Estudio baropodométrico de los valores de presión plantar en pies no patológicos

Abstract

Background This study aimed to evaluate normal plantar pressures in healthy subjects using an electronic baropodometry. Material and methods Forty-six healthy subjects, with no clear foot or lower limb diseases, were analyzed with the Biofoot ® (IBV, Valencia, Spain) in-shoe system. The Biofoot system uses insoles with 64 piezoelectric sensors. Heel, midfoot and forefoot pressures were measured in 6 second recordings for each subjects. Maximum pressure peak and mean pressure was calculated and analyzed. Results Mean contact time was 0.81 (standard deviation [SD] 0.08) seconds in the right foot and 0.82 (SD 0.09) seconds in the left foot. Walking cadency was 105.6 (SD 8.4) steps per minute. Maximum peak and mean pressure in the heel was 750 and 253 kPa, respectively. In the midfoot, peak pressure was 400 kPa and mean pressure 65 kPa. The values found in the forefoot was 1,240 kPa for pressure peak and 220 kPa for mean pressure. Discussion The highest pressure peaks were found in the forefoot, followed by the heel and finally in the midfoot. In relationship to mean pressure, percentage of heel support is 46.4 %, that of the midfoot 12 % and forefoot 41.6 %. No correlation was found between cadence and pressure values with the number of patients analyzed in this study, however, there was a significant and positive correlation of weight with the pressure values in all the regions.