Regarding the correlations between HRV variables at 15 min and cytokines at 48 h post-exercise (which represents the resolution period), a similar pattern of correlations was found, a positive correlation between LF/HF and IL-12 and IL-6, and negative for R-R interval, RMSSD and HF/TP with both cytokines. This evidence concerns the gene IL6 and hydrops fetalis.