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 20 of 59 for “"Lower Leg"”.
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Signaling of integrin lower leg and transmembrane domains
… domain through two long extracellular legs to the ligand-binding headpiece. In addition, integrin TM homomeric association was also observed. But the role of this interaction remains elusive. In this work, the platelet integrin, αIIbβ3, has been used to elucidate the roles of integrin …
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Experimental validation of the Lower Leg Trajectory Error, an optimization metric for prosthetic feet
… alone, there are about one million people with lower limb amputation who require significantly more effort to walk than able-bodied individuals. They are subject to social stigmas preventing them from employment and independent living. There is a gap between the high-performance prosthetic feet …
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Computational Modeling to Predict Mechanical Function of Joints: Validations and Applications of Lower Leg Simulations
… computational models of the lower leg were created. Model development involved generating three-dimensional surfaces from CT images, followed by importing these surfaces into SolidWorks and COSMOSMotion. ThroughSolidWorks and COSMOSMotion, each bone surface was created into a …
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Development and Validation of a Passive Prosthetic Foot Design Framework based on Lower Leg Dynamics
People with lower limb amputations face considerable challenges to everyday mobility that affect their quality of life. This is especially the case in low and middle income countries (LMIC) where the lack of affordable high-performance prosthetic devices forces people to use inadequate limbs that …
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Lower leg and foot contributions to turnout in pre-professional female dancers: A clinical and kinematic analysis
Turnout, the act of externally rotating the legs, is produced through the summation of joint structure characteristics and ranges of motion at the hip, knee, ankle and foot. The hip joint’s contribution to functional turnout, a dancer’s preferred turnout stance, has received extensive examination, …
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The role of neuromuscular performance on bone strength and properties in the forearm and lower leg of children
… 10.5; SD 1.6y) had their dominant forearm and lower leg imaged using peripheral quantitative computed tomography (pQCT) and high resolution pQCT (HR-pQCT). Bone mass, density, area and estimated strength were assessed. Muscle area was determined from the pQCT scans and grip strength measured …
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Investigating the use of rubber to attenuate the effect of blast load applied to a surrogate lower leg
… land mine, traumatic amputation of the foot, lower leg or upper leg is generally expected. However, an anti-vehicle landmine detonating underneath a vehicle can have equally as detrimental results, as the occupants of the vehicle are bound to sustain serious injuries to the lower extremities. …
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Development and validation of a novel framework for designing and optimizing passive prosthetic feet using lower leg trajectory
… prosthetic feet to best replicate physiological lower leg trajectory under typical ground reaction forces. The goal of developing this framework is ultimately to design a low cost, mass manufacturable prosthetic foot for persons with amputations living in the developing world. Despite a vast body …
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An investigation of adjustable microgravity workstation anthropometrics through analyses of neutral body posture and lower leg muscular fatigue characteristics
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1989.
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Investigation of the impact of compression garments on endurance running performance and exercise induced muscle damage in the lower leg
Introduction: Compression garments utilisation is very popular among runners despite the relative lack of consensus in the literature regarding a beneficial impact. Methods: A randomised controlled experimental study was conducted in healthy, uninjured endurance runners (n=41) participating in the …
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Design of a Novel Mechatronic System to Test Prosthetic Feet Under Specific Walking Activity Loads and Evaluate their Lower Leg Trajectory Error
Lower limb amputees, numbered at more than 40 million globally, are challenged with limited mobility due to prosthetic devices that do not fully restore the functionalities of their biological limbs. While commercially available energy storage and return feet do restore some of the functionalities …
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Validation of Running Symmetry Using Trunk Mounted Accelerometry: Clinical Trial and Case Study
… of the synchronization of the right and left lower limbs during the gait cycle. An asymmetry due to, a pathology or musculoskeletal injury, results in abnormal loading on the foot that may be detected by trunk-mounted accelerometry. The aim of this study is to evaluate the ability of SPIHPU …
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Effects of 28 days of protein and amino acid supplementation and ankle immobilization on gastrocnemius muscle mass and strength and atrophy- and apoptosis-related gene expression in males.
… Methods: Twenty male participants wore a lower-limb immobilization boot for 28 days, consumed either a protein and amino acid supplement or an isocaloric carbohydrate placebo twice daily, and underwent testing at days 0, 14, and 28. Each testing session included hemodynamic measurements, …
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Frameworks for the design of passive prosthetic knee components using user-centered methods and biomechanics of level-ground walking
… the analysis of user-centered needs and relevant lower leg dynamics as frameworks for the design of passive prosthetic knee components that can enable transfemoral (above-knee) amputees to ambulate with minimal gait deviations leading to higher user satisfaction. The goal of developing these …
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A Novel Manually Operated Compression Device for the Prevention of Deep Vein Thrombosis
… the body. This most frequently manifests in the lower extremities. The goal of this research was to build an inexpensive device that could apply therapeutic compressive pressure to the lower leg to aid in the prevention of deep vein thrombosis using only mechanical input from the user. Several …
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Phase resetting of human walking
… wearing a robotic device that attaches to the lower leg, which applied 6 Nm torque perturbations to the ankle that acted to plantarflex the ankle. The effect of these perturbations on the stride period was then analyzed to determine the potential for phase resetting of the gait. For the …
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Evaluation of a knemometer
Knemometry is a sensitive technique to measure lower leg length. It has been utilised in the assessment of short-term growth. Knemometry is compared to other indicators of early growth. Its uses and limitations are highlighted. 11 The acquisition of a knemometer necessitated a study to establish …
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