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不同脚位的舞者与非舞者之间平衡能力和运动控制的差异

Differences in Balance Ability and Motor Control between Dancers and Non-Dancers with Varying Foot Positions.

作者信息

Harmon Brooke V, Reed Andrea N, Rogers Rebecca R, Marshall Mallory R, Pederson Joseph A, Williams Tyler D, Ballmann Christopher G

机构信息

Department of Kinesiology, Samford University, 800 Lakeshore Dr., Birmingham, AL 35229, USA.

出版信息

J Funct Morphol Kinesiol. 2020 Jul 20;5(3):54. doi: 10.3390/jfmk5030054.

Abstract

The purpose of this study was to investigate balance and motor control in dancers and non-dancers with different foot positions. Physically active female dancers ( = 11) and non-dancers ( = 9) randomly completed two balance tests in a single visit: 1) Y-balance test (YBT), and 2) motor control test (MCT). Each test was completed with two different foot positions: 1) first ballet position in which heels were touching and feet were externally rotated to 140 degrees, and 2) sixth ballet position in which heels were spaced 10 cm apart and forward parallel. For the YBT, participants completed three attempts at anterior, posteromedial, and posterolateral reaches, which were averaged and standardized to limb length for a composite score. For the MCT, participants completed a multi-directional target test on a Biosway balance system, and accuracy and time to completion were analyzed. Findings revealed no differences in YBT score ( = 0.255), MCT score ( = 0.383), or MCT time ( = 0.306) between groups in the sixth position. However, dancers displayed better YBT scores ( = 0.036), MCT scores ( = 0.020), and faster MCT times ( = 0.009) in the first position. Results suggest that superior balance and motor control in dancers may be limited to less innate dance-specific foot positions.

摘要

本研究的目的是调查不同脚位的舞者和非舞者的平衡能力及运动控制能力。身体活跃的女性舞者(n = 11)和非舞者(n = 9)在一次就诊中随机完成两项平衡测试:1)Y平衡测试(YBT),以及2)运动控制测试(MCT)。每项测试均采用两种不同的脚位完成:1)第一芭蕾舞位,脚跟相触,双脚向外旋转140度;2)第六芭蕾舞位,脚跟相距10厘米且向前平行。对于YBT,参与者在前向、后内侧和后外侧伸展方向各进行三次尝试,将其平均值标准化为肢体长度以获得综合得分。对于MCT,参与者在Biosway平衡系统上完成多方向目标测试,并分析完成的准确性和时间。研究结果显示,在第六脚位时,两组之间的YBT得分(p = 0.255)、MCT得分(p = 0.383)或MCT时间(p = 0.306)均无差异。然而,在第一脚位时,舞者的YBT得分更好(p = 0.036)、MCT得分更好(p = 0.020)且MCT时间更快(p = 0.009)。结果表明,舞者优越的平衡能力和运动控制能力可能仅限于不太常见的特定舞蹈脚位。

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