Kędziorek Justyna, Błażkiewicz Michalina
Józef Piłsudski University of Physical Education in Warsaw, Warsaw, Poland.
Acta Bioeng Biomech. 2022;24(2):55-63.
The symmetry of feet loading and adequate postural control are crucial aspects of proper squat performance. The study aimed to evaluate the effect of various stance widths during squat on postural control and symmetry of feet loading.
Thirty healthy individuals participated in this study. Each participant performed one type of squat with a narrow stance (NS), hip stance (HS) and wide stance (WS).
A significantly higher value of CoP path length, the velocity of sways and Area95 were obtained for the WS squat compared to NS and HS. In addition, the wide feet setting significantly affected not only the feet loading symmetry but also the strategy (high LyE), the amount of irregularities (high SampEn) and the CoP time-series roughness complexity (high FD). It has been shown that as the base of support grew, the asymmetry index grew.
The wide squat is less stable, requiring more complex postural control behavior and more flexibility. Performing this squat significantly shifts the pressure to the dominant limb.
足部负重的对称性和适当的姿势控制是正确深蹲动作的关键方面。本研究旨在评估深蹲时不同站立宽度对姿势控制和足部负重对称性的影响。
30名健康个体参与了本研究。每位参与者进行了一种窄站距（NS）、髋宽站距（HS）和宽站距（WS）的深蹲。
与NS和HS相比，WS深蹲的COP路径长度、摆动速度和95%面积的值显著更高。此外，宽脚设置不仅显著影响足部负重对称性，还影响策略（高LyE）、不规则程度（高样本熵）和COP时间序列粗糙度复杂度（高FD）。研究表明，随着支撑面增大，不对称指数增加。
宽站距深蹲稳定性较差，需要更复杂的姿势控制行为和更大的灵活性。进行这种深蹲会显著将压力转移到优势肢体上。
