The aim of this paper is to compare the EMG patterns in the Ryukyuan traditional dance and the Indian traditional dance. The dance motion of arm and leg muscles were electromyographically examined. The subjects used in the experiment were one professional dancer of Ryukyuan dance and one professional dancer of Indian dance. The subjects performed the same motions in each dances. And EMG recordings were made with 8 channel electroencephalograph utilizing surface electrodes, 10 mm in diameter. The results obtained were summarized as fallows: 1) The discharge pattern of the arm m. varied between two dances. M. Biceps brachii and M.flexor carpi ulnaris were used in Ryukyuan dance, and M. Biceps brachii, M.flexor carpi ulnaris and M. brachioradialis were used in Indian dance. These showed that there were some differencies of screw like moving of wrists and bend moving of fingers in two dances. 2) The discharge pattern of legs m. were very regular in the Ryukyuan dance, and were irregular in the Indian dance.
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