School of Health Sciences, University of South Australia, Adelaide 5000, Australia.
Gait Posture. 2013 Jun;38(2):349-51. doi: 10.1016/j.gaitpost.2012.11.010. Epub 2012 Dec 7.
Confidence in 3D multi-segment foot models has been limited by a lack of repeatability data, particularly in older populations that may display unique functional foot characteristics. This study aimed to determine the intra and inter-observer repeatability of stance phase kinematic data from a multi-segment foot model described by Leardini et al. [2] in people aged 50 years or older. Twenty healthy adults participated (mean age 65.4 years SD 8.4). A repeated measures study design was used with data collected from four testing sessions on two days from two observers. Intra (within-day and between-day) and inter-observer coefficient of multiple correlations revealed moderate to excellent similarity of stance phase joint range of motion (0.621-0.975). Relative to the joint range of motion (ROM), mean differences (MD) between sessions were highest for the within-day comparison for all planar ROM at the metatarsus-midfoot articulation (sagittal plane ROM 5.2° vs. 3.9°, MD 3.1°; coronal plane ROM 3.9 vs. 3.1°, MD 2.3°; transverse plane ROM 6.8° vs. 5.16°, MD 3.5°). Consequently, data from the metatarsus-midfoot articulation in the Istituto Ortopedico Rizzoli (IOR) foot model in adults aged over 50 years needs to be considered with respect to the findings of this study.
多段式足部模型的可信度一直受到缺乏可重复性数据的限制，特别是在可能表现出独特功能性足部特征的老年人群中。本研究旨在确定 Leardini 等人[2]描述的多段式足部模型在 50 岁及以上人群中立位相运动学数据的观察者内和观察者间的可重复性。20 名健康成年人参与了研究（平均年龄 65.4 岁，标准差 8.4）。使用重复测量研究设计，在两天内的四个测试时段从两名观察者处收集数据。观察内（日内和日间）和观察者间的多重相关系数表明，站立相关节活动范围的相似性为中等至极好（0.621-0.975）。与关节活动范围（ROM）相比，所有平面 ROM 中跗跖-中足关节的日内比较的节段间差异（MD）最高（矢状面 ROM 5.2° vs. 3.9°，MD 3.1°；冠状面 ROM 3.9° vs. 3.1°，MD 2.3°；横断面 ROM 6.8° vs. 5.16°，MD 3.5°）。因此，需要考虑到这一研究结果，来解读 50 岁以上成年人的 IOR 足部模型中跗跖-中足关节的数据。
