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 49 for “"Human Walking"”.
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Phase resetting of human walking
… of the neural control of unimpaired human walking. Specifically, this work studied the potential for phase resetting of human walking by analyzing results from treadmill walking experiments. Subjects walked on a treadmill while wearing a robotic device that attaches to the lower leg, …
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Models of entrainment of human walking
Stable human locomotion may be described as a non-linear limit cycle oscillator. This claim has been supported through the observation of dynamic entrainment and phase-locking to external mechanical perturbations applied at the ankle. Simple models have been developed in attempts to understand …
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Backpack Energy Harvester with Human Walking Model
… an innovative backpack energy harvester for human walking. To model human walking with backpack energy harvester, a simple dual-mass model has been developed and studied first. Dual-mass model for three types of distinct harvesters were investigated, pure damping, traditional rack pinion …
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The regulation of angular momentum during human walking
… angular momentum provides an elegant model for human walking and might be used to generate stable robotic locomotion if employed by a control algorithm. To examine the extent to which the body regulates angular momentum, a force model was developed to predict horizontal ground reaction forces …
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A model of muscle-tendon function in human walking
… the design of legged machines that walk as humans do, this thesis investigates how leg muscles and tendons work mechanically during level-ground human walking at self-selected speeds. I hypothesize that quasi- passive, series-elastic clutch units spanning the knee joint in a musculoskeletal …
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Tracking and Analysis of Ecological Human Walking With Wearable Sensors
… setting might not fully represent real-life walking. Walking under constrained conditions, such as fixed speed or distance, can alter a person's gait. Humans often walk relatively short bouts that lack a steady speed, and longer bouts of varying movement vigor, meaning speed depends on the …
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EMG-Informed Estimation of Human Walking Dynamics for Assistive Robots
… of the ankle joint during a range of different walking conditions. As such, a set of experiments was designed to collect motionrelated data from 10 individuals during a wide range of activities. Initially, an artificial neural network was designed to predict ankle moment during constant speed …
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Autonomous powered exoskeleton to improve the efficiency of human walking
… that reduce the metabolic energy consumed when humans walk and run, but such technologies have traditionally remained unachievable. In this thesis, I present the Augmentation Factor, a simple model that predicts the metabolic impact of lower limb exoskeletons during walking. The Augmentation …
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A computational framework to study neural-structural interactions in human walking
… crucial insight into (a) motor control and (b) human leg morphology. Physiological facts indicate that muscle actuator state (activation, length and velocity) is key to this neural-structural interplay. Here we present a novel model-based framework to resolve individual muscle state and describe …
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Looking for a Simplicity Principle in the Perception of Human Walking Motion
… study we apply coding theory to marker-based human walking motion. We compare two representation schemes. The first is based on marker coordinates in a body-centred Cartesian coordinate system. The second is based on a model of 15 rigid body segments with Euler angles and a Cartesian …
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Human walking adaptations to distant limb mass disturbances : investigating biomimetic performance objectives
… planning is required in the control of humanoid robots, advanced prostheses, and impaired human limbs via functional neuromuscular stimulation . Optimization problems that involve complex, high degree of freedom simulations of the musculoskeletal system require extensive computational …
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Statistical analysis of the vertical human walking forces and human structural interaction effects
… are susceptible to excessive vibrations due to human activities, for example, walking, which is the most frequent human activity. Due to the slender design, modern structures provide a greater likelihood to have low natural frequencies. Low natural frequencies can result in resonant walking …
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Studies on gait control using a portable pneumatically powered ankle-foot orthosis (PPAFO) during human walking
Made available in DSpace on 2016-07-07T20:26:50Z (GMT). No. of bitstreams: 4 ISLAM-DISSERTATION-2016.pdf: 2986591 bytes, checksum: b3e0c01386cedef04324fd7c5c8364ac (MD5) MI_Dissertation_v10.docx: 31867526 bytes, checksum: 1732a101227727851c94d28e1c9729f3 (MD5) LICENSE.txt: 4211 bytes, checksum: …
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A comparison of human walking using a conventional gait laboratory and the Motek Medical Computer Assisted Rehabilitation Environment (CAREN)
… this study was to investigate the variation of human gait biomechanics during different walking conditions, with and without optic flow. The secondary aim was to investigate the accuracy of the two motion-analysis systems used. Following ethical approval of this investigation, testing was …
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Human readaptation to normal gravity following short-term simulated Martian gravity exposure and the effectiveness of countermeasures
… This thesis investigates the modifications in human walking gait following exposure to simulated Martian gravity by examining the ground reaction force, muscle electromyogram, and joint kinematics of the lower body extremities. The "Moonwalker II" simulator, designed and developed with features …
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Modifying the MIT Sensorimotor Control Lab model of human balance and gait control for the addition of running
… by Sungho Jo and Steve G. Massaquoi on modeling human walking and upright balance. The model of human neurological control of balance and gait generation put forward by Jo and Massaquoi in "A model ofcerebrocerebello-spoinomuscular interaction in the sagittal control of human walking" and …
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Control and hardware design for a bipedal robot via planar modeling with empirical perception studies leveraging embodied movement analysis
Humans can walk across a range of surfaces without falling and can also communicate internal state to other humans through variable gait styles. That is why, developing bipedal robots is of interest for applications in human-facing settings. For the purpose of designing an expressive bipedal robot, …
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Inverse optimization of discrete-time systems applied to human locomotion
… our approach to find a model of goal-directed human walking from experimental data with human subjects.
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Movement theory inspired robot motion strategies and design of a bipedal walker
… state machines, motivated by choreographed human movements, where states define poses at particular instants. Here, tools from formal theory help in producing high-level movement behaviors by conditioning transitions between these states. Secondly, high-level movements are investigated by …
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Dynamic Analysis of Musculoskeletal System Performances during Human Standing and Walking
… the musculoskeletal system performance during human standing and walking, which can lead to a better understanding of the musculoskeletal functions in standing balance and locomotion, and hence to improve clinical diagnosis, treatments and also rehabilitation interventions.<br/><br/>Firstly, an …
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