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 51 for “"orthostatic"”.
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Serial Orthostatic Parameter Measurements in the Elderly
The purpose of this study was to examine orthostatic parameter measurement trends among the elderly. The study investigated the trends in blood pressure, heart rate, and oxygen saturation after orthostatic changes in elderly men and women. A prospective descriptive design was used to obtain …
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Multimodal rehabilitation for postural orthostatic tachycardia syndrome (POTS)
… and medical history and assessment for baseline orthostatic intolerance. At pre-training, post-training, and follow-up testing participants completed the Modified Fatigue Impact Scale, Lower Extremity Functional Scale, Rand 36-Item Health Survey 1.0, Trail Making Test (A and B), Center for …
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Computational models of cardiovascular response to orthostatic stress
… experimental effort, the mechanisms underlying orthostatic intolerance (OI) following spaceflight remain elusive. The number of hypotheses still under consideration and the lack of a single unifying theory of the pathophysiology of spaceflight-induced OI testify to the difficulty of the problem. …
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The Cardiovascular Effects of Resistance Exercise Training on Orthostatic Intolerance in Elderly Individuals.
… a common clinical condition known as orthostatic intolerance. There are little data on the effects of strength training in healthy adults and orthostatic intolerance, and only one study on strength training and elderly adults diagnosed with orthostatic intolerance. Therefore, the …
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Parent-Child Dyadic Experiences Living with Postural Orthostatic Tachycardia Syndrome (POTS) during Emerging Adulthood
… of living with a chronic illness called Postural Orthostatic Tachycardia Syndrome (POTS) during emerging adulthood. Seven dyads of parents and their emerging adult children with POTS were interviewed. Data analysis of in-depth interviews using Moustakas's (1994) transcendental phenomenology …
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ALTERED HEMODYNAMIC, NEUROHUMORAL, AND BRAIN METABOLITE PROFILES IN CHILDREN WITH ORTHOSTATIC INTOLERANCE AND CHRONIC NAUSEA
Orthostatic Intolerance (OI) is a type of autonomic dysfunction affecting >500,000 adults and children in the United States. Upon standing, subjects with OI have impaired blood pressure (BP) regulation that leads to debilitating symptoms of dizziness, fatigue, nausea, and fainting. The development …
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The Effects Orthostatic Hypotension has on Falls: A study done in San Francisco with the Patient Population of the Veterans Affairs Hospital
<p>The Effects Orthostatic Hypotension has on Falls: A Study Done in San Francisco Represented</p> <p>Population of the Veterans Affairs Hoapital</p> <p>The global AIM of this project is to Identify patients that are at risk for Orthostatic Hypotension (OH) with in the first 24 hours of addmission. …
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Principal component based system identification and its application to the study of cardiovascular regulation
… microgravity on cardiac autonomic control and orthostatic intolerance (OI). Experimental data from a prolonged bed rest study (simulation of microgravity condition) are analyzed and the conclusions are: 1) prolonged bed rest may impair autonomic control of heart rate; 2) orthostatic intolerance …
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Cardiovascular Consequences of Estrogen Deficiency: Studies in Premenopausal Women
… cardiovascular responses to exercise and orthostatic stress in ExFHA women with responses in physically active (ExOv) and sedentary (SedOv) eumenorrheic ovulatory women. Measures included calf blood flow (BF), brachial artery (BA) endothelial dependent and independent function, shear rate …
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System identification of dynamic closed-loop cardiovascular control of total peripheral resistance by arterial and cardiopulmonary baroreceptors
… (CO) and arterial blood pressure (Pa) against orthostatic stress during re-entry and in the post-flight period. To date, available countermeasures have not been able to eliminate the observed orthostatic hypotension. The mechanisms responsible for the observed orthostatic intolerance are not …
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Markers of Prognosis in Neurodegenerative Dementia
… time of MMSE 17±1. III. Patients with persistent orthostatic hypotension exhibited shorter length-of-survival compared to patients with no or mild orthostatic hypotension. Patients with constipation and / or urinary incontinence, in addition to persistent orthostatic hypotension, had the shortest …
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Diabetes: The Interrelationship between Vascular, Nervous Systems and Avandia
… function. Evaluating skin blood flow, orthostatic tolerance, heart rate, and thermal responses under thermal and postural stress did assessment of the autonomic nervous system reactivity. Evaluating the subject’s gait assessed the function of the somatic nervous system.</p> <p>The …
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Autonominės nervų sistemos įtaka vazomotorinėms nosies reakcijoms /
… the following parameters: MBP during the active orthostatic sampling, pulse rate after the Valsalva manoeuvre, pulse rate before and after the active orthostatic sampling. The obtained findings confirmed that heart contraction rate variability parameters reflecting the autonomic NS status may be …
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Cardiovascular and Inflammatory Consequences of Adverse Childhood Experiences
… the hemodynamic and autonomic responses to orthostatic stress. This thesis identified enhanced blood pressure and total peripheral resistance responses and blunted RR-interval, cardiac output, and cvBRS responses to 60° HUT in individuals who experienced ≥ 4 ACEs; suggesting a reduced vagal …
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Development of a method for calculation of cardiac output using Doppler ultrasound
… for a cardiovascular abnormality called the orthostatic intolerance, which is found in astronauts returning from space as well as people on earth.
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Changes in venomotor tone during sympathoexcitation: influence of gender and female cycle phase
… on its own to maintain venous return during orthostatic challenge.
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Peripheral and Central Muscarinic Cholinergic Receptors in Arterial Blood Pressure Regulation
… dysfunction. During the onset of LBNP -40 too, orthostatic hypotension (OH) was observed in both the older subjects and the post-blockade younger subjects, with a diminished HR response. Furthermore, the reflex response to hypertensive stimuli was augmented in the post-blockade younger subjects, …
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