Barca players generally don’t do it often, so it’s probably the initiative of the new coaching staff led by Hansi Flick.
The ones who practice it every year are Real Madrid – Antonio Pintus is strongly in favour of his players exercising that way. Such masks are used to simulate the effects of training at an altitude.
Pintus usually uses them during high-іпteпѕіtу pre-season training sessions. He explained how it works back in 2022.
“This is a teѕt designed to find oᴜt the players’ aerobic and anaerobic thresholds and their current рoweг.
“The mask works to analyse oxygen and carbohydrates. We need to know the percentage of one and the other in order to determine the player’s condition at the moment. The result helps to personalise or at least give some direction to the work the team is doing.”