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 17 of 17 for “"Knee Valgus"”.
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Do the gluteal muscles influence dynamic knee valgus when single-leg landing?
Background: The presence of dynamic knee valgus on landing has been found to be a significant risk factor in the development non-contact anterior cruciate ligament ACL injury. Gluteal muscles especially gluteus maximus and medius are believed to have a role in controlling hip motion that is …
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The Effectiveness of Physiotherapy at a Patient with Knee Valgus and Low Back Pain
… has significant effects on lower back pain. Knee valgus has been indicated in past studies to have a negative effect on muscle strength, especially in the pelvico-lumbo-hip complex (PLHC). Understanding the level to which it affects these muscles is important since it enables the therapist to …
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Influence of physical training on knee valgus motion and physical performance abilities among adole[s]cent female basketball players
… and strength training) would decrease valgus motion at the knee joint upon impact of a jump landing task. In addition, another aim of the investigation was to determine if the training routine would enhance physical performance factors associated with specific basketball skills (e.g., …
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Biomechanical Study of Jumping & Landing Techniques: Ballet vs Non-ballet Athletes
… weak, leg axis alignment known as the dynamic knee valgus angle presented during a vertical drop jump [8, 14, 15]. Hewett et. al. concluded that a knee valgus angle was a primary predictor of the mechanism that leads to an ACL rupture [8]. By increasing the excessive knee valgus angle during a …
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The effect of change of direction angle on kneeand hip biomechanics : implications foranterior cruciate ligament injury
… frequently occur without contact. Changes in the knee valgus (abduction) angle and knee valgus (external abduction) moment and limb asymmetry have been linked to greater risk of ACLinjury. Change of direction (COD) manoeuvres are important for many field sports, however they are unfortunately …
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Evaluation of movement variability and knee biomechanics during functional sporting tasks in healthy individuals and individuals following Anterior Cruciate Ligament Injury (ACL) and ACL reconstruction
… which can occur during some sporting activities. Knee biomechanics and movement variability (MV) comprise two very important aspects relating to injury risk, where it has been suggested that the latter may play a role in ACL injury. AimThe aims of this thesis were: to investigate MV and knee …
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The relationship between lower limb biomechanicalvariables during common screening tasks
… been reported as being associated with several knee injuries. Hence it is important to develop screening tests to identify healthy individuals who may be susceptible to knee injury and then to design individual intervention programmes. There is limited literature exploring the associations …
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The effect of the Apos Therapy system on knee biomechanics in recreational athletes at risk of a non-contact anterior cruciate ligament injury
… of an unstable device (AposTherapy system) on knee biomechanics and muscular recruitment patterns while performing functional tasks. To accomplish the research, four separate trials were conductedseparatly.Firstly, a repeatability trial with 11 healthy physically active (male and …
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Biomechanical characteristics of multidirectional single-leg landing
… of the lower extremities, particularly the knee joint. It is also an important screening tool that can be used to identify those who are at risk of lower-extremity injury and to evaluate the progress of rehabilitation regimes for individuals with lower-limb injuries. However, SLL occurs in …
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The Effects of Gait Retraining in Runners With Patellofemoral Pain
… eight running sessions with no intervention. Knee flexion (Kflex), knee valgus (Kvalg), and ankle flexion (Aflex) at initial contact, knee (KL) and ankle loading (AL), patellofemoral contact force (PFCF), patellofemoral stress (PFS), Achilles tendon force (ATF), and knee pain as reported on a …
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The Relationship between Dorsiflexion Range of Motion and Knee Kinematics in a Land-and-Jump Task
… dorsiflexion range of motion and frontal knee kinematics at initial ground contact and maximal knee flexion in a land-and-jump task. Thirteen male participants (age = 23 + 2.35 y, height = 181.4 + 5.68 cm, mass = 84.5 + 17.2 kg) proficient in landing and jumping techniques and free from …
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The role of surface condition in athletic performance
… lower. Moreover, significantly smaller knee flexion angles and higher knee valgus angles were observed when jumping and landing on unstable compared to stable conditions and in women compared to men. Significant but small associations were found between behavioral and neuromuscular data, …
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Eccentric cycling rehabilitation after anterior cruciate ligament reconstruction: a randomised controlled trial of strength and biomechanical outcomes
… between groups. Largest deviations were lower knee angles and moments in the affected limb during running. However, these were not found during walking; thus, differences were highlighted by the higher-intensity task. During running, knee abduction moment was lower (more valgus) for the …
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Cross-education and neuromuscular factors relating to the prevention and rehabilitation of anterior cruciate ligament (ACL) knee injuries
… power (W), flight time (s), jump height (cm), knee abduction moment probability (KAM) and knee valgus (cm). Findings: This study found there to be significant effect for DJ velocity on first landing on time (P = 0.02), velocity on take off for SLVJ on interaction (P = 0.02) and peak power on …
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Towards an algorithm for the prediction of non-contact anterior cruciate ligament injuries
… The anterior cruciate ligament (ACL) of the knee is one of the most frequently injured ligaments in the body. 70% of ACL injuries are sustained without any direct contact to the knee, during the early stance phase of a rapid deceleration movement. Females have a significantly greater risk of …
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Neuromuscular Fatigue and Biomechanical Alterations during High-Intensity, Constant-Load Cycling
… in muscle activation and both lower (i.e. hip, knee and ankle joint) and upper (i.e. trunk) limb kinematics were examined during a high-intensity cycling time to exhaustion (TTE) test. This was performed at 90% maximal aerobic power (Pmax) with nine well-trained cyclists. Temporal relationships …