Examinations of plantar mechanical stress during barefoot walking in patient with diabetes mellitus: Focus on mediolateral and anteroporterior component of ground reaction force

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  • 裸足歩行時に糖尿病患者の足底に作用する力学的負荷量の検討―内外側成分・前後成分に着目して―
  • ハダシ ホコウジ ニ トウニョウビョウ カンジャ ノ アシゾコ ニ サヨウ スル リキガクテキ フカリョウ ノ ケントウ : ウチソトガワ セイブン ・ ゼンゴ セイブン ニ チャクモク シテ

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Abstract

Cutaneous micro damage and callosities are caused from mediolateral and anteroposterior component of ground reaction force (GRF) during walking. Patients who have plantar callus have a high risk for an outbreak of diabetic foot ulcers. However, the character of mediolateral and anteroposterior component of GRF is not clear. In this study, participants were six diabetics with plantar callosities (DMC group), seven diabetics with no callosities (DM group), and seven healthy individuals (CON group). The GRF (, which includes mediolateral, anteroposterior, and vertical component) was measured during barefoot walking, at a pace comfortable for participants, on a force plate embedded in a laboratory walkway. Consequently, difference between minimum and maximum (“Peak-to-Peak”) of the wave pattern of mediolateral component of GRF in 1 walk period is significantly larger in the DMC group than in the DM and CON groups (72.9N vs 57.3N and 39.9N, p<0.05). This study suggested that diabetic patients with plantar calluses are exposed greater mechanical stress of mediolateral component of GRF even if they don’t have neuropathy.

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