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2019

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Articles 15121 - 15150 of 16114

Full-Text Articles in Medicine and Health Sciences

The Electronic Health Record And The Clinical Informatics Researcher: A Journey To Predicting False Positive Alerts With Patient Characteristics, Timothy Kennell Jan 2019

The Electronic Health Record And The Clinical Informatics Researcher: A Journey To Predicting False Positive Alerts With Patient Characteristics, Timothy Kennell

All ETDs from UAB

Since their introduction in the 1960s, electronic medical systems have brought with them tremendous opportunities and difficult challenges. In order to address patient safety, Clinical Decision Support (CDS) was added to the system, many times in the form of "pop-up" alerts. However, traditional alert typically do not incorporate enough patient-specific context resulting in inaccurate warnings. In response, clinicians override many of them. However, the high exposure to false positive alerts results in alert fatigue, a desensitization to future ones. This issue decreases patient safety by causing clinicians to ignore legitimate alerts. Despite some shortcomings, the data in modern Electronic Health …

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Structural And Functional Insights Into The Influenza A Virus Non-Structural Protein 1 Effector Domain, Alex Kleinpeter Jan 2019

Structural And Functional Insights Into The Influenza A Virus Non-Structural Protein 1 Effector Domain, Alex Kleinpeter

All ETDs from UAB

The influenza A virus (IAV) non-structural protein 1 (NS1) is a highly multifunctional viral protein responsible for antagonizing the type-I interferon (IFN) response to infection. NS1 has therefore been identified as a potentially effective target for the development of novel anti-influenza compounds. Furthermore, it is important to understand the molecular underpinnings driving NS1 function to more effectively elucidate antiviral targets. In this dissertation, we have contributed significant insight into NS1’s potential as an antiviral target, and the structure-function relationships driving its activity in an infected cell. First, we structurally characterized the binding of two known influenza inhibitors (A9 and A22) …

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Effects Of Protein Timing And Energy Balance On Body Composition In Collegiate Athletes, Ashley Licata Jan 2019

Effects Of Protein Timing And Energy Balance On Body Composition In Collegiate Athletes, Ashley Licata

All ETDs from UAB

The current literature indicates that energy balance and protein consumption influence body composition. However, the effects of protein intake, timed protein supplementation, and energy balance on body composition have not yet been fully investigated in collegiate athletes. The purpose of this research was to assess collegiate athletes using hourly food and exercise data to examine how protein timing and energy balance relate to body composition. Aims 1 and 2 focus on collegiate female soccer athletes and further our understanding of the potential roles that protein amount and frequency and hourly energy balance play in optimizing fat mass and fat-free mass. …

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External Root Resorption In The Orthodontic Patients, Frank Earl Litchfield Jan 2019

External Root Resorption In The Orthodontic Patients, Frank Earl Litchfield

All ETDs from UAB

External Apical Root Resorption (EARR) is a side effect of orthodontic treatment that results in root shortening in about one-third of orthodontic patients. Great variability among patients exists in their susceptibility to this multifactorial condition, and both treatment and patient specific factors contribute to EARR. Root resorption values were found to be higher in Hispanics compared to Asians and Caucasians (1). However, the prevalence of EARR is not well documented in all populations. Since African Americans represent the largest minority group in the United States, establishing the prevalence and risk factors for EARR within this ethnicity is important. Objective: To …

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Smile Outcome Comparison Of Orthodontic Cases Treated With Different Extraction Patterns, Gregory Long Jan 2019

Smile Outcome Comparison Of Orthodontic Cases Treated With Different Extraction Patterns, Gregory Long

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Extraction of premolar teeth for orthodontic purposes is a common treatment approach. The effects of premolar extraction on the occlusion and the face have been studied extensively in the past. To date, however, the effects of premolar extractions on the smile have not been comprehensively quantified in the literature. The purpose of this study was to compare the smile outcome of patients treated with premolar extractions. Methods: This retrospective case-control study established 4 groups of 33 patients each for comparison. Three groups of patients with the same malocclusion were treated with different premolar extraction patterns. The remaining group of patients …

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Insuring Graduation: An Analysis Of The Association Between Student Health Insurance And Graduation, John Robert Lovett Jan 2019

Insuring Graduation: An Analysis Of The Association Between Student Health Insurance And Graduation, John Robert Lovett

All ETDs from UAB

Most college students have access to basic health services through their campus’ college health program. Unfortunately, students who lack health insurance may be limited in their access to health services beyond the acute care provided, which may manifest in a myriad of adverse outcomes; ultimately resulting in withdrawal from college without graduating. Student health insurance plans (SHIPs) are high-quality, affordable insurance plans specially designed to meet this need. This study utilized survival analysis to examine the temporal nature of college graduation behavior, as it related to student health insurance status. The results of this study show no significant relationship between …

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An Exploratory Study Of The Influence Of Perceived Organizational Support, Coworker Social Support, The Nursing Practice Environment, And Nurse Demographics On Burnout In Palliative Care Nurses, Marcia Ann Lowe Jan 2019

An Exploratory Study Of The Influence Of Perceived Organizational Support, Coworker Social Support, The Nursing Practice Environment, And Nurse Demographics On Burnout In Palliative Care Nurses, Marcia Ann Lowe

All ETDs from UAB

AN EXPLORATORY STUDY OF THE INFLUENCE OF PERCEIVED ORGANIZATIONAL SUPPORT, COWORKER SOCIAL SUPPORT, THE NURSING PRACTICE ENVIRONMENT, AND NURSE DEMOGRAPHICS ON BURNOUT IN PALLIATIVE CARE NURSES MARCIA A. LOWE SCHOOL OF NURSING ABSTRACT Burnout, a condition characterized by emotional exhaustion, depersonalization, and decreased personal accomplishment, has been studied in many disciplines in healthcare, including nursing, medicine, and social work. Working with palliative care patients and their families is innately challenging and may predispose nurses to burnout. The purpose of this study is to examine the influence of perceived organizational support (POS), coworker social support, the nursing practice environment, and nurse …

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Light Transmission And Wear Of Translucent Zirconia After Conventional And Fast Sintering Cycle, Anvita Maharishi Jan 2019

Light Transmission And Wear Of Translucent Zirconia After Conventional And Fast Sintering Cycle, Anvita Maharishi

All ETDs from UAB

ABSTRACT Introduction: Zirconia is classified by the mole percentage of yttria contained in the zirconia. The most strong and opaque material contains 3 mol % yttria, intermediate strength and opacity contain 4 mol %, and whereas 5 mol % is the weakest but most translucent zirconia. Refined zirconia powder is pressed into a mold to form a disc which is then milled to form a restoration. Post milling of sintered zirconia restorations is necessary to obtain final mechanical and physical properties of the restoration. Traditionally conventional sintering cycles required 6-8 hours to sinter. Whereas, fast sintering cycles have been have …

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Structural Studies Of Some Proteins Responsible For Bacterial Pathogenesis, Kartik Manne Jan 2019

Structural Studies Of Some Proteins Responsible For Bacterial Pathogenesis, Kartik Manne

All ETDs from UAB

A wide range of infections is attributed to the pathogenesis of Gram-positive bacteria. The emergence of multi-drug-resistant Gram-positive pathogens has been a significant health concern and present serious therapeutic challenges globally. Some of the common Gram-positive bacterial species like Streptococcus pneumonia, Group B Streptococcus, and Staphylococcus aureus are infectious by employing several virulence factors for initial adhesion, colonization, biofilm initiation and dispersion, complement evasion, nutrient acquisition, and infection. The structural insights into these virulence factors are essential for understanding their mode of action, and also for developing a new class of antibiotics; a significant interest of many researchers. Pneumococcal adhesive …

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Endothelial N-Glycan Hypoglycosylation Enhances Cd16+ Monocyte Adhesion: A Role For Alpha-Mannosidases, Kellie Regal Mcdonald Jan 2019

Endothelial N-Glycan Hypoglycosylation Enhances Cd16+ Monocyte Adhesion: A Role For Alpha-Mannosidases, Kellie Regal Mcdonald

All ETDs from UAB

Monocyte extravasation through the endothelial layer is a hallmark of atherosclerotic plaque development and is mediated by heavily glycosylated surface adhesion molecules, such as intercellular adhesion molecule-1 (ICAM-1). Human monocytes have been classified into three distinct groups: classical (anti-inflammatory; CD14+/CD16-), nonclassical (patrolling; CD14+/CD16++), and intermediate (pro-inflammatory; CD14++/CD16+). The CD16+ nonclassical / intermediate monocytes have been implicated in atherosclerosis progression and their levels positively associate with adverse cardiac events. However, there is a relative lack of understanding as to whether there are distinct mechanisms that regulate CD16+ vs. CD16- monocyte adhesion to the inflamed endothelium. Our previous data identified a high-mannose …

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Provider-Sponsored Health Plans In The Post-Reform Era, Katherine Ann Meese Jan 2019

Provider-Sponsored Health Plans In The Post-Reform Era, Katherine Ann Meese

All ETDs from UAB

The rise and fall of managed care in the 1980s and 1990s saw many hospitals and health systems in the United States enter and subsequently exit the health insurance market in the form of provider-sponsored health plans (PSHP). The passage and implementation of the legislation such as the Patient Protection and Affordable Care Act (ACA) and the Medicare Access and CHIP Reauthorization Act (MACRA) has ushered in an era of value-based reimbursement methods and a heightened focus on population health management, which has stimulated health care organizations to contemplate health plan ownership as a logical strategy. This study examined market …

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Reported Clinical And Financial Performance Of Hospitals With Physician Ceos Compared To Those With Nonphysician Ceos, Leon Moores Jan 2019

Reported Clinical And Financial Performance Of Hospitals With Physician Ceos Compared To Those With Nonphysician Ceos, Leon Moores

All ETDs from UAB

Leaders impact organizational behavior and performance, and CEOs may have greater impact via numerous proposed mechanisms. Because of this, organizations expend considerable resources recruiting and selecting CEOs and may benefit from information suggesting a positive impact on organizational performance based upon measurable CEO characteristics. Little work has been done comparing the performance of hospitals with physician CEOs versus non-physician CEOs, in spite of the ease of identification of this characteristic and extant leadership theories suggesting a relationship between technical expertise and success in leading highly technical organizations. We compared multiple measures of reported clinical and financial performance and our linear …

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Bayesian Hierarchical Negative Binomial And Zero-Inflated Negative Binomial Models For High-Dimensional Analyses With Applications To Human Microbiome Count Data, Amanda H. Pendegraft Jan 2019

Bayesian Hierarchical Negative Binomial And Zero-Inflated Negative Binomial Models For High-Dimensional Analyses With Applications To Human Microbiome Count Data, Amanda H. Pendegraft

All ETDs from UAB

The human microbiome was first described as an “ecological community of commensal, symbiotic, and pathogenic microorganisms that literally share our bodyspace”. These microorganisms, also known as microbes and bacteria, are known for participation in human health. For example, microbes extract energy from foods that are otherwise indigestible, synthesize vitamins and amino acids necessary for important bodily functions, and protect hosts against disease-carrying pathogens. Therefore, the pursuit of human microbiome research is important for understanding the influence of microorganisms throughout human systems. Human microbiome research is founded on advances in next-generation sequencing technology. Namely, the identification of microbes that constitute the …

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Organizational Characteristics And Environmental Factors Associated With Hospitals Identified As Consolidation Targets, Christi Pierce Jan 2019

Organizational Characteristics And Environmental Factors Associated With Hospitals Identified As Consolidation Targets, Christi Pierce

All ETDs from UAB

In today’s dynamic healthcare landscape, hospitals face uncertainty and pressure from changing reimbursement schemas, intense government regulation, technological advances, consumer demand and workforce scarcity. These increased pressures have led to an acceleration of consolidation activities as hospitals position themselves to cope with a dynamic and complex external environment by maximizing resources, creating economies of scale and expanding access to care. Despite increased hospital consolidation activity, little is known about what makes a hospital attractive as a consolidation target to an acquiring hospital, particularly post-ACA. The purpose of this study was to evaluate the organizational characteristics and environmental factors associated with …

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Three Essays In Hospital Financial Distress: Prediction, Antecedents And Organizational Response, Neeraj Avinash Puro Jan 2019

Three Essays In Hospital Financial Distress: Prediction, Antecedents And Organizational Response, Neeraj Avinash Puro

All ETDs from UAB

The following essays examine the financial distress in acute care hospitals in the United States. The first essay examines the accuracy of prediction models of financial distress, the second explores the factors associated with financial distress and the third essay examines organizational response to financial distress. The first essay compares the predictive ability of three financial distress prediction models: modified Altman Z score (1993), Ohlson O score (1980) and Zmijewski (1984) to more accurately predict financial distress in U.S acute care hospitals. Building on the first essay, the second essay uses the most accurate predictive model to examine acute care …

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The Reductive Stress Reducto-Mir: Emerging Insight Into Microrna-671, Justin Michael Quiles Jan 2019

The Reductive Stress Reducto-Mir: Emerging Insight Into Microrna-671, Justin Michael Quiles

All ETDs from UAB

Excessive accumulation of reactive oxygen and nitrogen species (ROS/RNS) promotes cardiac pathophysiology. Although extreme oxidative burden is cytotoxic, ROS/RNS are continually generated within multiple domains of cardiac myocytes, and these species play fundamental roles in signal transduction through reversible thiol oxidation. Nuclear factor, erythroid 2 Like 2 (Nfe2l2/NRF2) is activated by ROS/RNS and binds cis regulatory antioxidant response elements (AREs) to induce the expression of a host of thiol oxidoreductases which regulate signaling events at the post-translational, transcriptional and epigenetic levels. Although oxidative stress has been linked to cardiac disease, adaptive processes in the heart require reduction-oxidation (redox) reactions as …

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Determination Of The Role Of Smu_833 In The Fitness And Virulence Of Cariogenic Streptococcus Mutans, Katherine Lynn Rainey Jan 2019

Determination Of The Role Of Smu_833 In The Fitness And Virulence Of Cariogenic Streptococcus Mutans, Katherine Lynn Rainey

All ETDs from UAB

Dental caries, commonly known as tooth decay, is the most common infectious disease worldwide. The main etiological agent of dental caries is Streptococcus mutans which can readily form a biofilm on the surface of teeth and produce acids through the metabolism of dietary sugars, which is largely responsible for the demineralization and subsequent destruction of tooth enamel. In addition, S. mutans synthesizes extracellular glucosyltransferases (Gtfs) capable of breaking apart dietary sucrose and polymerizing the glucose subunits into the sticky glucan matrix of the biofilm, imperative for the formation of robust, three-dimensional biofilms. Currently used caries therapies are not species-specific and …

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Increasing Living Kidney Donation Through Advocacy And Patient Navigation, Rhiannon Deierhoi Reed Jan 2019

Increasing Living Kidney Donation Through Advocacy And Patient Navigation, Rhiannon Deierhoi Reed

All ETDs from UAB

As the prevalence of kidney disease continues to increase in the United States, the gap between the need for organs and available kidney donors is growing as well. Deceased donor organs alone are insufficient to meet this need, and transplant centers have turned their focus to living donation to address the shortage. However, the frequency of living kidney donation has been declining in the US since 2004. Changes in the health of the US population have been suggested as one possible explanation for the decline, but currently these assertions remain anecdotal. A second theory with more published evidence attributes the …

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The Role Of Suppressor Of Cytokine Signaling 3 In Neuroinflammatory Disease, Zhaoqi Yan Jan 2019

The Role Of Suppressor Of Cytokine Signaling 3 In Neuroinflammatory Disease, Zhaoqi Yan

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The Janus Kinase/Signal Transducers and Activators of Transcription (JAK/STAT) pathway plays a critical role in cytokine-mediated responses in both innate and adaptive immunity, and dysregulation of the JAK/STAT pathway is linked to many inflammatory disorders. Multiple Sclerosis (MS) is an inflammatory demyelinating disease that affects the central nervous system, and both innate and adaptive immunity are involved in disease progression. STAT3 signaling is critically involved in MS pathology and is negatively regulated by Suppressor Of Cytokine Signaling 3 (SOCS3). Both increased STAT3 activation and reduced SOCS3 expression are observed in immune cells from patients with MS. Although the role of …

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Exposure Assessment Of Ultrafine Particles And Hazardous Chemicals In Electronic Cigarettes, Oluwabunmi Magret Dada Jan 2019

Exposure Assessment Of Ultrafine Particles And Hazardous Chemicals In Electronic Cigarettes, Oluwabunmi Magret Dada

All ETDs from UAB

The widespread use of electronic cigarettes (e-cig) among youths and adolescents is a growing public health problem due to exposures to harmful byproducts formed during heating. These byproducts include particulate matter, benzene, and toluene. However, the mechanisms and variables governing their formation including the chemical content of e-cig liquid (e-liquid) are not fully understood. This study aimed to assess exposures to particulate matter, benzene, and toluene in e-cig vapors (e-vapors) and their coupling to e-liquid chemical content. A novel nuclear magnetic resonance spectroscopy method was developed to characterize e-liquids (propylene glycol, glycerol, and nicotine) and the functional content of flavorings. …

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Kidney Resident Macrophages Utilize Developmental Programming During Healing From Acute Kidney Injury, Jeremie Matthew Peabody Lever Jan 2019

Kidney Resident Macrophages Utilize Developmental Programming During Healing From Acute Kidney Injury, Jeremie Matthew Peabody Lever

All ETDs from UAB

Acute kidney injury (AKI) can be a devastating condition, affecting up to sixty percent of critically ill patients in the United States. Despite the fact that AKI is associated with an increased risk of chronic kidney disease (CKD) and mortality, there are no targeted therapies available to treat it. Kidney resident macrophages (KRM) are likely necessary for healing and resolution of animal models of AKI. However, there remains a gap in knowledge regarding how KRM effect this function. The purpose of my thesis was to elucidate lineage relationships and functionally relevant adaptations of KRM and monocyte-derived mononuclear phagocytes (infiltrative MP) …

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Characterizing The Hiv-1 Envelope N-Glycan Shield, Audra Ann Hargett Jan 2019

Characterizing The Hiv-1 Envelope N-Glycan Shield, Audra Ann Hargett

All ETDs from UAB

In 2017, there was an estimated 1.8 million new HIV-1 infections worldwide. Development of an effective HIV-1 vaccine would begin to quell this global pandemic. HIV-1 envelope (Env) glycoprotein is the main vaccine candidate target due to the immune systems ability to generate broadly neutralizing antibodies (bnAbs) against Env. Approximately 90 N-glycans form a glycan shield that is the primary interface between the virus and host immune system. Key glycan motifs within the glycan shield are targets for bnAbs and are necessary for HIV-1 infectivity. Herein, we explore how naturally occurring mutations alter the glycan shield and HIV-1 Env function. …

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Applying Markov Processes To Model Disability In Relapsing Multiple Sclerosis Patients, Anastasia Hartzes Jan 2019

Applying Markov Processes To Model Disability In Relapsing Multiple Sclerosis Patients, Anastasia Hartzes

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Modeling disability in multiple sclerosis (MS) is challenging due to its complexity and non-linearity, with utilized methodology having many limitations. Lack of a suitable biomarker has led to relying on statistical models to understand disease progression. Markov methodology has been limitedly applied to the clinically-assessed Expanded Disability Status Score (EDSS), but not to patient-reported Patient Determined Disease Steps (PDDS); both measure disease progression and disability, and neither have been analyzed using the Test of Lumpability (TOL). It is common practice to aggregate these scores for computational or inferential convenience; in the case of Markov Chains (MC), combining states is referred …

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Investigating The Rho-Kinase (Rock) Signaling Pathway As A Therapeutic Target In Alzheimer’S Disease, Benjamin Wade Henderson Jan 2019

Investigating The Rho-Kinase (Rock) Signaling Pathway As A Therapeutic Target In Alzheimer’S Disease, Benjamin Wade Henderson

All ETDs from UAB

Current estimates project that there are approximately 5.4 million Americans affected by Alzheimer’s disease (AD). While this number is expected to dramatically increase in the years to come, there is currently no disease modifying therapeutic to prevent or slow AD progression. Cognitive decline is a clinical hallmark of AD, while accumulation of amyloid-β (Aβ) is a pathological hallmark. Work in the field has demonstrated that mitigating Aβ levels may serve as a rational therapeutic avenue to slow progression of the disease. Pharmacologic inhibition of the Rho-associated protein kinases (ROCK1 and ROCK2) is proposed to curb Aβ levels, and mechanisms that …

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Bdnf/Trkb.T1 Signaling: A Novel Mechanism Of Astrocyte Morphological Maturation, Leanne Holt Jan 2019

Bdnf/Trkb.T1 Signaling: A Novel Mechanism Of Astrocyte Morphological Maturation, Leanne Holt

All ETDs from UAB

Astrocytic morphogenesis and maturation are critical steps in central nervous system (CNS) development. During morphological maturation, astrocytes extend fine peripheral processes which infiltrate the neuropil and form intimate partners with neuronal structures, including synapses, where they facilitate neurotransmitter and K+ uptake and contribute to synaptic development and stabilization. The developmental time window of astrocyte morphological maturation and refinement is well defined, but the molecular mechanisms that underlie this process are not understood. Brain derived neurotrophic factor (BDNF) is a critical growth factor involved in the development and maturation of neurons. We developed a novel technique for the specific isolation of …

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The Influence Of O-Glcnacylation On Dna 5-Hydroxymethylation In The Epileptic Hippocampus, Richard Gilbert Sánchez Jan 2019

The Influence Of O-Glcnacylation On Dna 5-Hydroxymethylation In The Epileptic Hippocampus, Richard Gilbert Sánchez

All ETDs from UAB

Epilepsy is a neurological disorder that affects roughly 3 million Americans and 65 million individuals worldwide. Although there are several known causes of epilepsy, little is understood about the development of epilepsy or epileptogenesis. What has been observed through multiple studies of epilepsy is an alteration of the proteomic profile, along with a distinct change in post-translational modifications (PTM). Studies have focused on phosphorylation and a variety of kinases that are upregulated during epilepsy with little clinical translation. This dissertation investigates O-GlcNAcylation, a PTM that is highly intertwined with the cellular metabolism, and its epigenetic effects on gene expression via …

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Postpartum Body Composition And Breast Milk Hormones, Camille Schneider Jan 2019

Postpartum Body Composition And Breast Milk Hormones, Camille Schneider

All ETDs from UAB

The prevalence of both adult and child obesity continues to rise. Children born to mothers with obesity have a greater risk for future obesity and chronic disease. There is an increasing body of literature suggesting that pregnancy and infancy are critical periods influencing the child’s risk for obesity. However, little is known about whether consumption of breast milk from an obese mother might influence the child’s metabolic programming and growth. The purpose of this dissertation was to examine the association of maternal adiposity with insulin and leptin in breast milk and, in turn, whether breast milk insulin, leptin, and glucose …

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Targeting The Nad Salvage Pathway For The Treatment Of The Parasitic Disease Schistosomiasis, Michael David Schultz Jan 2019

Targeting The Nad Salvage Pathway For The Treatment Of The Parasitic Disease Schistosomiasis, Michael David Schultz

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Schistosomiasis, also known as bilharzia, is the third most common parasitic infection worldwide and a major source of morbidity and mortality in developing countries. Caused by trematodes in the genus Schistosoma, this parasitic disease has no vaccine therapy and resources for drug development are scarce. Despite an unknown mechanism of action, praziquantal has become the primary source of treatment due to its efficacy against all species of Schistosoma. However, with increased drug resistance in endemic areas and low activity against immature parasites, relying on this single drug is unsustainable and risky. Hence, there is a growing need for new, safe …

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Examining The Impact Of Couple Relationship Factors On Male Engagement Pregnancy Health And Communal Coping, Pamela Musoke Jan 2019

Examining The Impact Of Couple Relationship Factors On Male Engagement Pregnancy Health And Communal Coping, Pamela Musoke

All ETDs from UAB

Focusing on male partner engagement in HIV prevention is an important aspect of intervention and policy development and implementation within the sub-Saharan African context. However, engaging male partners safely and effectively to improve the impact and sustainability of HIV prevention modalities remains challenging due to continued impact of traditional gender roles that may affect the willingness and confidence to engage in pregnancy health. Additionally, the lack of knowledge of how best to engage in pregnancy health beyond financial support makes it difficult for male partners to engage. This dissertation’s overall aim is to explore aspects of male partner engagement's influences …

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Effects Of Differential Fore Aft Resistance On Propulsive Force Generation During Walking In Nonimpaired And Poststroke Individuals, Avantika Naidu Jan 2019

Effects Of Differential Fore Aft Resistance On Propulsive Force Generation During Walking In Nonimpaired And Poststroke Individuals, Avantika Naidu

All ETDs from UAB

Background: Impaired paretic limb-loading dynamics and force-generation ability due to hemiparesis are partially responsible for permanent locomotor deficits poststroke. During walking, inability of the paretic limb to generate sufficient propulsive-forces causes reliance on compensatory strategies, wherein the nonparetic limb generates the majority of propulsive-forces needed for forward progression and speed modulation. Purpose: To investigate factors that can improve paretic limb propulsion and walking function, I present four studies. The first pertains to a protocol for a poststroke body-weight-support treadmill-training (BWSTT) study, while the others concern a mechanistic exploration of propulsive-force generation during walking against combined and differential FA resistance. Methods: …

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