The boxing footage was enough; it was time for real combat.
After resting for half an hour and regaining her strength, He Jinxia started sparring with another boxer under the guidance of a stunt coordinator.
Both sides practiced individually a few times and, after verifying their readiness, they proceeded to put on protective gear.
The gear was designed to protect vital areas, such as the head, elbows, and knees, all conspicuously green.
During the actual fight, they targeted the protected areas, meaning they were fighting against the protective gear.
With post-production special effects, the green safety gear would be removed, making it look as though they were hitting the body directly.
To prevent accidents, the fighters slowed their actions, delaying a simple movement by about two seconds which otherwise needed only a second.