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Showing 1 to 18 of 18 for “"Patellar Tendon"”.
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Effects of Mechanical Damage on Patellar Tendon Ultrasound Texture Parameters
The patellar tendon assists in crucial daily motion of the knee such as knee extension. Partial tears or ruptures of this tendon have a prevalence of ~14% in elite athletes and 8.5% in nonelite athletes. Patellar tendon ruptures, caused by high demand tensile loading, often occur in tendons with …
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Quantitative Texture Analysis and Automated Segmentation of Patellar Tendon Sonographic Images on Collegiate Athletes
Patellar tendinopathy, a common cause of anterior knee pain, is primarily due to degenerative changes in the patellar tendon resulting from repetitive stress. While the tendon itself is the primary focus, damage can also manifest in surrounding tissues, such as the subcutaneous tissue and the fat …
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Quantitative Texture and Blob Analyses on Patellar Tendon Sonographic Images of Collegiate Basketball Athletes
Patellar Tendinopathy (PT), commonly called "Jumper's Knee", is a condition resulting from repetitive loading of the patellar tendon that presents as anterior knee pain, which is commonly seen in basketball players due to the maneuvers in the sport. Diagnosis of PT often involves a clinical exam …
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Factors Affecting Anterior Knee Pain in Post-ACLR Comparing Patellar Tendon and Hamstring Tendon Autografts
… The most popular graft types include patellar tendon (PT) and hamstring tendon (HT) autografts. PT autografts have been blamed for chronic anterior knee pain (AKP) and extensor mechanism deficits. This study compared the PT and HT autografts and their impact on AKP in subjects who …
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The prevalence of patellar tendinopathy in elite academy rugby players: a role for measuring ground reaction forces?
… physiotherapists suggest that the prevalence of patellar tendinopathy (PT) in rugby populations is increasing. However, from a review of the published literature patellar tendinopathy is not a<br/>condition commonly reported in rugby athletes. PT can have serious consequences for an athlete, …
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A Machine Learning Approach for the Objective Sonographic Assessment of Patellar Tendinopathy in Collegiate Basketball Athletes
Patellar tendinopathy (PT) is a knee injury resulting in pain localized to the patellar tendon. One main factor that causes PT is repetitive overloading of the tendon. Because of this mechanism, PT is commonly seen in "jumping sports" like basketball. This injury can severely impact a player's …
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In vivo knee biomechanics and implications for total knee arthroplasty implant design
… normal knee, which could lead to non-physiologic patellar tracking post-TKA. Additionally, following TKA the knee joints were overstuffed in flexion, which may in part be responsible for limited post-operative range of knee flexion. Finally, standard TKA did not restore the kinematics of …
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Finite Element Modeling and Validation of the Patellofemoral Joint
… stress, muscle imbalance, misalignment, or poor patellar tracking because the kneecap may not move appropriately along the femoral groove during flexion and extension. A non surgical approach is usually preferred for these pathologies, but the failure of conservative management will result in …
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Once upon a sheep : a SEM analysis of ovine patellar enthesis
In tendon injury repair, the insertion of the tendon into the bone or enthesis often determines the quality of healing and poor enthesis often leads to treatment failure. However, natural enthesis is not very well understood and it is believed that the preparation methods of previous enthesis …
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Genetic and epigenetic variation within extracellular matrix genes as risk factors for human tendinopathy
… soft tissue injuries. Indeed, damaged tendons account for 30-50% of sports-related injuries where the lifetime risk of Achilles tendon pathology (ATP) approaches 50% in runners, and that of patellar tendon pathology (PTP) is 21% in football players. The exact aetiology and mechanisms of …
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Stretch-Shortening Cycle in Human Muscle Contraction: The Role of the Stretch Reflex in Force Production in Various Vertical Jumps
… reflex blockage was determined by a series of patellar tendon reflex tests. Integrated EMG (IEMG) activity of the vastus lateralis muscle and ground reaction forces via an AMTI force platform were recorded during the six jumps performed pre- and post-injection. High-speed cinematography and …
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Evaluation of Graft Pretension Effects in Anterior Cruciate Ligament Reconstruction: A Series of In Vitro and In Vivo Experiments
… Third, the mechanical characteristics of porcine patellar tendon (PT) were investigated by uniaxial tensile testing at two strain rates. Patella-PT-tibia complexes from freshly sacrificed skeletally immature and mature animals were loaded to failure at elongation rates of 20 and 200 mm/min. Both …
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Effect of a neuromuscular electrical stimulation muscle strength training intervention on muscle force and mass, physical health and quality of life in people with spinal cord injury
… frequency (30 Hz) NMES combined with tendon vibration, on muscle strength and mass, physical health, symptoms of spasticity and QoL in people with SCI. This thesis includes two cross-sectional studies examining the effects of patellar tendon vibration (55 Hz, 7 mm amplitude) …
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The role of novel genetic variants and DNA methylation as risk factors for tendon pathology in physically active individuals
… of all sporting injuries involve damage to tendons and in long-distance runners the lifetime risk of developing Achilles tendinopathy exceeds 50%. Patellar tendinopathy (PT) is likewise common among sporting populations, with prevalence rates higher than 30% in both volleyball and basketball …
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3D dynamic in vivo imaging of joint motion: application to measurement of anterior cruciate ligament function
… Additionally, the dynamic function of the patellar tendon during single legged jumping was measured. The findings of this dissertation have helped to elucidate the knee kinematics that increase ACL injury vulnerability by identifying the dynamic motions that result in elongation and strain …
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Vergleich zweier Rekonstruktionsverfahren nach ACL - Ruptur, Semitendinosussehnentransplantat versus Ligamentum patellae Transplantat : eine prospektive randomisierte Studie
… Semitendinosussehnenersatz und 21 (72,4%) mit Patellarsehnentransplantat wurden entsprechend dem IKDC besser als „C“ gewertet. Beide Verfahren können nach 12 Monaten als gleichwertig angesehen werden
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The Physiological and Genetic Factors Underpinning Powerful Actions in Elite Youth Soccer
… investigate the neuromuscular (Chapter Five) and tendon (Chapter Six) determinants of unilateral CMJs oriented in different directions. Our data suggests that unilateral CMJ performance is associated with direction-specific neuromuscular and tendon properties in U18 and U21 ESP. While UV CMJ …