A Comparative Study on Orientation density to the Front and Path Length of Rotational Axis with/without Music during Fouette Turns

S, G. OH, Y. K. AHN, A Comparative Study on Orientation density of Head and Trunk to the Front with/without music during Fouette Turns. Korean Journal of Sport Biomechanics, Vol. 00, No. 0, pp. 00-00, 2013. Fouette turns are repeated pir- ouettes which begin as a normal pirouette en dehors but include a movement that allows the rotational momentum lost to friction to be regained once each revolution. The purpose of this study was to investigate on orientation density of head/trunk to the front with and without music to which dancers perform the Fouette turn in time. 10 female dancers(21.0±1.4 years old, height; 165.3±3.9 cm, weight: 50.5±5.7 kg) who are the students of S University participated in this study. It took shorter time to perform one revolution of fouette turn with music (930 ms) than without music (961 ms), which reason may be the shorter time of phase 2 in which the rotational momentum is not produced but lost to fiction. Orientation density of trunk to the front was smaller with music (.176) than without music (.196), while the one of head had not significant difference between with and without music. And the path length of marker on 2 nd left metatarsal bone during one revolution was smaller with music (35.7 cm) than without music (40.2 cm) but the difference was not statistically significant (p=.267).