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 11 of 11 for “"quiet stance"”.
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The Effect of Optic Flow During Attention Related Tasks and Quiet Stance
… Increasing visual information during upright stance leads to tighter regulation of upright stance. Cognitive related tasks and postural control share capacities and compete for cognitive resources which may cause interference on one or both tasks. There is limited work on the impact of visual …
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Changes in Balance with Brain Inflammation: Sensitivity in Dual Motor Mechanisms
… center of pressure (COP) dynamics during quiet stance tasks for assessing balance impairments in athletes recovering from concussion. Concussed athletes often experience impaired motor function and cognitive deficits, increasing the risk of orthopedic injury. Traditional balance …
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Evaluation of Linear and Nonlinear Postural Stability Measurements Following Concussion
… To evaluate a unipedal and bipedal quiet stance protocol consisting of linear and nonlinear CoP measurements with varying durations in a concussed population throughout recovery. <strong>Methods: </strong>Thirteen NCAA Division I Collegiate Football players (age: 20.1 ± 1.6 years, …
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Effects of Manipulating Optic Flow Gain on Dynamic Postural Control During Continuous Support Surface Translations
… and somatosensory systems to maintain upright stance. Quiet stance assesses posture when participants are standing still, and dynamic postural control has been assessed through use of moveable support surfaces. Limited work utilizes VR-induced optic flow with continuous platform translations to …
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Paraplegic standing and reciprocal gait using a floor reaction hybrid F.E.S. orthosis
… walking systems is rapid muscle fatigue. During quiet stance, chronic stimulation of support muscles is required which induces fatigue and significantly reduces their useful contraction time. Mechanical bracing provides safety, strength and protection of delicate joints but it lacks some of the …
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Rehabilitation Engineering in Parkinson's disease
… prior to step initiation depend on initial stance width. We found that patients with PD did not scale up the size of their APA with stance width as much as control subjects so they had much more difficulty initiating a step from a wide stance than from a narrow stance. This results supports …
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Use of Statistical Mechanics Methods to Assess the Effects of Localized muscle fatigue on Stability during Upright Stance
… dataset was employed, in which sway during quiet stance was measured under different visual and surface compliance conditions, among both genders and different age groups, as well as before and after induction of localized muscle fatigue at the ankle, knee, torso, and shoulder. The …
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Visual-Oculomotor and Head Movement Strategies in Postural Control
… head position and COM was compared during quiet stance to determine if movement of the head could serve as a direct proxy for COM. Investigation of this relationship was grounded in the premise that if the inverted pendulum model of COM were to be extended to include the head, then movement …
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Quantifying Human Balance Performance and Control to Inform Therapy
… to develop and validate methods that quantify quiet balance ability and control in unimpaired and impaired human participants. The first part focuses on assessing balance ability, the capacity to maintain upright posture during quiet stance that is currently often quantified by measures of body …
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Experimental and simulation-based assessment of the human postural response to sagittal plane perturbations with localized muscle fatigue and aging
… and center of pressure (COP)-based measures of quiet stance. This is important because these increases have been linked to elevated risk of falls, and workers in the construction industry frequently engage in fatiguing activities while working at heights. In addition, the rate of fatality due to …
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Quantification of the human postural control system to perturbations
… To assess the human PCS, postural sway during quiet standing or in response to external perturbation have frequently been examined descriptively. Minimal work has been done to understand and quantify the robustness of the PCS to perturbations. Further, there have been some previous attempts to …