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MEDICINA E CHIRURGIA DELLA CAVIGLIA E DEL PIEDE

A Journal on Physiopathology and Surgery of the Foot


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Chirurgia Del Piede 2002 June;26(2):105-8

language: English

Ground reaction force analysis in athlete with plantar fasciitis. A case report

Pomara F., Gravante G., Russo G., Riolo M., Amato C., Amato G.


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We analysed the plantar support of a male runner affected by bilateral plantar fasciitis during stance and walking by a force platform: the orthostatic analysis without shoes was normal, whereas the orthostatic analysis with his new running shoes showed an overload on the medial portions of plantar imprints, with the peak of maximum pressure localised in the right middle foot. In static test, the percentage load on the forefeet was 47% without shoes, 53% with shoes. The position of the centre of pressure (COP) in the polygon of support was measured with the B segment, uniting orthogonally the COP with the tangent line to the posterior edge of the rear feet. In orthostatic analysis without shoes the B segment was 100 mm, in the orthostatic analysis with shoes the B segment was 103 mm. In dynamic analysis, the use of sport shoes induced a reduction of time of contact of the feet on the ground, anticipating the load on both the plantar imprints. The data confirm that plantar fasciitis can be also induced by inadequate sport shoes, inducing an improper load on the plantar support; moreover the study confirms the diagnostic value of the force platform and suggests its use with a preventive role.

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