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64
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What Determines the Vertical Displacement of the Body During Normal Walking?
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Steven A. Gard, PhD
Dudley S. Childress, PhD
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Conventional wisdom states that the vertical excursion of the body is reduced by several of six "determinants" of gait to minimize the energy expenditure of walking. However, we have shown that pelvic obliquity and stance-phase knee flexion--the seco...
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70
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Energy Loss and Stiffness Properties of Dynamic Elastic Response Prosthetic Feet
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Mark D. Geil, PhD
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Dynamic elastic response prosthetic feet are designed to store and return energy during the gait cycle to assist the amputee with limb advancement. In so doing, the structural ability of the feet to store and return energy is significant, as is foot ...
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74
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Development of a Testing Apparatus for Structural Stiffness Evaluation of Ankle-Foot Orthoses
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Adrian A. Polliack, PhD
Christopher Swanson, MSBME
Samuel E. Landsberger, ScD
Donald R. McNeal, PhD
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Quantitative analysis of ankle-foot orthosis (AFO) stiffness and impact-loading response could assist the orthotic industry and orthotists in fabricating and prescribing the most appropriate AFO design. Previous investigators have studied the flexibi...
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83
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Necrotizing Fasciitis: An Overview
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David Speers, CO
Donald Shurr, CPO, PT
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For numerous reasons, the number of cases of necrotizing fasciitis is increasing. Several bacteria can be responsible for the destruction of subcutaneous tissue and fat, including group A streptococcus. Immunosuppressed individuals, diabetics, males,...
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