Holden M K, Gill K M, Magliozzi M R, Nathan J, Piehl-Baker L
Phys Ther. 1984 Jan;64(1):35-40. doi: 10.1093/ptj/64.1.35.
This study of subjects with multiple sclerosis or hemiparesis assessed the interrater and test-retest reliability of temporal-distance (TD) gait measures and examined the relationship of TD values to functional ambulation ability. Sixty-one subjects ambulated twice on a 9-m (30-ft) paper walkway and rested 15 minutes between trials. An ink footprint record and ambulation time were used to calculate velocity, cadence, step and stride lengths, stride length to lower extremity length ratio, and step- and stride-time differentials. Subjects were rated on a scale that assessed the amount of manual assistance required for ambulation. Interrater and test-retest reliability were high for all TD measures except stride-time differential for the total sample and within diagnostic categories. The TD values were highly reliable in all functional categories except one. All TD measures except stride- and step-time differential displayed a strong linear relationship to the functional ambulation category. Implications for using TD measures in clinical settings are discussed.
这项针对多发性硬化症或偏瘫患者的研究评估了时间距离（TD）步态测量的评分者间信度和重测信度，并研究了TD值与功能性步行能力之间的关系。61名受试者在一条9米（30英尺）的纸质通道上行走两次，两次试验之间休息15分钟。使用墨水脚印记录和步行时间来计算速度、步频、步长和步幅长度、步幅长度与下肢长度的比值，以及步幅和步幅时间差。根据评估步行所需人工辅助量的量表对受试者进行评分。除了总样本和诊断类别中的步幅时间差外，所有TD测量的评分者间信度和重测信度都很高。TD值在除一个功能类别外的所有功能类别中都具有高度可靠性。除步幅和步幅时间差外，所有TD测量与功能性步行类别均呈现出强线性关系。文中讨论了在临床环境中使用TD测量的意义。
