Global ETD Search
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Showing 1 to 8 of 8 for “"transtibial amputee"”.
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Human Knee FEA Model for Transtibial Amputee Tibial Cartilage Pressure in Gait and Cycling
… higher for persons who have suffered a transtibial amputation. Abnormal cartilage stress can cause higher OA risk, however it is unknown if there is a connection between exercise type and cartilage stress. To help answer this, a tibiofemoral FEA model was created. Utilizing linear …
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COMPENSATORY HIP AND KNEE MECHANICS IN TRANSTIBIAL AMPUTEES DURING STAIR DESCENT AND DIRECTIONAL TASK
… compared lower limb mechanics in unilateral transtibial amputees and able bodied controls during strenuous activities of daily living (ADL). Seven unilateral transtibial amputee and five matched-abled bodied control participants executed stair descent on a four-step rehabilitation staircase …
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Estimation of ground reaction force and zero moment point on a powered ankle-foot prosthesis
… causes many problems for lower extremity amputees, such as a lack of adequate balance control during standing and walking. The ground reaction force (GRF) and the zero moment point (ZMP) are known to be basic parameters in bipedal balance control. This thesis focuses on the estimation of …
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Biomechanics and quality of life in transtibial amputees during and following rehabilitation : a longitudinal study
Following surgery, amputees must re-learn how to perform various movement tasks using altered lower limb mechanics. In order to optimise the process of re-learning these tasks and inform rehabilitation practice, an understanding of the longitudinal adaptations that occur both during and following a …
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Exploring the role of damping in a passive prosthetic knee through modeling, design, and testing
… a knee moment for an able-bodied subject and transtibial amputee wearing a fully characterized prosthetic foot. Dampers with a stacked fin architecture, where a highly viscous fluid is sheared between neighboring disks, were built with a range of damping coefficients from 0.37 to 1.80 …
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Advanced prototyping of variable impedance prosthetic sockets for trans-tibial amputees : polyjet matrix 3D printing of comfortable prosthetic sockets using digital anatomical data
… Impedance Prosthetic (VIPr) socket for a transtibial amputee using computer-aided design and manufacturing (CAD/CAM). Compliant features are seamlessly integrated into a 3D printed socket to achieve lower interface peak pressures over bony protuberances by using anthropomorphic data …
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Development and evaluation of biarticular transtibial prostheses for level-ground amputee walking
… strides have been made toward the development of transtibial prostheses that match the functionality of their corresponding biological structures. However, these devices are fundamentally limited because they only emulate the biological ankle-foot complex. In contrast, the gastrocnemius calf …
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Hip and Knee Biomechanics for Transtibial Amputees in Gait, Cycling, and Elliptical Training
<p>Transtibial amputees are at increased risk of contralateral hip and knee joint osteoarthritis, likely due to abnormal biomechanics. Biomechanical challenges exist for transtibial amputees in gait and cycling; particularly, asymmetry in ground/pedal reaction forces and joint kinetics is well …