Chelsea's women's team become first club to tailor training to menstrual cycles

Chelsea coach Emma Hayes, together with her coaching staff and the great help of Dr. Bruinvels, has developed a program to measure the menstrual cycle and see how it affects the performance of their players.

The blue club has become the first to adapt training to the menstrual cycle of its players, making it a revolutionary measure in women's football across the globe. 

The Telegraph explains how Hayes led this groundbreaking study in the wake of a defeat in the 2016 FA Cup final against Arsenal, when the England coach realised that much of her squad was on their period and felt that measuring its effect on performance could be interesting. 

So she drew up an individualised training programme for this factor and its consequences, and also adjusted training sessions according to the time of the period in which each player is in, as there are players who suffer from such intense pain that they are unable to play at the highest level.