Abstract
Gait characteristic affected by the foot–ground interface like various gradients, surfaces and different heel heights has been reported. The aim of this study was to examine the effect of changes in heel height and incline slope on plantar pressure distribution of the foot during treadmill walking. Plantar pressure parameters were measured with the PEDAR insole system in 18 undergraduate students at a fixed speed of 3.6 km/h and a gradually varied slope of 0°, 3.5° and 7° with two different shoe conditions: flat-heeled shoes (0.8 cm) and high-heeled shoes (6.6 cm). Compared with the flat-heeled shoes, a higher loading in medial forefoot and a lower loading in medial heel were found in high-heeled shoes in all slope conditions. When the slope increases, the variation amplitude reduces continuously. This, perhaps, causes a sudden reduction in the eversion angle of the foot while walking uphill in high-heeled shoes, and this may increase an individual’s risk of lateral ankle sprain.
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