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首页> 外文期刊>Journal of Biomechanics >Test-retest reliability for assessment of postural stability using center of pressure spatial patterns of three-dimensional statokinesigrams in young health participants
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Test-retest reliability for assessment of postural stability using center of pressure spatial patterns of three-dimensional statokinesigrams in young health participants

机译：用于评估姿势稳定性的测试 - 使用年轻卫生参与者的三维立笛性的姿态稳定性评估

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Introduction: This study investigated the test-retest reliability for assessment of postural stability using a quantitative method for identification of center of pressure (CoP) spatial patterns of three-dimensional statokinesigrams (3D-SKG). Methods: Twenty-one healthy participants (11 women, age 26.8±7.2 years, body mass index 25.6±5.3kg/m2) were submitted to four consecutive 60-s trials while performing undisturbed upright stance with feet together, with or without visual input each. CoP data was used to calculate parameters from the 3D-SKG (quantity of high-density regions, nHDR). Stabilogram (standard deviation, range, maximum velocity) and statokinesigram (elliptical area, average velocity) were also calculated. Intraclass correlation coefficients (ICC2,1 and ICC2,4) and repeated-measures analysis-of-variance were used for statistical analysis. Results: Significant differences in nHDR among trials were not noticed in both protocols, as well as for any parameter of the stabilogram or statokinesigram (all P0.05). Reliability for identification of nHDR with or without visual input was either excellent (ICC2,4=0.844 and 0.792, respectively) or fair to good (ICC2,1=0.575 and 0.488, respectively). Reliability of parameters from stabilogram and statokinesigram varied from excellent to poor for either postural task with (ICC2,4 range: 0.961-0.491; ICC2,1 range: 0.859-0.194) or without visual input (ICC2,4 range: 0.990-0.444; ICC2,1 range: 0.960-0.166). Conclusions: Test-retest reliability for identification of CoP spatial patterns is excellent or fair to good using averaged or single measurements of nHDR, respectively. No learning effect on repeated trials for identification of CoP spatial patterns was detected but deserves further research.
机译：介绍：本研究研究了使用定量方法评估姿势稳定性的测试 - 保持性可靠性，以识别三维立笛（3D-SKG）的压力（COP）空间模式。方法：二十一位健康参与者（11名女性，年龄26.8±7.2岁）在连续四个60-S试验中提交到四个连续的60-S试验，同时在脚下进行不受干扰的直立姿态，有或没有视觉输入每个。 COP数据用于计算3D-SKG（高密度区域，NHDR）的参数。还计算了稳定值（标准偏差，范围，最大速度）和表达因子（椭圆区域，平均速度）。脑内相关系数（ICC2,1和ICC2,4）和重复测量的差异分析用于统计分析。结果：两种方案中没有注意到试验中NHDR之间的显着差异，以及稳定值或表立管的任何参数（所有P＆GT; 0.05）。具有或没有视觉输入的NHDR鉴定的可靠性是优异的（ICC2,4 = 0.844和0.792）或公平的（ICC2,1 = 0.575和0.488）。来自STABILACK和Statokneyigram的参数的可靠性因姿势任务而异（ICC2,4范围：0.961-0.491; ICC2,1）或0.859-0.194）或无视觉输入（ICC2,4范围：0.990-0.444; ICC2,1范围：0.960-0.166）。结论：用于识别COP空间模式的测试 - 重新测试是优异的或公平的使用平均或单次NHDR的良好。检测到对重复试验的学习效应被检测到识别警察空间模式，但值得进一步研究。

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