Bogu Kumite used for empty hand fighting is unique to Ryukyu Kempo.  Shigeru Nakamura saw the value this type of training provided Kendo students, so in 1960 he modified the Kendo gear comprising of a "men" (helmet), and Do (body armor) to be used in full contact sparring.  As a training tool it will challenge one's will and character in a stressed induced, and controlled environment which prepares Ryukyu Kempo practitioners for real life protection.  The gear restricts breathing, peripheral vision, and allows enough protection to prevent serious injury.  

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