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Biomedical Engineering and Bioengineering Commons™
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- Lumbo-pelvic coordination (3)
- Low back pain (2)
- Action potential duration (APD) (1)
- Activities of daily living (1)
- Acute hyperglycemia (1)
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- Blood Flow (1)
- Blue light (1)
- Closed-loop system (1)
- Dynamic protocol (1)
- Epilepsy (1)
- Ergonomics (1)
- Fluorescence (1)
- Forward bending and backward return (1)
- Hydrogel (1)
- Lower back mechanical demand (1)
- Lowering and Lifting Task (1)
- Lumbar fixation (1)
- Lumbar spinal fusion (1)
- Lumbopelvic rhythm (1)
- Maximal rates of depolarization (dv/dtmax) action potential amplitudes (APA) (1)
- Mice (1)
- Multimodal Imaging (1)
- Non-chronic (1)
- Noncontact Diffuse Correlation Tomography (ncDCT) (1)
- PBAE (1)
- Scaffold (1)
- School backpack (1)
- Sinusoidal DI control (1)
- Sleep depth (1)
- Speckle Contrast Diffuse Correlation Tomography (scDCT) (1)
Articles 1 - 7 of 7
Full-Text Articles in Biomedical Engineering and Bioengineering
Lower Back Biomechanics At Non-Chronic Stage Of Low Back Pain, Iman Shojaei
Lower Back Biomechanics At Non-Chronic Stage Of Low Back Pain, Iman Shojaei
Theses and Dissertations--Biomedical Engineering
Prior studies have reported differences in lower back biomechanics during activities of daily living between individuals with and without chronic low back pain (LBP). Nevertheless, the literature on lower back biomechanics of patients with non-chronic LBP is scant. Therefore, the objective of this study, as the first step towards future prospective studies, was to investigate the lower back biomechanics in patients with non-chronic LBP. Case-control studies were conducted wherein measures of lumbo-pelvic coordination during bending and return tasks as well as measures of mechanical demand on the lower back during lifting tasks in the sagittal plane were investigated between patients …
Multimodal Noncontact Diffuse Optical Reflectance Imaging Of Blood Flow And Fluorescence Contrasts, Daniel Irwin
Multimodal Noncontact Diffuse Optical Reflectance Imaging Of Blood Flow And Fluorescence Contrasts, Daniel Irwin
Theses and Dissertations--Biomedical Engineering
In this study we design a succession of three increasingly adept diffuse optical devices towards the simultaneous 3D imaging of blood flow and fluorescence contrasts in relatively deep tissues. These metrics together can provide future insights into the relationship between blood flow distributions and fluorescent or fluorescently tagged agents. A noncontact diffuse correlation tomography (ncDCT) device was firstly developed to recover flow by mechanically scanning a lens-based apparatus across the sample. The novel flow reconstruction technique and measuring boundary curvature were advanced in tandem. The establishment of CCD camera detection with a high sampling density and flow recovery by speckle …
Sleep And Thermoregulation: A Study Of The Effect Of Ambient Temperature Manipulation On Mouse Sleep Architecture, Asma'a A. Ajwad
Sleep And Thermoregulation: A Study Of The Effect Of Ambient Temperature Manipulation On Mouse Sleep Architecture, Asma'a A. Ajwad
Theses and Dissertations--Biomedical Engineering
Good quality sleep is essential for mental and physical health. Inadequate sleep impacts memory consolidation, learning and cognition, immune function, autonomic regulation, physical performance, and other vital functions. In many neurological disorders that are associated with sleep problems such as epilepsy and Alzheimer’s disease, changes in brain circuitry affect sleep-wake regulation mechanisms; this is reflected in anomalous sleep-wake architecture and usually accompanied by poor sleep depth. Thus, over many years, many approaches have been tried in humans and animal models with the goal of improving sleep quality. Unfortunately, each of those approaches comes with limitations or side effects. Thus, there …
Adrenergic Stimulation In Acute Hyperglycemia: Effects On Cellular And Tissue Level Murine Cardiac Electrophysiology, Sridevi Thyagarajan
Adrenergic Stimulation In Acute Hyperglycemia: Effects On Cellular And Tissue Level Murine Cardiac Electrophysiology, Sridevi Thyagarajan
Theses and Dissertations--Biomedical Engineering
Cardiovascular complications associated with elevated levels of glucose in the blood (Hyperglycemia, HG) is a growing health concern. HG is known to be associated with a variety of cardiovascular morbidities including higher incidence of electrical disturbances. Although effects of chronic HG have been widely investigated, electrophysiological effects of acute hyperglycemia are relatively less known. Further, hyperglycemic effects on adrenergic response is not widely investigated. We used excised ventricular tissues from mice to record trans-membrane potentials during a variety of pacing protocols to investigate cellular/tissue level electrophysiological effects of acute hyperglycemia and adrenergic stimulation (1µM Isoproterenol, a β-adrenergic agonist). A custom …
Effects Of Lumbar Spinal Fusion On Lumbopelvic Rhythm During Activities Of Daily Living, Cameron G. Slade
Effects Of Lumbar Spinal Fusion On Lumbopelvic Rhythm During Activities Of Daily Living, Cameron G. Slade
Theses and Dissertations--Biomedical Engineering
Abnormalities in lumbopelvic rhythm (LPR) play a role in occurrence/recurrence of low back pain (LBP). The LPR before spinal fusion surgery and its changes following the surgery are not understood. A repeated measure study was designed to investigate timing and magnitude aspects of LPR in a group of patients (n = 5) with LBP before and after a spinal fusion surgery. Participants completed a forward bending and backward return task at their preferred pace in the sagittal plane. The ranges of thoracic and pelvic rotations and lumbar flexion (as the magnitude aspects of LPR) as well as the mean absolute …
Synthesis And Characterization Of Blue Light Poly(Β-Amino Ester)S, Nicholas John Kohrs
Synthesis And Characterization Of Blue Light Poly(Β-Amino Ester)S, Nicholas John Kohrs
Theses and Dissertations--Biomedical Engineering
Volumetric muscle loss (VML) is a debilitating injury which results in full or partial loss of function. Current clinical options utilize tissue grafts and bracing to restore function. Tissue graft implantation oftentimes leads to serious complications, some of which end in graft rejection and thereby necessitate further surgeries and procedures. Polymeric scaffolds show promise as scaffolding systems due to their mechanical properties and overall degradation profiles. Scaffolds need appropriate mechanical properties, 10-60 kPa modulus, and overall degradation times, five days to two weeks, to initiate tissue regeneration. Poly(β-amino ester)s (PBAE), a class of synthetic polymers, act as a safe biocompatible …
Effects Of Backpack Type On Kinematics Of The Lower Back During Walking And Jogging, Cazmon Suri
Effects Of Backpack Type On Kinematics Of The Lower Back During Walking And Jogging, Cazmon Suri
Theses and Dissertations--Biomedical Engineering
Heavy backpacks have been suggested to have a pathogenic role in experience of low back pain among children. We have conducted a repeated-measure study to investigate the backpack-induced changes in lumbo-pelvic coordination of forty gender-balanced college age students when they walked and jogged on a treadmill with two different types of backpacks: normal and ergonomically modified. The backpack-induced changes in lumbo-pelvic coordination were larger when carrying an ergonomically modified vs. a normal backpack as well as when jogging versus walking. The larger changes in lumbo-pelvic coordination when carrying an ergonomically modified backpack were likely due to kinematic restraints imposed by …