Abstract
The purpose this study was examine physical motions characteristics of Okinawan-dance was classed by subjective impression. The subjective impression of Kachaacii dance was estimated with principal component Analysos, and the physical motions of shoulder, elbow and wrist joint in Kachaasii was examined with multivariate autoregressive model. The time-series data of positions and angles of three joints were calculated according to the deforming conditions and shielding directions of the ring lights. The results of cumulative power contribution and impulse response showed that mutual interaction of joint rotations produced high scores in subjective evaluation.
