Relative movement of the navicular bone during normal walking

The purpose of this study was to determine the pattern and magnitude of nav icular bone (NB) movement during walking as well as the relationship betwee n dynamic NE and rearfoot movement. The angle of rearfoot and displacement of the NE was recorded in 106 subjects using the 6D Research electromagneti c tracking system. The relative change in the height of the NE between foot flat and heel-off was 7.9 mm. The NE seems to undergo significant vertical as well as medial displacement during the stance phase of normal walking. This motion is also correlated with rearfoot motion during walking.