Browsing Theses by Subject "spine"
Now showing items 1-11 of 11
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Computational modeling of trabecular bone indentation and development of a new test method to perform unconstrained load-induced subsidence of an intervertebral body fusion device
(University of Waterloo, 2024-04-24)Intervertebral body fusion devices (“interbody cages”) used in spinal surgeries are susceptible to axial and/or rotational subsidence into the underlying trabecular bone of the spinal vertebrae. Despite the variety of ... -
Establishing the Effect of Vibration and Postural Constraint Loading on the Progression of Intervertebral Disc Herniation
(University of Waterloo, 2009-06-19)Intervertebral disc herniations have been indicated as a possible injury development pathway due to occupational vibration exposures in seated postures through epidemiological investigations. Little experimental evidence ... -
Examining the Neuromuscular and Mechanical Characteristics of the Abdominal Musculature and Connective Tissues: Implications for Stiffening the Lumbar Spine
(University of Waterloo, 2008-04-30)Research has uncovered an essential role of proper abdominal muscle function in ensuring the health and integrity of the lumbar spine. The anatomical arrangement of the abdominal musculature (rectus abdominis, external ... -
Hip & Spine Mechanics - Understanding the linkage from several perspectives of injury mechanisms to rehabilitation using biomechanical modelling
(University of Waterloo, 2020-01-08)One recent megatrend in medicine is that of “precision medicine” whereby a precise diagnosis leads to a precise intervention for superior results. This thesis was undertaken to enhance the understanding of spine and hip ... -
The Influence of the Tensile Material Properties of Single Annulus Fibrosus Lamellae and the Interlamellar Matrix Strength on Disc Herniation and Progression
(University of Waterloo, 2009-07-30)Low back pain is highly prevalent in the developed world, with 80% of the population being affected at some point in their lives. Herniation, a common injury to the intervertebral disc, is characterized as the posterior ... -
Kinematics and 3-D Rotational Trunk Stiffness of the Unilateral Transfemoral Amputee across Five Activities of Daily Living
(University of Waterloo, 2015-09-30)Review: Research examining trunk biomechanics in the transfemoral amputee population has only recently begun to include analysis of trunk muscle activity. Based on the absence of knee extensor muscles in the prosthetic ... -
Mechanical response of the porcine cervical spine to acute and repetitive anterior-posterior shear
(University of Waterloo, 2011-01-13)Approximately 80% of the population will experience low-back pain within their lifetime. Significant research efforts have focused on compressive loading as an injury mechanism that could lead to low-back pain and injury. ... -
Numerical Modelling of the Human Cervical Spine in Frontal Impact
(University of Waterloo, 2006)Motor vehicle accidents continue to be a leading cause of cervical spine injury despite a conscientious effort to improve occupant safety. Accurately predicting occupant head and neck response in numerical crash simulations ... -
On the structure of invertible elements in certain Fourier-Stieltjes algebras
(University of Waterloo, 2021-08-27)Let $G$ be a locally compact group. The Fourier-Stieltjes and Fourier algebras, $B(G)$ and $A(G)$ are defined by Eymard to act as dual objects of the measure and group algebras, $M(G)$ and $L^1(G)$, in a sense generalizing ... -
Quantification of spine stability: Assessing the role of muscles and their links to eigenvalues and stability
(University of Waterloo, 2011-12-21)Approximately 50% - 80% of the population will experience disabling low back pain at some point in their life. Assessing and developing interventions based on “lumbar stability” and/or joint stiffness to reduce low back ... -
Refining the relationship between the mechanical demands on the spine and injury mechanisms through improved estimates of load exposure and tissue tolerance
(University of Waterloo, 2008-07-09)The low back loading to which an individual is exposed has been linked to injury and the reporting of low back pain. Despite extensive research on the spine and workplace loading exposures, statistics indicate that efforts ...