Known as full contact karate until 1978, kickboxing is a relatively new, hybrid martial art form described as karate mixed with boxing. However, there are multiple kinds of kickboxing, including Japanese, Dutch, American and others.
Kickboxing has been a part of the World Games since 2014. The World Association of Kickboxing Organizations provides the rule sets.
To learn more, visit: https://www.theworldgames.org/sports/Kickboxing-57.