If you are looking for an activity that provides a workout with the benefit of learning a practical form of self-defense, this may be for you. Beginners are welcome! Isshinryu Karate is a classical style of Okinawan Karate. Participants learn basic, forms (kata), sparring techniques and a direct, effective form of self-defense. Robert Sherman, eighth degree black belt and chief instructor, has taught Isshinryu Karate concurrently at HSU since 1979.