Fig. 6.

Testosterone does not modulate left atrial conduction velocity. (A) Exemplar male and female left atrial activation maps treated with 0 nM, 1 nM or 100 nM testosterone. (B—C) Male and female mean conduction velocity with 0 nM, 1 nM and 100 nM testosterone treatment. (D) Testosterone-induced change in conduction velocity in male vs female left atria. (E-F) Male and female conduction velocity spatial heterogeneity with increasing testosterone concentration (100 ms cycle length). Statistical analysis was conducted using repeated measures one-way ANOVA. P = ns in all cases; n = 6–7. M, male; F, female.