of SIT over 12 wk. Each 10-min session involved 3 × 20-s 'all-out' sprints on an ergometer. V̇O_2peak increased after SIT (3.16 ± 1.0 vs. 2.89 ± 1.0 L/min, η²_p = 0.53, p < 0.

SUBMITTER: Bostad W 

PROVIDER: S-EPMC10752867 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature