الملخص
يتسبب المشي في حدوث الصدمات للاقدام البشرية وعليه ستتولد قوى متسارعة وذات قيم عالية نتيجة لتكرار هذا التصادم والتي يتركز تاثيرها بالدرجة الاساس على الكاحل .ان تغيير الزخم بين الكتلة المكافئة للطرف لدى ارتطامه بالارض سيولد اقصى قيم للتصادم وكذلك الحال عند توقف اجزاءه المتحركة عن الحركة .ينتج الزخم على القدم من جراء تاثير تبادل الزخم بين مكونات الطرف ومن جساءة او مرونة كعب الحذاء .يقدم البحث الحالي تقييم لافضل تصميم للحذاء المستخدم من قبل مبتوري تحت الركبة.لقد تم اجراء الاختبارات العملية على شخص بالغ من ذوي بتور تحت الركبة للطرف السفلي .حيث تم عمل اختبار المشي لخمسة عشر تصميم مختلف للاحذية اعتمادا على برنامج Minitab باستخدام تقنية تحليل الاستجابة السطحية RSM تم جمع البيانات الحركية والديناميكية من خلال استخدام فحوصات وسادة القوة والتصوير الفديوي .تم ادخال البيانات واجراء عملية اختيار التصميم الامثل باستخدام طريقة تصميم التجارب DOE من خلال برنامج Minitab حيث تم اختبار عدة نماذج لكعوب تختلف في خواص المواد والشكل الهندسي لاكتشاف النموذج الذي يحقق ادنى تاثير للصدم .بينت الاختبارات الاحصائية وخصوصا تحليل ANOVA بان ارتفاع او سمك الكعب له التاثير الاكبر بالمقارنة مع تاثير كل من معامل المرونة ومساحة المقطع .واستنادا الى تحليل تصميم الاستجابة السطحية فان تصميم كعب من مادة ذات مرونة 0.5864 N/mm2 وارتفاع 0.50 cm ومساحة60.0 cm2 ممكن ان يحقق اقل كتلة مكافئة للصدم مما يحسن كثيرا من المشية بينما بين تحليل انوفا ان السمك له التأثير الاكبر على جساءة الحذاء .المراجع
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