Arnold John B, Causby Ryan, Pod Grad Dip, Jones Sara
School of Health Sciences, University of South Australia, Adelaide, South Australia.
Diabet Foot Ankle. 2010;1. doi: 10.3402/dfa.v1i0.5518. Epub 2010 Nov 9.
The implication of high peak plantar pressure on foot pathology in individuals both with and without diabetes has been recognized. The aim of this study was to investigate and clarify the relationship between increasing body mass and peak and mean plantar pressure in an asymptomatic adult population during walking.
Thirty adults without any relevant medical history, structural foot deformities or foot posture assessed as highly pronated or supinated, and within a normal body mass index range were included in the study. An experimental, same subjects, repeated measures design was used. Peak and mean plantar pressure were evaluated with the F-Scan in-shoe plantar pressure measurement system under four different loading conditions (0, 5, 10, and 15 kg) simulated with a weighted vest. Pressure data were gathered from three stances utilizing the mid-gait protocol.
There were statistically significant increases in peak pressure between the 10 and 15 kg load conditions compared to the control (0 kg) within the heel and second to fifth metatarsal regions. The first metatarsal and hallux regions only displayed statistically significant increases in peak pressure between 15 kg and the control (0 kg). The midfoot and lesser digits regions did not display any statistically significant differences in peak pressure between any load conditions compared to the control (0 kg). The second to fifth metatarsal region displayed statistically significant increases in mean pressure in the 5, 10 and 15 kg groups compared to the control (0 kg). A statistically significant increase in peak pressure between the 15 kg and control (0 kg) group was evident in all other regions.
The relationship between increasing body mass and peak and mean plantar pressure was dependent upon the plantar region. This study provides more detail outlining the response of peak and mean pressure to different loading conditions than previously reported in the literature. Further research including measurement of temporal parameters is warranted.
高峰足底压力对糖尿病患者和非糖尿病患者足部病理状况的影响已得到认可。本研究的目的是调查并阐明无症状成年人群在行走过程中体重增加与高峰和平均足底压力之间的关系。
本研究纳入了30名无任何相关病史、足部结构畸形或足部姿势被评估为高弓足或扁平足且体重指数在正常范围内的成年人。采用实验性、同组受试者、重复测量设计。使用F-Scan鞋内足底压力测量系统，在通过加权背心模拟的四种不同负荷条件（0、5、10和15千克）下评估高峰和平均足底压力。利用步态中期协议从三种站立姿势收集压力数据。
与对照组（0千克）相比，在足跟以及第二至第五跖骨区域，10千克和15千克负荷条件下的高峰压力有统计学显著增加。第一跖骨和拇趾区域仅在15千克与对照组（0千克）之间的高峰压力有统计学显著增加。与对照组（0千克）相比，中足和小趾区域在任何负荷条件下的高峰压力均无统计学显著差异。与对照组（0千克）相比，第二至第五跖骨区域在5千克、10千克和15千克组中的平均压力有统计学显著增加。在所有其他区域，15千克组与对照组（0千克）之间的高峰压力有统计学显著增加。
体重增加与高峰和平均足底压力之间的关系取决于足底区域。本研究比以往文献报道更详细地概述了高峰和平均压力对不同负荷条件的反应。有必要进行包括时间参数测量在内的进一步研究。
