Hughes J, Clark P, Linge K, Klenerman L
Section of Molecular Rheumatology, Northwick Park Hospital, Harrow, United Kingdom.
Foot Ankle. 1993 Nov-Dec;14(9):514-9. doi: 10.1177/107110079301400905.
There is growing interest in the use of foot pressure measurement both clinically and in the study of normal subjects. A number of systems are now commercially available, but comparison of the results is complicated by the different techniques employed. This paper compares the results of two studies. The first examined a large group of normal subjects using the dynamic pedobarograph. The second was identical to the first except that the EMED F system was used. The second study was carried out in order to verify existing results and to assess the clinical significance of the expected differences. Comparison of the results from the two studies showed that the median peak pressures demonstrated similar patterns with the highest pressure in the forefoot under the second/third metatarsal heads and the toes taking gradually reduced pressure from the first to the fifth toe. The EMED F showed higher peak pressures than the dynamic pedobarograph under the heel, the medial four metatarsal heads, and the great toe and showed lower peak pressures and shorter contact times under the lateral four toes. The pattern of loading across the metatarsal heads was further analyzed using an objective method of splitting the subjects into groups. Four groups were isolated from both sets of results, and this has confirmed that only a proportion of normal subjects demonstrate highest loading under the first metatarsal head whereas the remainder show highest loading centrally within the forefoot.
临床上以及在对正常受试者的研究中，对足部压力测量的应用兴趣与日俱增。现在有许多系统可供商业使用，但由于采用的技术不同，结果的比较变得复杂。本文比较了两项研究的结果。第一项研究使用动态足底压力仪对一大组正常受试者进行了检查。第二项研究与第一项相同，只是使用了EMED F系统。进行第二项研究是为了验证现有结果，并评估预期差异的临床意义。两项研究结果的比较表明，中位峰值压力呈现出相似的模式，第二/第三跖骨头下方的前足压力最高，从第一趾到第五趾压力逐渐降低。EMED F系统在足跟、内侧四个跖骨头和拇趾下方显示出比动态足底压力仪更高的峰值压力，而在外侧四个脚趾下方显示出更低的峰值压力和更短的接触时间。使用一种客观的方法将受试者分成几组，进一步分析了跖骨头的负荷模式。从两组结果中分离出四组，这证实只有一部分正常受试者在第一跖骨头下方显示出最高负荷，而其余受试者在前足中部显示出最高负荷。
