" Nage - waza " is mostly attributed to what martial art ?
From a technical point of view , Nippon Kempo is a martial art system based on techniques of striking and kicking , ( " atemi - waza " ) , blocking ( " uke - waza " ) , throwing ( " nage - waza " ) , reverse joint locks ( " kansetsu - gyakutori - waza " ) and ground combat ( " ne - waza " ) .