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 12 of 12 for “"bone geometry"”.
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Visualisation and manipulation of 3D patient-specific bone geometry using augmented reality
… to create an in-vivo view of 3D patient-specific bone geometries as a hologram in the clinician's FOV.
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Tibial-fibular morphology: variation, sexual dimorphism, and mechanical implications
… with the mechanical fatigue of load-bearing bone. The tibia is the most frequently fractured site and females are at much greater risk than males. Bone geometry and density are hypothesized risk factors for stress fracture and are thought to contribute to the disparity in risk between sexes …
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Association Analyses of Estrogen Receptor a Gene Polymorphisms with Bone Geometric Property at The Femoral Neck in Caucasian Nuclear Families
… of osteoporosis is its association with bone fragility. Bone geometry is an important risk factor for fracture, independent to BMD, and is genetically determined. However, genetic studies on bone geometry compared with BMD are scarce. Estrogen receptor a (ER-a) gene and its products have …
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The development and validation of a geometrically simplified and an accurate finite element model of the wrist joint
… was created using an approximation of real bone geometry, with material properties that could be varied.
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The Nuances of Locomotor Strategies in Suspensory Primates (Apes): Locomotor Costs in Terms of Skeletal Injury
… apes. Second, to quantify change in compact bone geometry associated with bone fracture and bone remodeling in suspensory apes.</p> <p>To obtain the first goal, fracture frequency, severity, and remodeling are examined in limb bones from skeletons of 141 wild-caught primates according to four …
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Determining mechanical properties and type of fracture of osseous tissues from spent hens
… size, and cage profile on the strength of these bones. Body size affected (P < 0.05) the ultimate shear forces of the femur, tibia, and tarsometatarsus. The ultimate bending force and shear modulus of the tibia were also influenced by body weight (P < 0. 05). Juvenile protein sequence and body …
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Development and Validation of a Computational Musculoskeletal Model of the Elbow Joint
… are dictated by three-dimensional bony geometry contact, ligamentous constraints, and muscle loading.Accurate three-dimensional bone geometry was generated by acquiring CT scans, segmenting the images to isolate skeletal features, and fitting surfaces to the segmented data. Ligaments …
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Biomechanical model of the shoulder joint
… to correct for curved muscle paths and bone geometry, providing realistic muscle orientation over a wide range of limb positions. An optimization routine has been incorporated, minimizing overall maximum muscle stress in the 26 individual muscle elements considered. The model utilizes …
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Effect of isokinetic resistance training on ulnar stiffness in young, college-aged women
Bone mineral content (BMC) and bone mineral density (BMD), measured by dual x-ray absorptiometry are used clinically to diagnose osteoporosis and estimate risk for fragility fractures. Bone mineral explains up to 70% of bone strength; however, it does not take into account bone geometry. Mechanical …
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Osteoporosis in elderly women; Bone traits, fracture and the PTH gene complex
… preventive measures and treatment is essential. Bone strength is partly dependent on lifestyle but genetic factors account for approximately 70-80%. Parathyroid hormone (PTH) is the key regulator of calcium homeostasis in the human organism and in addition a powerful skeletal anabolic agent when …
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A 3D neuromuscular model of the human ankle-foot complex based on multi-joint biplanar fluoroscopy gait analysis
… fluoroscopy (BiFlo) enables three-dimensional bone kinematics analysis using x-ray videos and bone geometry from segmented CT. Hindered by a small capture volume relative to traditional optical motion capture (MOCAP), BiFlo applications to human movement are generally limited to single-joint …
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Exercise in Youth and Long-Term Effects on Bone and Joints
… Genetic contribution for the variance in bone mineral density (BMD) is estimated at around 60–80%, and for OA 50%, leaving a considerable proportion to environmental factors of which exercise is known to influence both. Most intervention studies have shown exercise-induced BMD benefits in …