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Recently produced vehicles are equipped with functions for driver safety. The Lane Keeping Assistance (LKA) system prevents the vehicle from leaving the lane. However, the operation of the LKA system affects the driving comfort of the driver. In this study, we investigated the relationship between r...
The volume of intra-muscular fluid might play an important role in the contribution of intramuscular connective tissue to muscle force development at longer muscle lengths. Additionally, prolonged running may affect intra-muscular fluid volumes by amplified blood flow or dehydration. Therefore, we a...
Trunk co-activity can indicate coordination and stability. However, historical agonist-antagonist approaches to co-activity can over-simplify multi-planar, functional, and otherwise complex tasks. Here we present a flexible co-activity measure that expands the two-muscle case of co-activity to multi...
To our knowledge, this is the first mapping study investigating cutaneous thermal thresholds of the human torso. We found females to be more sensitive than males, and specific sensitive and insensitive locations, regardless of gender or the temperature protocol used.
Lately there has been some frustration with academic publishing, highlighted by Europe's "Plan S" and University of California libraries considering to unsubscribe from all Elsevier journals. With the abilities of the internet, growing presence of science on social media, and the increased use of pr...
Double-bundle (DB) anterior cruciate ligament (ACL) reconstruction is thought to improve kinematic outcomes after ACL reconstruction. Using a dynamic stereo X-ray (DSX) system, the side-to-side (SS) kinematic differences between 29 single bundle (SB) and 28 DB ACL reconstructed participants during d...
Toe deformities and dysfunction of the tibialis posterior muscle is common among patients with rheumatoid arthritis. The aim of this study was to investigate potential muscle compensation patterns when the tibialis posterior muscle starts to be less active. Results of the study show that flexor digi...
Prolonged exposure to optical flow perturbations designed to elicit the visual perception of instability during walking in the safety of virtual reality may enforce task-specific, reactive balance control in older adults with potentially favorable aftereffects. This proof of concept study alludes to...
A brace limiting knee flexion was used to isolate the contributions of stiff-knee gait on contralateral limb loading during walking. Our results suggest that a fixed knee condition during stiff-knee gait does not increase contralateral lower limb joint loading, supported by observations of reduced p...
Regular papers should present novel perspectives within the general scope of the conference. Short papers (Work-in-Progress) are an opportunity to present preliminary or interim results. Posters are intended for ongoing research projects, concrete realizations, or industrial applications/projects pr...
All proposals must be prepared for anonymous review, i.e., abstracts must not include any information that could indicate the identity of the author. Proposals that have not been prepared for anonymous review will not be considered, please.
The location of the body’s centre of mass (COM) during running can be useful to determine the influence of lower extremity geometry on the ground reaction force (GRF). A full-body marker set is typically used to calculate the COM, but setup can be cumbersome for large data collections. The use of ...
Foot progression angle (FPA) is the angle of the foot when in contact with the ground, relative to the direction of walking. Modification of FPA is a possible management strategy for knee osteoarthritis; however, measurement of FPA is typically confined to the lab environment. We have tested the val...
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Canada has a long standing history of producing an impressive depth and breadth of highly impactful biomechanics research that has influenced and led our field worldwide. Many of these major researchers have relentlessly championed for biomechanics, and demonstrated their commitment to fostering a s...
The maximum energy equivalent strain (EEQ) produced during running was positively associated with bone changes to distal tibia region that occurred during training for a first marathon. However, mean EEQ showed negative effects. Additionally, age, gender, height, and mass contributed significantly t...
Healthy tibio-femoral kinematics are controversially discussed in the literature. In this study, 10 healthy subjects were assessed throughout dynamic functional gait activities using a moving fluoroscope to establish physiological healthy knee kinematics. Significantly larger range of anterior-poste...
In order to analyse the severity of sports impacts, time-frequency analysis of tibial acceleration can be performed with wavelet transform. However, a prerequisite to conduct such analysis is the selection of the mother wavelet. This study compared a set of 65 different wavelets on 2,240 tibial acce...
Bilateral cervical facet dislocation (BFD) with facet fracture (Fx) is a devastating neck injury that is rarely recreated experimentally. Neck muscle activation increases intervertebral shear and compression forces during cervical trauma, but the role of these combined loads during BFD is understudi...
Falling of the elderly has become an important issue in today's aging society. The key task to prevent falling is the exact detection of a falling event in Activities of Daily Living (ADL). However, certain ADL situations are difficult to classify due to motion and acceleration values of the fall si...
Range of motion (ROM) impairments occur in up to 77% of breast cancer survivors (BCS) [1]. This study defined the influence of time from treatment on ROM, specifically during activities of daily living (ADLs). Kinematic data of the torso and upper limbs were collected during maximal ROM and ADL (for...
Running-specific leg prostheses (RSPs) are made of carbon fiber, mimic the spring-like function of tendons, and allow elastic energy storage and return during level-ground steady-speed running; however, unlike biological legs, passive-elastic RSPs cannot generate mechanical power anew, vary stiffnes...
The current study aimed to develop a statistical shape model (SSM) for reconstruction of subject-specific three-dimensional (3D) knee model with multiple fluoroscopic images, and to evaluate via computer simulation its theoretical accuracy and determine the minimum number of images needed for an acc...
This study investigated trunk co-contraction during prolonged standing in women with small and large chest sizes. Higher levels of trunk co-contraction were found for the large chest size group. Global flexor-extensors, latissimus dorsi, and the erector spinae (T4, T9, L1 levels) displayed higher co...
A methodology to decompose three-dimensional (3D) muscle geometries in lines of action (or fibres) is presented and applied to models of hip-spanning muscles segmented from magnetic resonance imaging (MRI). Kinematic simulations of functional movements of the hip joint were performed and the fibresâ...
Humans rapidly adapt gait to minimize energetic cost, but no direct metabolic sensors can account for this. Dynamic walking principles and tibialis anterior (TA) muscle activation profiles suggest it may be used in indirect sensing of energetic losses during the collisional phase of walking. Prelimi...
This study investigated the influence of joint angular velocity on time to maximum available torque when contracting from rest. Involuntary contractions were evoked at different velocities, with and without pre-load. In contractions without pre-load, time from rest to 75% of pre-loaded torque got sh...
Recent studies demonstrate that N2A titin binds strongly to actin in vitro in the presence of calcium. This interaction should decrease titin length, increase titin stiffness, and produce a dependence of mechanical behavior on length at the time of activation. These properties are absent in skeletal...
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