Jiu Jitsu training typically entails real-time sparring, referred to as rolling

https://sweepguard196.scriblorax.com/posts/checking-out-gracie-barra-jiu-jitsu-in-san-diego-a-look-at-the-regional-scene

Jiu Jitsu training typically includes real-time sparring, known as rolling, where students apply methods in real-time versus immune partners