RELIABILITY OF SELECTED GROUND REACTION FORCE PARAMETERS DURING WALKING
RELIABILITY OF SELECTED GROUND REACTION FORCE PARAMETERS DURING WALKING
复制标题
DOI：
10.1016/0167-9457(90)90023-7
复制
发表时间：
1990-04-01
影响因子：
2.1
通讯作者：
MCNIVEN, SL
中科院分区：
文献类型：
--
作者：
HAMILL, J;MCNIVEN, SL
本研究的目的是确定适当的试验次数，以建立一个稳定的平均值和日内和日间的可靠性，在步行过程中选定的地面反作用力（GRF）参数。使用序贯估计技术确定需要10项试验来确定任何试验区组的稳定平均值，因此，为每例受试者的每个参数生成了每个参数的10项试验平均值。使用数据稳定性和一致性的统计检验确定可靠性。方差分析表明，在两个区块和天之间的数据高度稳定。在每一天的区组之间和不同天之间生成皮尔逊积矩相关系数，以检验数据的一致性。在第2天和第3天（r > 0.82）的区组之间的相关系数通常高于第1天（r > 0.71）。第2天与第3天的相关性大于第1天与第2天的相关性（r > 0.86）。这些数据表明：（1）在该区块中进行10次试验预热后，至少需要10次试验才能获得稳定的GRF数据;以及（2）测试应在一天以上进行，使用第1天的结果作为练习。
The purpose of this study was to determine the appropriate number of trials to establish a stable mean and the intraday and interday reliability of selected ground reaction force (GRF) parameters during walking. A sequential estimation technique was used to determine that 10 trials were required to establish a stable mean in any block of trials and, as a result, 10-trial mean values for each parameter were generated for each parameter for each subject. Reliability was determined using statistical tests for stability and consistency of the data. ANOVA indicated a high degree of stability in the data both between blocks and days. Pearson Product Moment Correlation Coefficients were generated between blocks on each day and between days to test the consistency of the data. Correlation coefficients were generally higher between blocks on days 2 and 3 (r > 0.82) than on day 1 (r > 0.71). The correlations between days 2 and 3 were higher (> 0.86) than between days 1 and 2 (r > 0.75). These data imply that: (1) at least 10 trials are necessary for stable GRF data after a 10-trial warm-up in that block; and (2) testing should take place on more than one day using the day-1 results as a practice session.