Simplify the following text for a Grade 7 native English-speaking person.
Original: International governing bodies include World Association of Kickboxing Organizations , World Kickboxing Association , International Sport Karate Association , Â International Kickboxing Federation , World Kickboxing Federation , World Kickboxing Network , among others .
Simplified: Kickboxing can be practiced for general health , or as the fight sport . The word kickboxing represents a set of disciplines or sports of combat that use the feet and the fists .