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Showing 1 to 8 of 8 for “"bone composition"”.
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Kinetics of notch signaling during osteoclastogenesis
<p>Bone remodeling, the process of removing and replacing damaged bone matrix, is a dynamic physiological process essential to maintaining bone composition and integrity. Improper coordination of resorption and formation can lead to pathologic changes in bone composition and quality, as is seen in …
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Finite Element Simulation of the MRTA Test of a Human Tibia
… response tissue analyzer (MRTA) tests long bone quality through low frequency, low amplitude vibration in vivo. The MRTA measures complex stiffness over a range of low frequencies, offering a wealth of information on bone composition. Previous MRTA interpretation used lumped parameter …
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NEAR INFRARED SPECTROSCOPIC ASSESSMENT OF BONE WATER BINDING TO COLLAGEN AND MINERAL
Cortical bone fragility increases with age, therapeutic drug use and disease states. Clinically, bone fragility is evaluated by assessment of bone mineral density (BMD); however, studies have shown that other factors such as bone architecture, cell turnover and tissue composition influence bone …
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Valoración del crecimiento y la evaluación de la dieta en gimnastas de artística femenina de élite
… addition to the onset of puberty, their body and bone composition are going through important changes. Long term nutritional counseling can provide beneficial results for the health, as well as athletic performance, of gymnasts. Their training régimen is characterized by high impact exercise, and …
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Performance Evaluation of Material Decomposition Using Rapid Kvp-Switching Dual-Energy Ct For Assessing Bone Mineral Density
<p>Osteoporosis is diagnosed by assessing the bone mineral density (BMD) of the trabecular bone, and has previously been characterized with dual-energy x-ray absorptiometry (DXA) or single-energy computed tomography (SECT). Dual-energy computed tomography (DECT) is able to create two …
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Dietary calcium: Effect of bioavailability and level of intake on bone growth, development and maintenance in the rat
… to determine the effect of calcium intake on bone growth, development and maintenance using the rat as a model. The central hypotheses that were tested were: (I) dietary calcium provided from a low bioavailable source will compromise both bone quality and bone quantity in the young and old …
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Simulations of deformations and fracture of biological materials
… Secondly, we model the deformation of a cortical bone due to microindentation. Thirdly, we model the fracture of cortical bone under a uniaxial tensile load by using an extended finite element method. Finally, we evaluate how an arrangement of curved mineral lamellae in bone, at a nanoscale, …
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Investigation of age related changes to porcine cortical bone using nanoindentation and ash content
… on the characterization of porcine cortical bone during its development stage. The goal of this research is to gain a further understanding of cortical bone, and to obtain data that can be used for inputs and validation of a computational model of cortical bone and individual bone lamella. …