Whereas the thresholds for rotational drive are the identical for each female and male gamers at 4,500 radians, an acceleration alert is triggered at 75G for males and 65G for girls.
It’s believed that girls are extra vulnerable to concussion as their sport incorporates fewer head acceleration occasions, however an identical price of concussion to the boys’s sport.
Instrumented mouthguards, which have been first used within the worldwide sport in WXV in 2023, aren’t necessary.
Some gamers have medical causes for not carrying them, whereas others have considerations over the usage of their information or a Bluetooth unit inside their mouth.
Nevertheless World Rugby says there was “full opt-in” from gamers set to compete on the 2025 Rugby World Cup, with two gamers keen to put on the mouthguards, however unable to take action because of dental braces.
The match begins on Fridayc, 22 August, when hosts England tackle the US.
