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 11 of 11 for “"knee angles"”.
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Knee Angles and Axes Crosstalk Correction in Gait, Cycling, and Elliptical Training Exercises
… technology, errors in marker placement on the knee results in a widely observed phenomenon known as “crosstalk” [1-18] in calculated knee joint angles (i.e., flexion-extension (FE), adduction-abduction (AA), internal-external rotation (IE)). Principal Component Analysis (PCA) has recently been …
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Muscle performance during slow isokinetic speeds
… velocity. Subjects (n = 9) completed MVC knee extension exercises during eccentric speeds of 5, 10, and 15°/sec, as well as isometric contractions. Extensor force and average EMG (aEMG) of the vastus lateralis (VL) and biceps femoris (BF) were quantified at knee angles of 55° and …
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The Effect of a Skate Treadmill Training Intervention on Stride Mechanics
… select kinematic measures of the trunk, hip, and knee angles (°). Twenty-three ice hockey players (9.7 ± 0.5 y) completed an A-B-A, within-subject, quasi-experimental training intervention. Twelve treadmill sessions were scheduled over 9 weeks. Block A was defined by sessions 1-6 and 7-12, and …
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IMU-Integrated 'Smart' Knee Brace Validation Using Optoelectronic Motion Capture During Treadmill Walking
… have been proven to be valid in measuring joint angles. A ‘smart’ brace was implemented with two IMUs and the knee joint angles calculated using data from the ’smart’ brace were compared to a gold standard motion capture system to assess the agreement and reliability of the brace. Ten …
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Time Varying Motion and Muscle Activation Patterns During Extreme Conditioning Protocols
… the 1st round to 5th round in the trunk, hip and knee angles, muscle activation, and discomfort. Despite using experienced individuals as participants, this research showed their movement patterns were affected by an extreme conditioning protocol performed with minimal rest. Therefore, …
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The Effect of Different Set-Repetition Protocols on Squat Technique In Resistance Trained Individuals
… repetition was recorded as well as the hip and knee angles at the bottom of each repetition. A three-way (gender x condition x time) analysis of variance with repeated measures (MANOVA) was used to analyze the data. Significance was set at p < 0.05.</p> <p><strong>Results: </strong>Significant …
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The role of load-regulating mechanisms In gaze stabilization during locomotion
… support duration and decreased hip, ankle, and knee angles during the gait cycle. Until now, no studies have investigated how gaze control systems respond to adaptive modification in the body load sensing system. The goal of this research is to determine the role of body load-regulating …
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A Low-Cost Computer Vision Approach for Objectively Evaluating Triple Jump Technique: Proof of Concept
… ground contact times, flight times, and knee angles, were derived from the video recordings and GMP pose data. Validation of the pose estimations and homography transformations was done primarily through subjective visual assessments using a custom Pythontool, with reprojection error …
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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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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 pubertal maturation and sex on biomechanics associated with risk of anterior cruciate ligament injury
… (ACL) injuries account for 45% of internal knee injuries and are burdensome to society due to prolonged recovery times, substantial costs of care, functional movement impairments, and an increased risk of early-onset posttraumatic osteoarthritis. Non-contact ACL injury occurrence rates are …