Thompson Lara A, Badache Mehdi, Cale Steven, Behera Lonika, Zhang Nian
Biomedical Engineering Program, Department of Mechanical Engineering, School of Engineering and Applied Sciences, University of the District of Columbia, 4200 Connecticut Ave. NW, Washington, DC 20008, USA.
Department of Mechanical Engineering, School of Engineering and Applied Sciences, University of the District of Columbia, 4200 Connecticut Ave. NW, Washington, DC 20008, USA.
Sports (Basel). 2017 Nov 8;5(4):86. doi: 10.3390/sports5040086.
Static balance has a relevant influence on athletic performance as well as on reducing the risk of injury. The main goal of this study was to assess soccer athlete versus non-athlete balance performance via displacement and velocity parameters extracted from the center-of-pressure (COP) position time series. In order to accomplish our goal, we investigated standing balance in two male groups with unimpaired balance: non-athletes ( = 12) and collegiate varsity soccer athletes ( = 12). In order to make the standing balancing task more or less difficult, we altered participant base-of-support, as well as vision, yielding static (quiet stance) test conditions increasing in difficulty. From the COP position time series, displacement and velocity parameters were computed and plotted as a function of increasing test condition difficulty level. COP parameters showed steeper increases with increased test difficulty in non-athletes compared to athletes; this demonstrated athletes' better ability to control their balance. We concluded that balance performance could be characterized via COP displacement and velocity response curves. This study lends new insights into how COP parameters can be utilized to determine and characterize improvements in balance between un-impaired subject populations (athletes versus non-athletes).
静态平衡对运动表现以及降低受伤风险具有重要影响。本研究的主要目的是通过从压力中心（COP）位置时间序列中提取的位移和速度参数，评估足球运动员与非运动员的平衡表现。为了实现我们的目标，我们调查了两组平衡能力未受损的男性群体的站立平衡情况：非运动员（n = 12）和大学男子足球运动员（n = 12）。为了使站立平衡任务或多或少具有难度，我们改变了参与者的支撑面以及视觉条件，从而产生难度逐渐增加的静态（安静站立）测试条件。从COP位置时间序列中计算出位移和速度参数，并将其绘制为测试条件难度水平增加的函数。与运动员相比，非运动员的COP参数在测试难度增加时显示出更陡峭的增长；这表明运动员具有更好的平衡控制能力。我们得出结论，平衡表现可以通过COP位移和速度响应曲线来表征。本研究为如何利用COP参数来确定和表征未受损受试者群体（运动员与非运动员）之间平衡的改善提供了新的见解。
