Trinity Laban Conservatoire of Music and Dance, London, United Kingdom;, Email:
Trinity Laban Conservatoire of Music and Dance, London, United Kingdom; Kingston University, London, United Kingdom.
J Dance Med Sci. 2022 Mar 15;26(1):50-57. doi: 10.12678/1089-313X.031522g. Epub 2021 Dec 5.
Current dynamic balance tests do not sufficiently test all aspects of balance required for dancers in everyday training and performances. The aim of this study was to examine alterations to the Star Excursion Balance Test (SEBT) to ensure a more dance-specific protocol. Twenty-four healthy ballet and contemporary dancers (age: 22.21 ± 6.47 years) participated in completing five different variations of the SEBT. This research implemented upper-body restrictions commonly used in dance settings and tested the effects of two different foot positions, parallel and turned out, as well as two alternate balance surfaces, a foam balance pad and a firm yoga block. Reach distances (percent of limb length), center of pressure (COP, cm²), error scores, and time to completion were measured. Overall, the dance-specific upper body restrictions did not affect the dancer's ability to reach maximally and achieve a successful trial as there were no significant differences between the original SEBT and the dance-specific SEBT parallel condition (p = 1.00). The foam and block conditions were found to be significantly more difficult due to lower reach distance values, higher COP values, and higher error score values when compared to the original, parallel, and turnout positions (p < 0.05). Lastly, it was discovered that 62.61% of all errors made were in the crossed side and crossed front spokes, suggesting these are the most difficult reach directions to accomplish. The variations used in the study will aid in developing a reliable dance-specific dynamic balance test.
目前的动态平衡测试并不能充分测试舞蹈演员在日常训练和表演中所需的所有平衡方面。本研究的目的是检验星型偏移平衡测试（SEBT）的改变，以确保更具舞蹈特异性的方案。24 名健康的芭蕾和现代舞者（年龄：22.21 ± 6.47 岁）参与完成了 SEBT 的五种不同变体。本研究实施了舞蹈环境中常用的上半身限制，并测试了两种不同的脚位，即平行和外展，以及两种不同的平衡表面，泡沫平衡垫和坚固的瑜伽块的效果。测量了伸展距离（肢体长度的百分比）、中心压力（COP，cm²）、误差得分和完成时间。总体而言，舞蹈特异性上半身限制并没有影响舞者的最大伸展能力和成功完成试验，因为原始 SEBT 和舞蹈特异性 SEBT 平行条件之间没有显著差异（p = 1.00）。与原始、平行和外展位置相比，泡沫和木块条件的伸展距离值较低，COP 值较高，误差得分值较高，因此发现这些条件更加困难（p < 0.05）。最后，发现所有错误中有 62.61%出现在交叉侧和交叉前辐条上，这表明这些是最难完成的伸展方向。研究中使用的变体将有助于开发可靠的舞蹈特异性动态平衡测试。
