What is "isshin-ryu"

is a style of Okinawan karate founded by Tatsuo Shimabuku (島袋 龍夫) in 1956. Isshin-Ryū karate is largely a synthesis of Shorin-ryū karate, Gojū-ryū karate, and kobudō. The name means, literally, "one heart way" (as in "wholehearted" or "complete"). In 1989 there were 336 branches of Isshin-ryū throughout the world (as recorded by the IWKA), most of which were concentrated in the United States.