Abstract Archive

We are hypothesizing that when humans walk on the sloped surfaces, the foot placement is dependent on the slope angle and walking speed. In this paper, to have a better understanding of the relationship between the step length to the slope angle and walking speed, we performed a statistical analysis...

Ankle plantar flexor muscles are significant contributors of locomotor performance and their force-velocity operating region is influenced by a ‘gearing’ mechanism of the foot-ankle system. The aim of this study was to determine whether anatomical variations in foot morphology can influence sole...

The purpose of this study was to determine the association between corticomotor excitability (CME) of the gluteus maximus (GM) and the average hip extensor moment during single-leg drop jump. Thirty-two healthy individuals (17 females, 15 males) participated. The slope of the input-output curve obta...

Using our lab’s biplane fluoroscopy system, we collected data on eight bone phantoms to assess the accuracy of our custom bead-based and model-based tracking algorithms. Custom rigs were constructed to apply uniaxial rotation and translation to these bone phantoms. External potentiometer measureme...

Dr. Wall-Scheffler is a biological anthropologist, who has made important contributions to the areas of locomotor evolution and behavioural ecology. Here she will discuss her work on how energy optimization shapes locomotion in reproductive females and its implications for human evolution.

A previous study determined optimised glenosphere placement on reverse total shoulder arthroplasty (RTSA) in order to improve impingement free range of motion. The current study has evaluated the effect of this optimised placement on micromotion at the bone-implant interface using a finite element s...

PURPOSE: To determine whether compression garments are more effective in facilitating recovery. METHODS: 15 male college student participated in this study. The subjects performed experimental trials with a compression garment (CG) or without a CG (CON) during the recovery period after the deep squa...

Modern wearable fitness trackers contain on-device inertial measurement units (IMUs) that measure user activity metrics. These trackers, however, typically require access to a GPS-enabled device (such as a smartphone) to measure speed and distance. This presents a problem when GPS signal is sparse o...

The purpose of this study was to determine the validity and reliability of a clinic-based treadmill with integrated markerless motion capture. Hip and knee angular measures had moderate to high between-day reliability. However, caution should be exhibited interpreting joint angles from this clinic-b...

This study seeks to investigate the effect of verbal instruction (VI) on muscle activity, with and without muscular pre-exhaustion (PE) on the temporal domain of the surface electromyographic activity (sEMG). Given that PE and VI seem to modify the muscle sEMG, twenty men performed four randomized-s...

Efficiency plateaus during incline walking at slopes above 20%, and is equal to that of concentric muscle activity. We believe that a non-linear increase in leg swing naturally results in the necessary increase in knee angle at heel strike to lift the body as slope increases and minimizes leg swing ...

Acquiring the shape of foot plantar surface is critical to perform anatomical measurements, for objective diagnosis of foot morphological alterations and to design custom orthotics and footwear. Whereas laser scanners are currently the gold-standard for accurate 3D digitization of body parts, these ...

To quantify functional recovery of total hip replacement patients following surgery, vertical ground reaction forces (vGRF: “return to full weight bearing”) may be used. However, its association with hip contact forces remains unclear. In this work it is shown that the vGRF impulse is the most r...