Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 80 for “"gait cycle"”.
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Finite element analysis of total knee replacement considering gait cycle load and malalignment
This research has investigated the influence of gait cycle, malalignment and overweight on total knee replacements using a finite element method. Dynamic and finite element models of fixed- and mobile-bearing implants have been created and solved; the fixed- and mobile-bearing implants demonstrated …
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A machine learning approach to gait cycle classification for Rheo 3 low-end torque failure
… by the wearer. Using a data set comprising of gait cycles, this research explored and compared two distinct classification algorithms: numerical feature extraction combined with various traditional machine learning algorithms and Continuous Wavelet Transform combined with a Convolutional Neural …
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Analysis Techniques for Identifying Light Touch in Human Gait
Falls that occur during the human gait cycle are the cause of numerous injuries among the elderly and those suffering from neuropathy. These falls can arise from postural sway and instability in the gait cycle, and therefore, understanding variability and stability differences in gait is of high …
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Biomechanical changes to human locomotion due to asymmetric loading of the legs
… loading. The present report identified various gait cycle parameters that changed as a response to the asymmetric loading. Notably, significant differences in the stride time of the legs occurred under loading, while contralateral stride times also adjusted to remain equal to those of the loaded …
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Hip function characterization in the sagittal plane with varying gait speed
… subjects who walked at slow, normal and fast gait speeds. The hip can be modeled with a torque actuator and two independent, linear torsional springs, which are activated at different times during the stance phase of gait. The activation times consistently identify gait cycle events across all …
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The role of load-regulating mechanisms In gaze stabilization during locomotion
… decreased hip, ankle, and knee angles during the gait cycle. Until now, no studies have investigated how gaze control systems respond to adaptive modification in the body load sensing system. The goal of this research is to determine the role of body load-regulating mechanisms in gaze control …
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Examining cranial cruciate ligament deficiency and its effect on canine gait using Parafac2
Gait analyses are typically concerned with comparing subjects’ waveform patterns for clinical or experimental reasons; two-mode data matrices (e.g., subjects × gait percents) are commonly analyzed by principal component analysis (PCA). Typical gait data, however, are measured in more than two modes …
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Development and clinical bench testing of a Matlab based, user friendly, deployable software application for automatic batch processing of fully instrumented three-dimensional human movement biomechanics data
Gait analysis is the systematic study of human movement. It is used in the assessment and treatment of a variety of medical conditions where normal movement is impaired. The current gold standard method is fully instrumented three-dimensional gait analysis. This uses spatial information from motion …
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Joint motion studies of the normal and cranial cruciate ligament deficient stifle in large breed dogs
… bone plates without severely impairing the dog's gait. Motion data was presented in terms of a clinical coordinate system which included flexion, abduction, external rotation, lateral, cranial and distraction displacements. The kinematic data was highly reproducible for a given dog. For normal …
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Characterising intra- and inter-limb gait stability using minimum foot clearance
… effects by characterising one parameter of the gait cycle from treadmill walking. The minimum foot clearance (MFC) during the swing phase of gait is an essential event that reveals two things: 1) how the locomotor system achieves control over many degrees of freedom when performing this spatial …
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Recovering elastic energy in a single-legged hopping robot
… for the importance of compliance in an animal gait is Ek/Ein, the ratio of the systems peak kinetic energy to the energy input into it over one gait cycle. In this project, I create an analytical model of a hopping robot and a corresponding physical prototype that will serve as an experimental …
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Replacement of an active metatarsophalangeal joint with a passive spring-damper system for implementation in an ankle prosthesis
… energy and release it during the part of the gait cycle where the highest torque is required, reducing the torque the motor must exert. A linear spring-damper system adapted for use on a rotational joint was found to exhibit similar behavior to the biological joint for the range of motion …
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A sensor system to detect events in gait for the correction of abnormalities in neurological patients
… stimulation, could improve the abnormal gait in neurological patients. The stimulation timing which follows the normal muscle activity is impractical to achieve using the traditional sensor (the footswitch). This study focuses on the development of a new sensor system for the detection of …
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The Effect of Knee Osteoarthritis on the Variability and Fractal Dynamics of Human Gait
… adult population, and has a greater influence on gait compared to the effects of aging alone. Spatiotemporal parameters can be used to quantify age-related changes in gait, however gait variability (i.e., the magnitude of stride-to-stride fluctuations with respect to time) and the fractal-scaling …
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Design and Development of a Lower Limb Rehabilitation Device for Spinal Cord Injury Patients
… movement device has been designed to mimic the gait cycle that a patient is attempting to recover. The device was intended towards providing a ground reaction force simulation at the correct points of the gait cycle. The device was tested in-silico with validated skeletal models to determine …
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The effect of visual environmental distraction on gait performance in children
… to identify the effect of visual distraction on gait parameters in children, describe the role of walking experience in the management of a visual distraction while walking, and explore the relationship between performance in standardized testing and management of visual distraction while …
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Rhythmic cueing effects on gait parameters of children with spastic diplegic cerebral palsy: an immediate entrainment study
… cerebral palsy can synchronize (entrain) their gait patterns with an external auditory rhythmic stimulus, and whether this rhythmic stimulus would encourage improvement in stride symmetry and knee extension at foot contact during the gait cycle. Five participants completed an immediate …
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The effect of prophylactic knee braces on running gait
… Digital analysis of each subject's running gait with and without the use of knee braces was performed. The knee, ankle and hip joints of both legs were studied to determine if differences existed in the ranges of motion, velocities, and duration of the gait cycle as a result of wearing a …
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Angular momentum in turns and abrupt starts : strategies for bipedal balance control
… as an impulse destabilizing an otherwise normal gait cycle. Turns and accelerated starts are all common transients encountered and managed intelligently by humans everyday. The population of elderly has increased and understanding balance control in healthy subjects will be more important. In …
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