Wójcik Małgorzata, Siatkowski Idzi
State School of Higher Vocational Education, Department of Public Health in Pila, Poland.
Department of Mathematical and Statistical Methods, Poznan University of Life Sciences, Poland.
J Phys Ther Sci. 2014 Jan;26(1):41-4. doi: 10.1589/jpts.26.41. Epub 2014 Feb 6.
[Purpose] Learning ballet is connected with continuous use of the locomotor system while subjecting it to high loads. Therefore, we conducted some research defining the appearance of weak links in the motor system, in order to eliminate the risk of injury. [Methods] Fifty-two female students of a ballet school were examined. To identify weak links, low-threshold Performance Matrix tests were performed. An analysis of weak link occurrence in the locomotor system was carried out, using two way analysis of variance ANOVA Tukey's HSD test, clustering methods and Principal Component Analysis (PCA). [Results] The average age of the subjects was 11.64±0.53 years (mean ± standard deviation), their average body height was 151.1±7.5 cm, their average body weight was 35.92±5.41 kg, and their average time of learning at ballet school was 2.17±0.65 years. We found that there were significant differences in weak links occurrence in the motor system of every girl examined. [Conclusions] Weak links were found in every location of the motor system. Our results show that the influence of weak link location is essentially different from their occurrence, and that learning ballet has a significantly different impact on the number of weak links in different locations.
[目的]学习芭蕾舞与运动系统的持续使用相关，同时使其承受高负荷。因此，我们开展了一些研究来确定运动系统中薄弱环节的表现，以消除受伤风险。[方法]对一所芭蕾舞学校的52名女学生进行了检查。为识别薄弱环节，进行了低阈值表现矩阵测试。使用双向方差分析（ANOVA）、Tukey's HSD检验、聚类方法和主成分分析（PCA）对运动系统中薄弱环节的出现情况进行了分析。[结果]受试者的平均年龄为11.64±0.53岁（均值±标准差），平均身高为151.1±7.5厘米，平均体重为35.92±5.41千克，在芭蕾舞学校的平均学习时间为2.17±0.65年。我们发现，在每个接受检查的女孩的运动系统中，薄弱环节的出现存在显著差异。[结论]在运动系统的各个部位都发现了薄弱环节。我们的结果表明，薄弱环节位置的影响与它们的出现情况本质上不同，并且学习芭蕾舞对不同部位薄弱环节的数量有显著不同的影响。
