Evaluación de la presión plantar en cinta rodante y suelo durante la marcha

Abstract

The functional evaluation of plantar pressure is performed on the treadmill and on the ground. However, the differences in plantar pressure values between the treadmill versus normal walking on the ground have not been totally clarified. The aim of this study was to detect possible differences on plantar pressure induced by the treadmill with three different walking speeds (slow, mid and high). Twenty-five healthy subjects participated in the study. Biofoot/IBV insoles were used to record plantar pressure on a standard sport shoe. The treadmill used was a BH fitness model, ColumbiaPro with 1600W power and the ground used was 12m long and 2m wide. After confirming the data normality by the Kolmogorov-Smirnov test and homoscedasticity by the Levene test, a two-factor analysis of variance (ANOVA) (kind of surface and velocity) and repeated measures was performed. Significance level was established at 95% ( P≤.05). The most important results showed difference ( P < .05) in treadmill vs. ground, fundamentally in the heel and outer arch. Significant differences were also observed based on speed. In conclusion, treadmill induces modifications on the plantar pressures respect the normal way of walking on the ground. These differences must be taking into account in the clinical evaluation and in the design for good insoles and/or plantar orthotics.