Comparison of Jumping Postures while Ballet Dancer perform Grand Jeté Using Right and Left Legs

Abstract

This study focuses on the landing of a grand jeté, focusing on the angular changes and the angular velocity of the three joints of the lower limb as the lower limb posture. The purpose of the study was to investigate the relationship between impact force and lower limb posture, and from a kinematic point of view by comparing the difference between the left and right lower limb three joint angles during landing. Eight female professional ballet dancers were subjects. The results showed a negative correlation between max FZ and ankle angle change and hip mean angular velocity, and a weak negative correlation between max FZ and hip angle change. However, there was no significant difference between the left and right leg landings. There was a significant difference between the angle of the hip joint at the moment of landing and the angle of the hip joint at max FZ. When a dancer lands on the right leg compared to the left leg landing, the dancer is likely to land with the lower leg posture extended until just before landing.