An Assessment of Postural Sway in Ballet Dancers During First Position, Relevé and Sauté with Accelerometers

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• 作者：Christopher W. Hinton-Lewis^a ; ^c ; Elle McDonough^a ; ^c ; Gene M. Moyle^b ; David V. Thiel^c ; ^d ; ^{d.thiel@griffith.edu.au" class="auth_mail" title="E-mail the corresponding author}
• 关键词：accelerometer ; classical dance ; demi-plié ; first position ; position ; sway ; Bras bas ; jumps
• 刊名：Procedia Engineering
• 出版年：2016
• 出版时间：2016
• 年：2016
• 卷：147
• 期：Complete
• 页码：127-132
• 全文大小：290 K

文摘

Classical ballet is a performance art where unintentional and uncontrolled movement degrades the aesthetic. Vertical torso movement can induce body tilt. Postural sway was measured in pre-professional ballet dancers when performing simple vertical movements. 47 pre-professional dancers (5 males and 42 females, mean age in years = 19.2, SD= ± 1.3) on a full time undergraduate dance program were asked to stand in first position and perform a demi-plié, a relevé and a sauté. These movements were performed in a continuous cycle undertaken 15 consecutive times. The first 5 cycles were undertaken as practice. The second set of 5 cycles were recorded with the arms held in Bras bas, with the final 5 having the arms held in fifth position (rounded arms placed above the head). Accelerometers were attached to the lumber spine (L4) and thoracic spine (T1-T2). The tilt during the demi-plié prior to the sauté and relevé increased significantly for both arm positions. The male participants preparative angle change was much larger than the female participants (p = 0.07). No significant angle change was observed between the Bras bas and arms in fifth position for the sauté but the change is significant for the relevé (p = 0.007). Exaggerated forward tilt is undesirable both aesthetically and biomechanically. Small accelerometer sensors on the spine can allow self-monitoring practice of these basic classical ballet movements.