Advisor Information
Sara Myers
Location
Dr. C.C. and Mabel L. Criss Library
Presentation Type
Poster
Start Date
3-3-2017 9:00 AM
End Date
3-3-2017 10:15 AM
Abstract
Peripheral artery disease (PAD) is a cardiovascular disease that results from blockage of one or more arteries in the lower extremity. Often, patients with PAD have reduced ability to push off with the foot at the end of the gait cycle. When walking, the ankle contributes the majority of the power to propel the body into the next step. An ankle-foot orthosis (AFO) is a device that aids in ankle propulsion by increasing the energy return, thus decreasing the ankle deficit in pathological individuals. The purpose is to investigate the effect of walking speed on ankle propulsion during walking. Subjects completed five conditions, each with four trials. The five walking conditions included subjects walking at a self-selected speed, then walking at speeds that were ±10% and ±20% than the self-selected speed. Variables calculated were moment and power of the ankle during each trial, all four trials were averaged for each condition. After running the ANOVA, there were two significant effects between conditions in the for ankle plantarflexor power. Significant differences were between self-selected speed and +20% pace (p
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The Effects of Walking Speed on Gait Propulsion When Wearing an Ankle-Foot Orthosis
Dr. C.C. and Mabel L. Criss Library
Peripheral artery disease (PAD) is a cardiovascular disease that results from blockage of one or more arteries in the lower extremity. Often, patients with PAD have reduced ability to push off with the foot at the end of the gait cycle. When walking, the ankle contributes the majority of the power to propel the body into the next step. An ankle-foot orthosis (AFO) is a device that aids in ankle propulsion by increasing the energy return, thus decreasing the ankle deficit in pathological individuals. The purpose is to investigate the effect of walking speed on ankle propulsion during walking. Subjects completed five conditions, each with four trials. The five walking conditions included subjects walking at a self-selected speed, then walking at speeds that were ±10% and ±20% than the self-selected speed. Variables calculated were moment and power of the ankle during each trial, all four trials were averaged for each condition. After running the ANOVA, there were two significant effects between conditions in the for ankle plantarflexor power. Significant differences were between self-selected speed and +20% pace (p