Index Catalog // Arch : Northwestern University Institutional Repository

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:: 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:: 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

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:: 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:: 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

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