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-
- Description:
- Stairs and curbs often present as an exhausting environmental barrier for individuals with bilateral cerebral palsy (CP) due to their lower limb motor impairments. Indeed, performance in stair-climbing in this population has a higher correlation with disruption of mobility than walking. Community members affected by CP consider impaired mobility a...
- Subject:
- Physical therapy, Biomedical engineering, and Biomechanics
- Creator:
- Goyal, Vatsala
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 08/23/2023
- Date Created:
- 2023-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:16701 and etdadmin_upload_1010522
-
- Description:
- Muscle strength assessment is a standard part of any clinical evaluation. Due to the kinematic and muscular redundancy in the human musculoskeletal system, muscle strength can not be measured directly in vivo. Clinicians utilize specific postures and forces to bias the muscles of interest, then infer the muscle strength from...
- Keyword:
- Active Learning , Parameter Estimation , Musculoskeletal Model, and Cervical Spine
- Subject:
- Mechanical engineering and Biomechanics
- Creator:
- Abbott, Rebecca Elizabeth
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 04/15/2021
- Date Created:
- 2021-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_797807 and http://dissertations.umi.com/northwestern:15487
-
- Description:
- The dynamics of human joints are fundamental characteristic of the human motor system, and altered joint impedance can hinder mobility. Individuals with transtibial amputation typically experience slower and energetically costly gait, while individuals with chronic stroke experience persisting gait deficits arising from spasticity, hypertonia and paresis. Investigating joint impedance of...
- Keyword:
- Stroke, Impedance, System Identification, and Rehabilitation
- Subject:
- Biomedical engineering and Biomechanics
- Creator:
- Shorter, Amanda L
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 04/15/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_780328 and http://dissertations.umi.com/northwestern:15392
-
- Description:
- Predicting pediatric spinal deformity (PSD) from X-ray images collected on the patient's initial visit is a challenging task. This research provides a bio-informed framework based on a mechanistic machine learning technique with dynamic patient-specific (PS) parameters to predict PSD. We provide a geometry-based bone growth model that can be utilized...
- Keyword:
- Adolescent idiopathic scoliosis (AIS), Mechanistic bio-informed machine learning, Pediatric spinal deformity (PSD), 3D reconstruction, X-ray images, and Mesh registration
- Subject:
- Mechanical engineering and Biomechanics
- Creator:
- Tajdari, Mahsa
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 06/22/2022
- Date Created:
- 2022-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_879756 and http://dissertations.umi.com/northwestern:15944
-
- Description:
- Ankle sprains are the most common musculoskeletal injury. After an ankle sprain, about 40% of individuals develop Chronic Ankle Instability (CAI), resulting in recurrent sprains, the ankle giving way, or feelings of instability. Most sprains occur due to excess inversion of the ankle. Frontal-plane ankle stiffness quantifies the ankle’s ability...
- Subject:
- Biomedical engineering and Biomechanics
- Creator:
- Villamar, Zoe Dahlia
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 08/23/2023
- Date Created:
- 2023-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:16668 and etdadmin_upload_1002685
-
- Description:
- Shoulder (glenohumeral joint) osteoarthritis causes pain, limits daily activities, and frequently requires joint replacement surgery. In shoulder osteoarthritis, the glenoid bone surface erodes in one of two ways: symmetrically (concentric deformity) or asymmetrically (eccentric deformity). Shoulder replacements in patients with eccentric deformities fail and require additional, revision surgery more often...
- Keyword:
- Shoulder osteoarthritis, Arthroplasty, and Rotator cuff
- Subject:
- Biomedical engineering and Biomechanics
- Creator:
- Coats-Thomas, Margaret Sarah
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 09/22/2022
- Date Created:
- 2022-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_913153 and http://dissertations.umi.com/northwestern:16136
-
- Description:
- A major distinction among different skeletal muscles in the human body is the number, size, and arrangement of its cells, referred to as a muscle’s architecture. Muscle architecture is indicative of a muscle’s ability to contract and produce force and, like muscle function, is plastic. While neuromuscular plasticity is the...
- Keyword:
- Imaging, Sarcomere, Wrist, Muscle, and In vivo
- Subject:
- Bioengineering and Biomechanics
- Creator:
- Adkins, Amy
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 10/07/2021
- Date Created:
- 2021-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15688 and etdadmin_upload_840250
-
- Description:
- Normal gastroesophageal motilty is important to live a comfortable and healthy life. Motility disorders result in impaired transport of ingested food which can lead to extreme discomfort and severe damage to the walls of the esophagus. Significant work has been done to study gastroesophageal motility using advanced diagnostic tools such...
- Keyword:
- gastrointestinal biomechanics, reduced-order modeling, esophageal motility disorders, peristalsis, fluid-structure interaction, and immersed boundary method
- Subject:
- Computational physics, Fluid mechanics, and Biomechanics
- Creator:
- Acharya, Shashank
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 06/28/2021
- Date Created:
- 2021-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15539 and etdadmin_upload_816410
-
- Description:
- The shoulder is the most mobile joint in the human body, allowing for the execution of complex and athletic tasks. Unfortunately, such expansive mobility comes at a cost. The shoulder is prone to instability, or painful symptoms associated with increased humeral head translation, and dislocation. To prevent dislocations and maintain...
- Keyword:
- impedance, musculoskeletal modeling, joint stiffness, shoulder instability, and muscle reflex
- Subject:
- Nanoscience, Biomedical engineering, and Biomechanics
- Creator:
- Nicolozakes, Constantine
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 06/28/2021
- Date Created:
- 2021-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_817085 and http://dissertations.umi.com/northwestern:15541
-
- Description:
- Humans have a remarkable ability to create stable walking patterns that can resist and recover from perturbations. Unfortunately, this ability is substantially impaired after a stroke, limiting mobility and contributing to a high fall rate. To facilitate gait training during post-stroke rehabilitation, clinicians often incorporate body-weight support (BWS) systems that...
- Keyword:
- Stroke, Stability, Gait, and Biomechanics
- Subject:
- Physical therapy, Biomedical engineering, and Biomechanics
- Creator:
- Dragunas, Andrew
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 10/07/2021
- Date Created:
- 2021-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15636 and etdadmin_upload_831434
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- Description:
- We rely on the properties of our skeletal muscles to traverse our world, interact with objects, and complete everyday tasks. The macroscopic properties of muscles that endow us with these abilities arise from the material properties of muscle fibers and the surrounding extracellular matrix (ECM), as well as how they...
- Keyword:
- Skeletal Muscle, Decellularization, Material Properties, Ultrasound Shear Wave Elastography, and Extracellular Matrix
- Subject:
- Biomedical engineering and Biomechanics
- Creator:
- Reyna, William Eric
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/01/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_773821 and http://dissertations.umi.com/northwestern:15352
-
- Description:
- We perform many movements every day without much deliberation. However, moving can be seen as a form of decision-making since one of many possible movements must be selected and executed. The decision-making processes that underlie movements are influenced by various factors, including sensory perception, energetics, time, perceived rates of failure...
- Keyword:
- hind brain, reticulospinal, decision, escape, spinal cord, and looming
- Subject:
- Biomedical engineering, Neurosciences, and Biomechanics
- Creator:
- Bhattacharyya, Kiran
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_653282 and http://dissertations.umi.com/northwestern:14560
-
- Description:
- The esophagus plays a crucial role in the functioning of the gastrointestinal tract and esophageal disorders are associated with reduced quality of life. Several studies have reported that there is a high worldwide prevalence of esophageal disorders. Esophageal disorders are related to the mechanical properties and function of the esophageal...
- Subject:
- Mechanics, Artificial intelligence, and Biomechanics
- Creator:
- Halder, Sourav
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 05/31/2023
- Date Created:
- 2023-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:16567 and etdadmin_upload_985717
-
- Description:
- Spinal cord injury (SCI) is a devastating injury, which can be caused by motor vehicle accidents, violence, and non-traumatic causes. These injuries can leave patients with lifelong paralysis, as well as incontinence and life threatening autonomic dysreflexia. There is currently no FDA approved treatment for SCI. Spinal injury disrupts the...
- Keyword:
- Nanotechnology, Fibronectin, Spinal Cord Injury, Fibrosis, Mechanical Properties, and Gliosis
- Subject:
- Biology, Biomechanics, and Neurosciences
- Creator:
- Cooper, John Gregory
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:14557 and etdadmin_upload_650745