Browse through the abstracts, view author details, associated sessions and more. Vote on abstracts to increase their chances of being presented in a session. You need to have an account before you can vote!
This study investigated whether the individual differences in knee extensor fatigue induced by sustained middle-level contraction are explained by one or more indices of muscle fatigue. Twenty-four healthy young men performed a sustained fatiguing contraction to task failure at 40% of maximal volunt...
Golfers can modify the mass and moment of inertia (MoI) of their driver. The influence of these changes on golfers’ unique centre of pressure and centre of gravity movement patterns were investigated. The patterns between the control and High Mass condition showed small differences to the High MoI...
Increased articular contact stress, resulting from joint incongruity following intra-articular fractures of the distal tibia, contributes to the development of post-traumatic osteoarthritis. We are using finite element-computed contact stress to identify at-risk areas of the joint surface for the pu...
Glenohumeral (GH) morphometry vary among populations and the current Total Shoulder Arthroplasty (TSA) implants do not incorporate these features. This study aims to determine the inter-population kinematic variation owing to morphometric changes of a GH surface using OpenSim. Three population-speci...
In soccer and team handball, anterior cruciate ligament injuries often occur during abrupt changes of direction. The present study shows that the sidecutting manoeuvre is performed differently and results in different sagittal plane joint loadings, but no difference in frontal and transverse plane b...
The impact of spasticity on walking is currently unclear. Assessments of spasticity require the assessor to move a limb as fast as possible, with potential discrepancies in testing velocity and range of motion between clinicians, as well as between what is observed during functional activities such ...
Differences in predicted hip joint center (HJC) locations can affect the calculation of lower body dynamics related to daily living. This research compared kinetic output from models using the Seidel and Harrington HJC predictive methods. In normal healthy adults, there were significant differences ...
Previous studies suggest that the maximum weight for overweight children’s backpacks should be less than 10% of their body weight (BW). In this study we aim to analyse the postural adaptations for obese/overweight and healthy-weight students while carrying a backpack or a school trolley with varyi...
This study demonstrates an increased contribution of proximal joints to lower extremity dynamics following exertion.
To improve the methods used to compare density-modulus relationships and material mapping strategies, this study used experimental loading of scapulae within a micro-CT. Experimental boundary conditions (BCs) were replicated in QCT-FEMs using digital volume correlation (DVC), and DVC was used to com...
Recently, we suggested that cross-bridge kinetics and residual force enhancement (RFE) contribute to the stretch-shortening cycle (SSC) effect. Cross-bridge kinetics and RFE are affected by fiber type. Therefore, we examined the influence of fiber type on the SSC effect and RFE. Rabbit psoas and sol...
Musculoskeletal systems (MSS) are dynamically indeterminate. For this reason, static optimization (SO) is commonly used to estimate muscle forces and activations. However, SO minimizes antagonistic coactivation, which may not be physiologically realistic. To address this issue, we developed a novel ...
This abstract presents methodology for modeling the energy storage and return properties of a semi-active variable-stiffness lower-limb prosthesis in the OpenSim musculoskeletal modeling platform. The prosthesis was modeled as a rigid hindfoot with an elastically hinged forefoot; stiffness was varie...
This study was conducted to investigate interaction during turning movement in competitive ballroom dance. Thirteen national high-level competitive ballroom dance couples and the current world competitive ballroom champion couple were participated. Movements were recorded at 240 Hz using two Xsens s...
It was recently reported that statistical parametric mapping (SPM) may be invalid for the analysis of nonuniformly smooth biomechanical data, like high frequency impact forces. The purpose of this study was to test that assertion. Using open-source software we simulated a variety of smooth Gaussian ...
Ankle exoskeleton (exo) optimization typically focusses on steady-state (SS) walking conditions, even though non-steady-state (nSS) walking comprises a large portion of daily locomotion. An improved understanding of how exos impact nSS and SS gait differently may further inform optimal exo design. W...
Many methods are used to quantify knee valgus angle (KVA). However, not all angles used to calculate KVA are equivalent. Four methods of calculating KVA were used on twenty-three athletes during a drop jump using a 10-camera motion capture system. The results showed that using a global reference fra...
Achilles tendon moment arm (ATma) has previously been correlated with walking speed in slower walking older adults who were also heavier than faster walkers. Here we investigate the relationship between ATma and locomotor function in end-stage ankle osteoarthritis (OA) patients. Performance on three...
We used uphill walking to test whether lower-extremity joints, and the major muscle groups spanning them, could alter their mechanical functions. We found that the hip, ankle, and knee decreased spring- and damper-like behavior and increased motor-like behavior during uphill walking. These joint-lev...
Contractility increased following both aerobic and resistance exercise training. Resistance training resulted in increases in maximum force and velocity, aerobic training led to greater increases in shortening velocity, while combination training resulted in increases in both maximal force and veloc...
Knee osteoarthritis decreases the ability to perform many daily activities such as walking. Thus, individuals adapt their initial movement strategy to compensate this deficit. One such compensatory strategy is to increase the foot progression angle. In order to study its impact on the lower limb joi...
The purpose of this study was to test whether the lowering of swimmer’s body observed during 200-m maximal swimming is associated with inspiratory muscle fatigue. Ten well-trained swimmers performed maximal 200-m front crawl swimming in 25-m pool. A 3-D underwater motion capture system was used fo...
Inter-limb leg stiffness changes during weight transfer of gait were used to uncover the body support strategies of children with hemiplegic cerebral palsy (HCP). Compared to controls, children with HCP showed greater stiffness sharing on the sound side both during weight release and weight acceptan...
Hip-related pain can frequently affect young athletic individuals, including football players. To date, no studies have investigated hip biomechanics during running in football players with hip-related pain. The primary aim of this study was to evaluate sagittal and frontal plane hip kinematics and ...
A number of recent studies have shown that the temporal structure of pacing signals greatly influences the gait dynamics observed when coordinating with those signals. Typically, those studies have focused on autocorrelation structure (ACF). The current study builds on that work by addressing how th...
Vector coding was applied to examine changes in pelvis-knee coordination during a lateral step-down (LSD) performed at three speeds. Slower task performance led to increased pelvis-knee coupling and may indicate that a slower LSD is more challenging to perform than a faster LSD.
Performance on movement screens can change with knowledge of scoring criteria. The Landing Error Scoring System (LESS) is often used to identify high injury-risk biomechanics and athletes. We compared LESS scores and risk categorisation before and after the provision of scoring criteria and informat...
This study examined the effects of osteoarthritis of the trailing knee on frontal and transverse plane moments during a golf swing. It showed that osteoarthritis reduces the moments about the affected knee and increases the loading on other joints.
Strawberry pickers may be at high risk of low back disorders (LBDs) due to sustained lumbar flexion during bent posture. The aims of this study were to conduct motion analysis experiments of simulated harvesting movements and inverse dynamic analyses of lumbar spine loads. Results indicate higher L5...
Kinematics of the prosthetic tibiotalar joint in total ankle replacement (TAR) patients have yet to be measured using dual fluoroscopy (DF). These data could improve our clinical understanding of failures in TAR patients, leading to better surgical approaches and implant designs. With dual fluorosco...
Sign in to ORCID