BACKGROUND:Systematic repetition postures adopted during trainings could generate alterations in the sagittal spinal curvatures. OBJECTIVE:The purposes were: 1) to analyse the sagittal spinal curvatures and pelvic tilt in Latin American style dancers; 2) to compare the spinal sagittal mobility and hamstring muscle extensibility between Latin American style dancers and non-dancers; and 3) to evaluate the influence of wearing dance shoes upon the sagittal spine posture in standing. METHODS:A total of 20 Latin American style professional dancers and 20 non-dancers (control group) were evaluated during standing, relaxed sitting, maximal trunk flexion with knees flexed and extended, lying prone, and maximal trunk extension. Additionally, dancers were analysed while standing barefoot, and wearing heeled-shoes, during forward walking and the paso-doble posture. The hamstring muscle extensibility was evaluated by the active knee extension test. RESULTS:The spinal morphology in Latin American style professional dancers is characterised by lower thoracic kyphosis, lumbar lordosis and anterior pelvic tilt in the standing posture as well as a flexible spine, especially in flexion postures, in addition to suitable hamstring muscle extensibility. CONCLUSIONS:The spinal morphology of Latin American style professional dancers is characterised by lower thoracic kyphosis and lumbar lordosis and anterior pelvic tilt in the standing posture as well as a flexible spine, especially in flexion postures, and suitable hamstring muscle extensibility.

译文

背景:在训练过程中采用的系统性重复姿势可能会导致矢状脊柱弯曲的改变。
目的:目的是:1)分析拉丁美洲风格舞蹈演员的矢状脊柱弯曲度和骨盆倾斜度; 2)比较拉丁美洲舞者和非舞者的脊柱矢状活动度和绳肌的伸展性; 3)评估穿着舞蹈鞋对站立时矢状脊柱姿势的影响。
方法:在站立,放松坐姿,最大屈膝屈膝,屈膝伸直,俯卧,最大伸直躯干的过程中,对总共20名拉丁美洲风格的专业舞蹈演员和20名非舞蹈演员(对照组)进行了评估。此外,还对舞者进行了分析,他们在赤脚站立的过程中赤脚站立,穿着高跟鞋。 the绳肌的可伸展性通过主动膝关节伸展试验进行评估。
结果:拉丁美洲风格的专业舞者的脊柱形态的特征是站立姿势下胸椎后凸,腰椎前凸和前骨盆倾斜,以及灵活的脊柱,尤其是屈曲姿势,此外还具有适当的绳肌可伸展性。
结论:拉丁美洲风格的专业舞者的脊柱形态特征是下胸驼背和腰椎前凸和站立姿势的前骨盆倾斜以及灵活的脊柱,特别是在屈曲姿势中,并且适当的绳肌可伸展性。

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