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Slip-induced falls are a major public health concern as approximately 25% of older adults who fall will fracture their hip [1]. There is a paucity of research investigating the upper extremity responses to a slip. The purpose of the current study was to characterize the frontal and sagittal excursio...
We developed models to predict peak vertical ground reaction force (vGRF), vertical impulse, and contact time (tc) from running speed and a waist-mounted accelerometer. 25 collegiate cross country athletes ran at 3.8-5.4 m/s while we measured vGRF and sacral accelerations. We low-pass filtered accel...
Developing a method to quantify and improve the “fit” of a prosthetic socket would presumably enhance the function of a person with a transfemoral amputation (TFA). Previous studies have found a correlation between increased socket pistoning, the movement of a prosthetic socket relative to the r...
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 purpose of this study was to measure the effects of a menthol-based topical analgesic on delayed onset muscle soreness (DOMS) induced changes to running biomechanics and pain. We measured perceived pain utilizing a comparative pain scale (CPS), and pain pressure threshold (PPT). Kinematics were ...
The in vivo knee joint kinematics of five different knee implant designs were analysed during level walking and stair descent using moving videofluoroscopy. Even though individual motion characteristics were observed between subjects, especially in less constrained designs, different implant feature...
A human activity recognition system using wearable sensor data that can detect dance specific activities (jumping and leg lifting tasks) and quality of movement, such as ground reaction force was developed, using a machine learning approach. This system allows for the measurement of specific trainin...
Wearable sensors, which can be attached to the body for extended periods of time in real-world conditions, provide exciting new opportunities for biomechanics researchers to assess human movement. This session will present various research opportunities and challenges afforded by wearable technology...
Wearables enable continuous monitoring of gait in real-world environments over an extended period of time (e.g., week). Previous findings show that in-lab and real-world measures differ; however, it is not fully clear why. This presentation will describe these gaps and illustrate how metrics based o...
Previous reports suggest males have greater force steadiness compared to females [1]. This study showed females had greater variability in motor unit discharge rate and reduced force steadiness compared to males. The sex differences may be due to inherent biomechanical differences in tendon complian...
Frozen and thinned bovine pericardium (BP) is a candidate transcatheter aortic valve (TAV) leaflet biomaterial for smaller-profile devices due to their reduced thickness now, however, their mechanical and structural properties still need to be to be fully test. In order to better understand their me...
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.
The mechanisms by which fear of falling (FoF) increases fall risk are not well understood. While increased arousal and anxiety in response to perceived postural threat is known to affect postural control during standing and following non-stepping perturbations, the effect on stepping responses remai...
Gait is emerging as a powerful tool to detect early disease and monitor progression across a number of diseases. Typically quantitative gait assessment has been limited to specialised laboratory facilities. However, measuring gait in home and community settings may provide a more accurate reflection...
Motion capture systems are useful tools for assessing different aspects of human movement. 3D systems are the preferred method as they utilize multiple cameras to gather accurate and reliable measurements. They can be cost-prohibitive and complex to use. In the absence of a 3D system, a 2D system ca...
A lot of wearable sensor technologies have been developed and applied in sports. Many sports teams notice that wearable technology is helpful for improving performance, reducing injuries and enhancing fan experience. Wearables will more develop along with sensor technology. It is also important to p...
We previously reported that a longer knee extensor moment arm (MA) is associated with better sprint performance because of increase in knee extensor torque during sprinting. In contrast, a shorter MA is a useful in decreasing energy consumption in muscles, potentially by mitigating the length change...
We think of agility as the ability to move at fast speeds while executing motor control strategies that redirect body motion and reposition limbs. Jumping to high heights and to long distances correlates with other aspects of agility, such as maximum sprint speeds. To gain intuition on how the legs ...
This study dealt with temperature investigation during drilling into the artificial bone. The main aim was to develop suitable method for experimental temperature measurement. The experiments were realized with several different dental drills, and different drilling conditions (speed, cooling etc.).
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...
The present study compared the effect of tail/head wind on two reference jumps with different aerodynamic properties (CL and CD) during the flight phase. The computer simulation showed that the wind scenarios used in the present study had a reverse effect on the jumps. Proper wind conditions at the ...
The use of signal classification techniques to accurately classify¶ activities of daily living has gained importance in assistive¶ technologies. The aim of this paper was to implement different¶ classification techniques to identify user intent from inertial¶ measurement units (IMUs) attached to...
Wearable inertial sensors enable the measurement of human movement in non-laboratory environments. Because many sports movements cannot be accurately replicated inside a laboratory, inertial sensors (also known as inertial measurement units or IMUs) are one of the best tools for quantifying some of ...
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