The relationship of static foot structure to dynamic foot function
The relationship of static foot structure to dynamic foot function
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DOI：
10.1016/s0021-9290(96)00136-4
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发表时间：
1997-03-01
影响因子：
2.4
通讯作者：
Pammer, SE
中科院分区：
文献类型：
--
作者：
Cavanagh, PR;Morag, E;Pammer, SE
关于人脚的结构和功能之间的关系，已经提出了许多理论，但这些理论很少受到定量检验。在这项研究中，足部结构的特点是从标准化的侧面和背跖负重平片50名健康成人受试者的27个测量。区域足底压力分布数据收集从相同的脚被选为功能措施。采用逐步回归分析的方法，探讨步行过程中足底压力峰值的变化有哪些部分可以用X线片测量值来解释，并确定足的结构特征是足跟和第一跖骨头（MTH1）足底压力峰值的重要预测因素，大多数X线片测量值具有高度可靠性。然而，只有31%和38%的方差峰足底压力在脚跟和MTH1，分别可以解释使用多元回归分析与放射学测量作为自变量。在确定的结构预测因素中，软组织厚度（例如跟骨或籽骨高度）和足弓相关测量值是足跟和第一跖骨头下足底压力的最强预测因素。我们的结论是，在正常人中，只有约35%的动态足底压力的变化可以解释来自X光片的足部结构的测量。这意味着步态的动力学可能对步行过程中的足底压力产生主要影响。(C)1997年爱思唯尔科学有限公司
Many theories have been advanced concerning the relationship between structure and function in the human foot, yet few of these theories have been subjected to quantitative examination. In this study, foot structure was characterized by 27 measurements taken from standardized lateral and dorsi-plantar weight-bearing plain radiographs of 50 healthy adult subjects. Regional plantar pressure distribution data collected from the same feet were chosen as the functional measures. A stepwise regression analysis was performed to (1) explore what portion of the variance in peak plantar pressure during walking can be explained by the radiographic measurements, and (2) identify structural characteristics of the foot which are significant predictors of peak plantar pressure under the heel and the first metatarsal head (MTH1).Most of the radiographic measurements were highly reliable. However, only 31 and 38% of the variance in peak plantar pressure at the heel and MTH1, respectively, could be explained using multiple regression analyses with the radiographic measurements as independent variables. Among the structural predictors that were identified, soft tissue thickness (e.g. calcaneus or sesamoid heights), and arch-related measurements were the strongest predictors of plantar pressure under both the heel and the first metatarsal head. We conclude that, in normal subjects, only about 35% of the variance in dynamic plantar pressure can be explained by the measurements of foot structure derived from radiographs. This implies that the dynamics of gait are likely to exert the major influence on plantar pressure during walking. (C) 1997 Elsevier Science Ltd.