Abstract
The literature shows a correlation between degenerative joint disease and the ability of the musculoskeletal system to absorb shock. The purpose of the research described here was to determine the effect of shock-absorbing materials on the forces developed between the heel and shoe (or insole) during normal walking on a treadmill. A measurement transducer consisting of an array of lead zirconate titanate transducers embedded in a thin silicone rubber pad was used. Data is collected serially from each ceramic transducer, beginning at heelstrike, and logged on a desktop computer for later analysis. Materials being evaluated include sorbothane, plastazote and ordinary foam heel cups.
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