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在猫跳躍中達成劈叉姿勢。

Achieving the Split Position in a Saut de Chat Leap.

作者信息

Jarvis Danielle N, Kulig Kornelia

机构信息

Dep. of Kinesiology, California State University Northridge, 18111 Nordhoff St., Northridge, CA 91330, USA. Tel 818-677-5827.

出版信息

Med Probl Perform Art. 2020 Jun;35(2):68-72. doi: 10.21091/mppa.2020.2011.

Abstract

OBJECTIVES

Dancers frequently perform complex jumping skills that involve achieving specific body positions while in the air. An examination of how skilled dancers achieve these aesthetic demands can provide information useful for dance training. The purpose of this study was to examine the temporal coordination of the hip and knee joints during the flight phase of a saut de chat leap, where dancers aim to achieve a split position in the air when the center of mass (COM) reaches peak height.

METHODS

Thirty healthy, experienced dancers with 22.5±4.5 years of dance training performed 5 saut de chat leaps. The timing of peak hip and knee joint angles and velocities for the takeoff and leading legs were extracted and compared to the time when COM reached peak height in the leap using a repeated measures ANOVA, with post-hoc comparisons made using paired t-tests.

RESULTS

Dancers demonstrated significant differences in timing associated with achieving the split position (main effect p<0.001), with only peak leading leg hip flexion occurring at a similar time to the COM reaching peak height (paired t-test p=0.074).

CONCLUSIONS

The results of this study provide insight into coordination patterns used by trained dancers. Trained dancers demonstrate patterns in timing that may be important for successful performance. The hip and knee coordination patterns during flight demonstrate how dancers work to achieve the desired aesthetics of a saut de chat leap. However, it appears that dancers do not reach the full split position at the height of the leap, as would be aesthetically desirable.

摘要

目的

舞者经常进行复杂的跳跃技巧,包括在空中达到特定的身体姿势。研究熟练舞者如何实现这些美学要求,可为舞蹈训练提供有用信息。本研究的目的是考察在猫跳(saut de chat)跳跃的空中阶段,髋部和膝关节的时间协调性,在这个动作中,舞者的目标是在质心(COM)达到峰值高度时在空中实现劈叉姿势。

方法

30名健康、有经验的舞者,接受过22.5±4.5年的舞蹈训练,进行了5次猫跳。提取起跳腿和主导腿的髋、膝关节角度和速度峰值的时间,并使用重复测量方差分析,将其与跳跃中质心达到峰值高度的时间进行比较,事后比较采用配对t检验。

结果

舞者在实现劈叉姿势的时间上表现出显著差异(主效应p<0.001),只有主导腿髋部屈曲峰值出现的时间与质心达到峰值高度的时间相近(配对t检验p=0.074)。

结论

本研究结果为训练有素的舞者所采用的协调模式提供了见解。训练有素的舞者在时间安排上表现出的模式,可能对成功表演很重要。空中阶段髋部和膝关节的协调模式,展示了舞者如何努力实现猫跳所需的美学效果。然而,看起来舞者在跳跃最高点时并未达到理想美学效果中那样的完全劈叉姿势。

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