de Mello Viero Carolina Cabral, Kessler Luíza Pillar, Pinto Camila, Gontijo Kaanda Nabilla Souza, da Rosa Rodrigo Gomes, Kleiner Ana, Peyré-Tartaruga Leonardo Alexandre, do Pinho Alexandre Severo, de Souza Pagnussat Aline
Programa de Pós-Graduação em Ciências da Reabilitação, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Brazil.
Departamento de Fisioterapia, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Brazil.
J Dance Med Sci. 2017 Sep 15;21(3):109-114. doi: 10.12678/1089-313X.21.3.109.
The purpose of this study was to evaluate the midfoot longitudinal arch height and correlate it with active hip external rotation (ER) in dancers during static postures and technical steps of classical ballet (i.e., first position, demi-plié, battement fondu à la seconde, pas jeté à la seconde, and grand jeté à la seconde). A 3D motion analysis system was used for kinematic analysis. The arch height was significantly reduced during the battement fondu à la seconde, pas jeté à la seconde, and grand jeté à la seconde when compared to standing (p = 0.000 for all comparisons), first position (p = 0.000, p = 0.000, and p = 0.001, respectively) and demi-plié (p = 0.015, p = 0.003, and p = 0.006, respectively). No significant correlation was found between arch height and active hip external rotation (p > 0.05). Hence, active hip external rotation does not seem to be related to midfoot pronation in this sample. Other factors, such as intrinsic and extrinsic foot muscle strength, may be related to the midfoot arch height. These findings contribute to a better understanding of ballet steps, but future studies are required to clarify this topic completely.
本研究的目的是评估舞者在古典芭蕾舞的静态姿势和技术动作（即一位、半蹲、二位擦地、二位小踢腿和二位大踢腿）过程中足中纵弓高度，并将其与主动髋关节外旋（ER）相关联。使用三维运动分析系统进行运动学分析。与站立相比，在二位擦地、二位小踢腿和二位大踢腿过程中，足弓高度显著降低（所有比较的p = 0.000），与一位相比（分别为p = 0.000、p = 0.000和p = 0.001）以及与半蹲相比（分别为p = 0.015、p = 0.003和p = 0.006）。未发现足弓高度与主动髋关节外旋之间存在显著相关性（p > 0.05）。因此，在该样本中，主动髋关节外旋似乎与足中内翻无关。其他因素，如足部内在和外在肌肉力量，可能与足中弓高度有关。这些发现有助于更好地理解芭蕾舞动作，但需要进一步的研究来完全阐明这一主题。
