Xue Sheng
All weight is underside
OK, how about Greek Pankration, Wrestling, and Boxing? Those were what many today would prefer to call "Matial Sports." But people still trained to it as a lifestyle and it wasn't exactly unheard of for participants to die during competitions.
Peace favor your sword,
Kirk
And boxers have died in the ring too, MMA, Sanda, BJJ all have some pretty bad injuries too..
Different focus than the average person out there doing "martial arts" today