The Effect of Shoe Sole Composition on In Vivo Tibial Strains During Walking

To test the hypothesis that shoe sole composition can affect the level of bone strain and strain rates that contribute to the development of stress fractures, in vivo tibial strain measurements were made during treadmill walking while wearing four shoes which differed only in their sole composition....

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Bibliographic Details
Published in:Foot & ankle international 2001-07, Vol.22 (7), p.598-602
Main Authors: Milgrom, Charles, Finestone, Aharon, Ekenman, Ingrid, Simkin, Ariel, Nyska, Meir
Format: Article
Language:English
Subjects:
Adult
Biomechanical Phenomena
Equipment Design
Fractures, Stress - prevention & control
Humans
Male
Middle Aged
Polyurethanes
Shoes
Tibia - physiology
Walking - physiology
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Summary:To test the hypothesis that shoe sole composition can affect the level of bone strain and strain rates that contribute to the development of stress fractures, in vivo tibial strain measurements were made during treadmill walking while wearing four shoes which differed only in their sole composition. Soles of 65 Shore A polyurethane with an embedded heel air cell had significantly lower compression and shear strains and shear strain rates than soles of 65, 75 and a composite of 40/65 Shore A polyurethane with no embedded air cells. A sole composed of 65 Shore A polyurethane with an embedded air cell can potentially be protective against stress fracture in a walking shoe.
ISSN:1071-1007
1944-7876
DOI:10.1177/107110070102200713