Firstly, the jujutsu descendant judo has no atemi-waza in its match, and jujutsu itself often forbade atemi-waza in "taryu jiai" (a contest between representatives of different schools) and in randori, which both began to be held in many places from around the last days of the Tokugawa shogunate; in today's judo's atemi-waza, many "kata" tend to become an art for a show or for a ceremonial performance.
柔術の流れを汲む柔道の試合に当身技がなく、幕末あたりから各地で行われた他流試合や乱捕稽古も当身技を禁じていた場合が多いこと（現代柔道では多くの形が演武用、セレモニー用となっている傾向がある。)