THE EFFECTS OF SOLE DESIGN AND COMPOSITION UPON THE LENGTH OF THE FOOTPRINT LEFT DURING WALKING
SPRINGFIELD COLL MASS
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The effects were investigated of sole design and composition upon the length of footprints that are formed during walking. Since it was logical to assume that longer step might be the result of a momentary elongation of the outsole during walking, it was decided to measure the length of footprints made by various types of outsoles in standing and walking. Significant differences were obtained with ripple and Tru-glide outsoles. The footprints were longer than the outsoles. The mechanism responsible for this increase in length probably depends on a forward glide of the shoe as the weight of the body is shifted over the compressible ripples. The greater increase observed in walking can no doubt be attributed to the additional force placed upon the ripples by the forward motion of walking.