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 22 for “"joint moment"”.
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Aging effect on successful reactive-recovery from unexpected slips: a 3D lower extremity joint moment analysis
… determine lower extremity (ankle, knee and hip) joint moments on previously collected slip perturbation experimental data. In addition, the aging effect on the joint moment generation in both normal walking and reactive-recovery conditions was examined. Dataset collected during previous slip and …
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An investigation into the variable biomechanical responses to antipronation foot orthoses
… that antipronation foot orthosis cause variable joint moment/motion biomechanical responses. If a specific biomechanical response is required to treat a specific clinical condition, it follows that practitioners cannot tailor foot orthosis confidently to alleviate symptoms thought to be …
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Novel Computational Infant Musculoskeletal Model for Biomechanical Analysis of Infant Movement
… N to represent the infant’s weight, the hip joint angle and external joint moment was calculated using inverse kinematics and inverse dynamics. Preliminary results showed a hip joint angle starting at 23.4° and 33.8° at the beginning of a kick, which then flexes to 66.6º and 66.3º at peak hip …
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ADAPTATIONS FOLLOWING UPPER EXTREMITY RESISTANCE TRAINING IN OLDER ADULTS
… healthy older adults on 1RM, maximum isometric joint moment, functional strength, and muscle volume; evaluate maximum isometric joint moment and muscle volume as predictors of functional reaching and pulling strength; and determine individual muscle contributions to these reaching and pulling …
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Advancing clinical gait analysis through technology and policy
… namely, how to address uncertainties in joint moment calculations that occur from using different body segment inertial parameter estimation models. This is identified as a technical issue needing attention from our broader policy analysis in Part I. Using sensitivity studies of forward …
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Impact of static stretch and muscular contractions on force production within the human triceps surae muscle-tendon complex
… to significantly reduce concentric plantarflexor joint moment (5.0%; P<0.05), which was correlated (r = 0.81; P<0.01) with a reduction in EMG amplitude (9.2%; P<0.05). No reduction in Achilles tendon stiffness or gastrocnemius medialis (GM) muscle operating length was found, and all measures …
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Comparison of Lower Extremity Propulsion Impulses between Recreational Athletes with Chronic Ankle Instability and Healthy Athletes During Single Leg Hop Tests
This study examined propulsion net joint moment impulses during two single-leg hop tests (SLHTs) frequently used in athletic training as return-to-play criteria. Healthy recreational athletes were statistically compared to those with chronic ankle instability (CAI), during an anterior and a …
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The effect of measurement technique, and load and fatigue, with changes in crank arm length, on lower limb kinematics in cycle ergometry
… Pedal forces in a cycling task can be defined by joint moment cost functions which describe the optimal relationship between pedalling rate and bicycle-rider geometry for any given power level. In a task where power level changes, variations in pedalling rate may result in different optimum values …
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Gait analysis of the hind limb in Labrador Retrievers with and without cranial cruciate ligament disease
… leading cause of lameness affecting the stifle joints of large breed dogs, especially Labrador Retrievers. Although CCL disease has been studied extensively, its exact pathogenesis and the primary cause leading to CCL rupture remain controversial. However, weakening secondary to repetitive …
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Biomechanical effects on lower-body extremities during a maximum effort kettlebell swing protocol
… the kinematics and kinetics of lower-body joints during a repeated, maximum effort kettlebell swing protocol. Sixteen resistance and kettlebell swing experienced males performed 10 rounds of a kettlebell swing routine (30 s of swings followed by 30 s of rest). Each participant utilized a …
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Effects of Quadriceps Fatigue on the Outcomes of Slips and Falls
… slip distance II (SDII), peak average knee joint moment during slip recovery (kneemompeak), fall frequency and, a decrease in the transitional acceleration of the whole body COM (TA) in the fatigue session further indicating higher slip severity due to fatigue. In addition, a strong positive …
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Effects of foot placement on resultant joint moments in the lower extremity joints during the squat
… of foot placement on normalized resultant joint moments of the lower extremity joints in sagittal and frontal planes during the squat. A total of 42 skilled participants (21 male and 21 female) performed squat trials (five trials per condition) with a weighted barbell of 75% of 1 repetition …
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Mechatronic and biomechanical considerations toward the design of an ankle clonus simulator
… to accurately mimic the behavior of the ankle joint of a patient demonstrating ankle clonus. However, to obtain confidence in the performance of the ankle clonus simulator, clonus has to be academically explored after which, biomechanical and mechatronic requirements of the simulator must be …
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An Attempt to Improve Stance Mechanics of Trans-Tibial Amputee Gait by the Design of a Modular Ankle Joint Prosthetic
… expenditure, osteoarthritis and lower-limb joint deterioration. Methodology: This project details the design of a novel ankle joint prosthetic (AJP) that serves as an attachment to baseline AFP’s, with the aim of facilitating better stance mechanics via the restoration of ankle joint …
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Adaptive gait strategies of healthy individuals walking with a novel bi-linear stiffness ankle-foot orthosis
… providing support and stability about the ankle joint. Passive-dynamic AFOs (PD-AFOs) are broadly designed with a foot plate, a cuff that wraps around the shank, and a strut connecting the foot plate and cuff. A PD-AFO’s strut is the primary contributor to its stiffness properties, which can be …
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Trunk Biomechanical Responses during Sudden Loading
… degrees less trunk flexion, 6.6 Nm less L5/S1 joint moment and 32.0 N less shear force when using staggered stance with right foot forward (the most preferred placement) in comparison to wide stance (the least preferred placement). Asymmetric load releasing position consistently resulted in …
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The Neuromuscular and Mechanical Control of the Knee Joint in Patellofemoral Pain Sufferers
… analysis of the motor unit firing rate and knee joint moment, showed the VM motor units in the non-symptomatic subjects were recruitment at a higher firing rate in the tape condition but interestingly no change in the VL and no change in the symptomatic subjects. Both non- symptomatic and …
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Lower body mechanics of golf swing and its association with maximum clubhead speed in skilled golfers
… (OA)and ranges of the OA of the lower extremity joints (i.e., pelvis, hips, knees, and ankles) during the downswing, and normalized peak resultant joint moments(RJM) of the lower extremity joints (i.e., hips, knees, and ankles)were extracted for a correlation analysis to normalized peak clubhead …
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Biomechanical Outcomes of Distinct TKA Surgical Alignments and Implant Designs
… include the kinematic alignment (KA) and joint line obliquity (JLO) restoration, in contrast to the mechanical alignment (MA) technique that places everyone into the same mold. Additionally, implant designs have progressed to asymmetrical condylar geometry that restrict medial compartment …
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Gait asymmetry and the risk of knee osteoarthritis in post-stroke individuals
… little is known about the nature of knee load/moment patterns in stroke survivors to be able to test this hypothesis and determine the biomechanical risks of chronic stroke survivors developing OA. This is despite the fact that spatiotemporal asymmetry in other conditions (unilateral amputation …
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