Selection of Useful Parameters to Evaluate Center-of-Foot Pressure Movement
Selection of Useful Parameters to Evaluate Center-of-Foot Pressure Movement
复制标题
选择有用的参数来评估足部中心压力运动
DOI：
10.2466/pms.103.3.959-973
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发表时间：
2006
影响因子：
1.6
通讯作者：
M. Noda
中科院分区：
文献类型：
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作者：
S. Demura;T. Kitabayashi;M. Noda
本研究旨在通过对220名健康大学生的测量，客观地总结评价足中心压力的指标，筛选出信度和效度较高的指标。另外，选取50名健康大学生进行交叉效度检验。在休息1分钟的情况下进行3次足部中心压力测量，并使用试验2和3的平均值进行分析。数据采样频率为20 Hz。从距离、分布、面积、速度、频谱和矢量6个域中选择34个参数。因子分析的结果解释了以下四个因素：单位时间摆动，前后摆动，左右摆动和高频带摆动。其组内相关系数非常高（ICC = .89-.95）。通过逐步回归分析选择代表每个因素的五个参数。在原始组和交叉效度组中，由上述五个参数估计的平均因子得分之间没有显著差异，并且两组中因子之间的关系非常高。通过上述四个因素可以预测和系统评价足中心压力。从每个因子中选取的5个参数被认为是有效的，具有较高的效度和实用性。
This study aimed to objectively summarize the parameters for evaluating the center-of-foot pressure and to select useful parameters with high reliability and validity with 220 healthy university students. In addition, 50 healthy university students were selected to examine cross validity. The measurement of center-of-foot pressure was carried out 3 times with a 1-min. rest and the mean of Trials 2 and 3 was used for the analysis. The data sampling frequency was 20 Hz. 34 parameters were selected from 6 domains: distance, distribution, area, velocity, spectrum, and vector. As a result of factor analysis the following four factors were interpreted: unit time sway, front-back sway, left-right sway and high frequency band sway. Their intraclass correlation coefficients were very high (ICC = .89–.95). Five parameters representing each factor were selected using stepwise selection by regression analysis. There were no significant differences between the mean factor scores estimated by the above five parameters in the original and in cross-validity groups, and relationships between factors in both groups were very high. The center-of-foot pressure may be predicted and systematically evaluated by the above four factors. Five parameters selected from each factor are considered to be useful ones with high validity and practicability.