What sport bite work is
Some dog sports include a phase where a dog bites protective gear worn by an experienced helper. It happens in a structured setting, with rules, equipment and people who understand dogs. It is a game with boundaries, and the dog is expected to stop when told.
What a bite problem is
A bite problem is a pattern of biting or threatening in everyday life. It may involve family, visitors, strangers or other animals. Unlike sport work, it is not controlled, and the dog may be frightened, in pain or guarding something.
Why one does not fix the other
Some owners think teaching a dog to bite in a sport will make it "release its energy." In reality it can add intensity to a dog that already struggles with control. Dogs with bite problems need a behavior evaluation first.
Safe rule of thumb
If your dog has bitten, or you feel afraid of it, do not look for a sport as a remedy. Talk to your veterinarian and a qualified behavior professional.

This page is general information. It is not veterinary, medical, legal or behavior consultation advice, and it never teaches anyone to train a dog to bite. If a dog has bitten or seems dangerous, involve your veterinarian and a qualified behavior professional.
