Sport science body to track female athletes’ hormonal changes linked to menstruation

English Institute of Sport to roll out saliva tests tracking hormones that may drive fluctuation in women's performance

Highs and lows are a feature of any athlete's career, but for some female contestants, these peaks and troughs in performance may come more regularly - driven by hormonal changes associated with their menstrual cycles.

Now, the English Institute of Sport (EIS) is seeking to level the playing field through the rollout of regular saliva testing to track the rise and fall of two key drivers of these monthly changes: oestrogen and progesterone.