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 18 of 18 for “"Head Kinematics"”.
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Biomechanical Investigation of Head Kinematics and Skull Stiffness
This thesis presents two studies related to head injury. The study presented in Chapter 1 reviewed findings of cranial movement in animal and human specimens and evaluate the validity of cranial movement due to manual manipulation in humans through engineering analysis. The study had two parts. In …
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Football Shoulder Pad Design and Its Effect on Head Kinematics in Shoulder-to-Helmet Impacts
… effect of shoulder pad stiffness on the struck head kinematics. Additional padding was added to a shoulder pad as means to reduce the overall stiffness of the system, and an unmodified shoulder pad acted as the control. Participants performed a series of impact tests with two shoulder pad …
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Development of a Test Method for Evaluating the Ability of Headgear to Reduce Head Kinematics During Rugby Head Impacts
… yet athletes are not required to wear head protection during play. The sport has primarily relied on tackle regulations to mitigate concussion risk and has imposed standards limiting soft-shell headgear's protective capabilities. However, evidence from other contact sports, including …
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Assessment of visual performance during walking
… dynamically. The walking-induced movements of head and eyes challenge vision in different ways, and because of age-related changes in various systems, including the visual system, acquiring accurate visual information of both stationary and moving objects may become challenging with age. New …
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Understanding real-world and laboratory traumatic brain injury (TBI) using the computational model with brain functional regions
… a severe health concern. Many symptoms, such as headache, dizziness, and working memory deficits, are reported to be related to the dysfunction of brain functional regions, but the underlying mechanism remains unknown. Hence, further developing tools and analyses to understand brain dysfunction …
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Development, Validation, & Analysis of Tools to Understand the Biomechanical Basis of Exposure to Repetitive Subconcussive Impacts
… growing interest in the link between repetitive head impacts and changes in the brain related to neurodegenerative diseases which has motivated additional research to characterize and understand head impact exposure. While recent advances in impact-sensing technology have allowed the collection …
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Evaluation of the Biomechanical Performance of Youth Football Helmets
… has essentially eliminated the catastrophic head injuries it tests for. As more is known about concussion, standards specific to the youth population can be developed. The second portion of this thesis compares the impact performance between 8 matched youth and varsity helmet models, using …
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An Investigation Of The Relationship Between Axonal Injury, Biomarker Expression And Mechanical Response In A Rodent Head Impact Acceleration Model
… accounts for 40-50% of hospitalizations due to head injury and one third of the mortality due to TBI, and it is difficult to diagnose and evaluate. The purpose of this dissertation is to determine mechanical injury predictors for TAI and identify potential biomarkers to evaluate TAI.</p> <p>In …
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The Relationship Between Axonal Injury, Biomarker Expression And Mechanical Response In A Rodent Head Impact Acceleration Model
… accounts for 40-50% of hospitalizations due to head injury and one third of the mortality due to TBI, and it is difficult to diagnose and evaluate. The purpose of this dissertation is to determine mechanical injury predictors for TAI and identify potential biomarkers to evaluate TAI.</p> <p>In …
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Comparison of passive cervical spine flexion in children and adults
<p>Head trauma is the most frequent injury sustained by children in car crashes, and the neck plays a key role in governing head kinematics during the crash. Pediatric anthropomorphic test devices (ATDs) are used to assess the risk of head injury, yet the pediatric ATD neck is a size-scaled model …
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Traumatic brain injuries and older adults: The implications of neck strength, muscle activation, and range of motion
… link between neck musculature and function and head kinematics during a fall, and establish screening and prevention protocols for this significant health problem.
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Laboratory and Field Studies in Sports-Related Brain Injury
… field and in the laboratory. In the first study, head impact exposure in youth football was observed using a helmet mounted accelerometer system to measure head kinematics. The results suggest that restriction on contact in practice at the youth level can translate into reduced head impact …
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The effects of changing head position and posture on head tremor in individuals with essential tremor involving the head
Objective: To determine the effects of head position and of different postural control demands on head tremor measures in participants with essential tremor. Methods: Seventeen participants with essential tremor (ET) of the head and 17 control participants took part. Individuals held their heads in …
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SEX DIFFERENCES IN HEAD IMPACT BIOMECHANICS AND QUANTITATIVE FUNCTIONAL DEFICITS DUE TO REPETITIVE LOADING IN HIGH SCHOOL SPORTS
… are understudied with only 20% of concussion and head kinematic sensor studies including female athletes. There is growing concern for the neurological outcomes associated with repetitive head loading in contact sports. In this dissertation, the effects of repeated head loading were investigated …
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Methods and algorithms for quantitative analysis of metallomic images to assess traumatic brain injury
… and Kalman filtering to comparatively study the head kinematics in blast and impact experiments. Then, to compare BNT and INT neuropathology, methods for quantitative analysis of macroscopic optical images and fluorescent images are described. The secondary aim of this thesis focuses on …
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Developing and Evaluating New Methods for Assessing Postural Control and Dynamics
… joints (i.e., ankle-knee, ankle-trunk, and ankle-head). In addition, the uncontrolled manifold method was implemented for evaluation of potential whole-body coordination control goals. Clear patterns of intermittent wavelet coherence were evident, indicating that joint coordination is …
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Investigation of Small Remotely Piloted Aircraft System (sRPAS) to Human Head Impact
… piloted aircraft system (sRPAS) to ground human head impact could cause injuries to the public. Skull fractures and brain injuries have been observed in sRPAS-related impacts, which varied in angles, locations and velocities. This study developed a representative quadcopter sRPAS finite element …