Abstract Archive

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To quantify balance control during walking, different stability outcome measured based on the (extrapolated) centre of mass ((X)CoM), base of support (BoS) and centre of pressure (CoP) have been proposed. Healthy controls (n=20) and patients with balance and gait problems (n=45) performed two times ...

Three-dimensional spring-mass models can be used to study the dynamics and control of running. Cutting manoeuvres are used by running humans to change direction and are of interest because of their relationship to performance and injury. Here we investigate the utility of a 3D spring-mass model for ...

Pressure mapping sensors provide portability but to draw valid conclusions their accuracy compared to a gold standard force platform must be established. This study compared original Tekscan readings and those scaled to a neural network (NN) to force plate values obtained during walking and jogging....

The purpose of this study is to explore how individuals with transtibial amputation walk with vs. without a toe joint in their prosthetic foot, as well as to quantify how toe joint stiffness affects gait biomechanics and metabolic cost. We created a custom foot prosthesis that enables us to systemat...

The aim of this paper is to discuss the challenges and possible technological solutions for gait event detections and gait speed quantification in real world scenarios, including controlled, semi-structured and unsupervised conditions.

The Concurrent Optimization of Muscle Activations and Kinematics (COMAK) simulation routine to predict knee joint mechanics during movement was implemented in OpenSim. We will present the underlying theory of COMAK and the relevant sensitivity analyses and in vivo validation studies.

The windlass and the arch-spring are two fundamental models that describe foot function during locomotion. However, the windlass mechanism requires that the plantar fascia is stiff and doesn’t strain, while the arch-spring describes a straining tissue. To examine how these two mechanisms function ...

We used two different models to estimate muscle activations during a static and dynamic task involving the ankle. It was found that a multi-objective optimization (MOO) model that included both muscle activation and stability terms better matched experimental activations than a single objective opti...

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Neck flexion, which is associated with neck pain development, is typically observed when an individual uses a smartphone. The purpose of this study was to determine if clinical measures and neck kinematics during smartphone use were different between those who do and do not develop neck and upper ba...

Diabetes is a worldwide epidemic that often results in diabetic peripheral neuropathy (DPN). DPN may lead to reduced plantar pressure variability, and this lower variability may cause localized tissue loading and subsequent foot ulceration. The purpose of this study was to use anesthetize the planta...

The purpose of this study was to investigate the associations between kinematic compensations during the single-leg squat (SLS) and stride knee kinematics during the baseball pitch in adolescent baseball pitchers. A secondary purpose was to determine whether the SLS may be used as a lower extremity ...

Changes in running mechanics during high-intensity running to fatigue remain largely unknown. The purpose of this study was to investigate the changes in kinematics and kinetics during a high-intensity treadmill run to exhaustion. Sixteen national standard male and female middle-distance runners per...

The purpose of this study was to compare the differences in the dominant and nondominant shoulder and trunk range of motion in young female volleyball players. The subjects were 16 healthy female high school volleyball players, and the goniometer was used to measure the shoulder and trunk range of m...

Sensitivity of the force in the anterior cruciate ligament (ACL) to quadriceps (Q), lateral and medial hamstrings (LH and MH) forces during drop landing was evaluated using a finite element (FE) model of the knee.

A 5-finger myoelectric hand prosthesis of 7 different hand postures was successfully controlled using ANN with an armband-type multi-channel EMG module. The classification accuracy was evaluated for 10 normal volunteers, considering the independence of the EMG feature groups, donning and doffing tra...

Our aim was to provide evidence that the Landing Error Scoring System (LESS) – an injury-risk screening tool – can be automated using deep-learning based computer vision combined with machine learning methods, and compare LESS prediction between cropping and machine learning methods. 2D videos f...

Prospective authors are invited to submit manuscripts reporting original unpublished research and recent developments in the topics related to the conference. It is required that the manuscript follows the standard IEEE camera-ready format (IEEE standard format, double column,  10-point font). ...

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In January 2005, I came to the University of Waterloo (and Canada) with little appreciation for the breadth and depth of biomechanics research in Canada. Over the last nearly decade and a half, I have seen this excellence persist and expand in dramatic ways. Most markedly, a transition from historic...

This keynote presentation will kick off this year's Teaching Symposium, a long-standing component of the annual American Society of Biomechanics meeting. This presentation will provide attendees with background on the benefits of engaging learners by integrating active learning techniques (ALTs) int...

In the present study, five types of tendons were treated with different sterilization methods. Cyclic testing is used to determine the mechanical parameters that are evaluated after the comparison. On the basis of result, the vulnerability of freezing and gamma irradiation of TA and PL was less than...

This study aimed to look for the effect on posture control function of leg immersion prior to standstill standing position in healthy young Japanese female (n=12). Postural sway was evaluated by means of tracing fluctuation of COP (center of pressure) in pre and post lower legs-bathing with tap-wate...

Foot stiffness plays an important role in its mechanical function. The medial longitudinal arch (MLA) is thought to be the primary determinant of foot stiffness. Cadaveric studies bisecting the plantar fascia that maintains the MLA found that stiffness decreased by 25% [1,2]. Mathematical and physic...

Basal myosin oscillation is barely dependent on actomyosin cortical tension, indicating that oscillation is mainly from biochemical reaction. During basal myosin oscillation, Rho1 proteins and Rho1 activity are mainly distributed and enriched at and near basal junction and the major control of basal...

Ultrasound shear wave velocity (SWV) is used to assess material properties of skeletal muscle, such as stiffness. Because specific tension and normalized short-range stiffness of muscle tissue vary linearly with activation and in a similar fashion across muscles with different architectures, we expe...