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Our aim is to create a biologically inspired control architecture for human gait. This work combines reflexes with feedforward input from the spine. Reflexes were based on Geyer and Herr [1], except for the vastus, where a stretch reflex was modelled. Additionally, a spinal architecture with a rhyth...
The purpose of this pilot study was to determine differences in gait in cancer survivors with and without neuropathy and healthy controls. Nine cancer survivors with neuropathy, 8 without neuropathy, and 12 healthy controls walked at their normal pace across a walkway. Gait speed, step length, and s...
Biomechanical changes as a result of minimal running have been studied in different aspects but not gender. Thus, the objective of this pilot study was to examine: a) gender interest and participation in this training approach; b) gender responses to a 12-week barefoot running training. Female runne...
In this work, a device that can create unstable lifting loads was designed and assessed. The device can create up to 64 N of unexpected load within a crate that is being lifted. This device will be used in the future to examine the effects of such unexpected loads on lumbar lifting dynamics.
Maintaining joint stability is crucial for proper simulation of glenohumeral joint kinematics in the cadaveric setting. This study uses updated methodology to isolate the native intraarticular pressure’s role in glenohumeral joint stability.
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We proposed a ground reaction force (GRF) estimation method from the input of RGB video capturing human walking. To convert kinematic motion data from a video into kinetic GRF data, we used a spring-loaded inverted pendulum (SLIP) model that reflects the relationship between the center of mass (CoM)...
Older endurance runners did not display smaller hip kinetics or larger ankle kinetics compared to older non-runners (i.e. a history of running did not mitigate age-related differences in gait kinetics) which may suggest that age-related differences in gait kinetics are a normal and healthy part of n...
This study examined the effect of a concurrent cognitive task on gait termination in older adults. Nine older adults walked and stepped down a curb, and stopped immediately after stepping down if a light stimulus was activated. Trials were performed with and without a concurrent cognitive task. We f...
When stepping over obstacles, diverted gaze may reduce the ability to gather visual information and impair performance. The study examined how diverted gaze affected young versus older adults. Participants completed two tasks (standing, stepping over an obstacle) with a simple reaction time (RT) tas...
While steady-state gait is relatively well-understood, transient manoeuvres have received far less dedicated research. These motions are difficult to study because they can be dangerous when executed at high speed. Additionally, differing points of initiation, animal morphologies and environments cr...
Conventional exoskeleton designs for improving human ‘gas-mileage’ rely on motors to transfer net energy from machine to user with the intention of reducing net muscle work and thus, heat loss. In contrast, our design philosophy is that unpowered or minimally powered exoskeletons offer a streaml...
Glenohumeral stability is maintained by articular geometry, capsuloligamentous restraint, and rotator cuff muscle activation. Many rotator cuff force profiles have been employed in the cadaveric setting to maintain stability. This study aims to compare the glenohumeral joint stability afforded by co...
Functional Movement Screen (abbreviation: FMS) has been widely used to assess physical asymmetry for athletes. This study aimed to assess the FMS score and compare the differences between volleyball and track and field athletes. The results were found that more volleyball players got a lower score i...
Differences in running biomechanics between males and females and between stable and unstable surfaces may have implications for overuse injury. The purpose of this study was to determine whether differences in biomechanical patterns between running surfaces depend on sex. A Principal Components Ana...
Postural control and balance are challenging tasks for lower limb prosthesis users due to the absence of somatosensory data from the amputated side and limitation of a prosthetic device in comparison to the natural lower limb. A study was developed to evaluate the standing balance of above-knee pros...
Minimal and partial minimal running shoes were both developed to mimic barefoot running. However, different kinematics and kinetics have been reported between these shoes. The purpose of this study was to determine whether peak ground reaction forces (GRFs) and loadrates (LR) during early stance dif...
Gait phase recognition is of great importance to develop accurate timing feedback for exoskeleton control. In order for a powered exoskeleton to determine and provide proper assistance to the wearer during gait, the user’s current gait phase must first be identified accurately. Deep convolutional ...
Age-related differences in stride length variability during an incremental walk-to-run transition (WRT) treadmill protocol revealed that walking may only mature by 13 years old and running may not mature until 15 years old. When analysing how gait patterns are regulated in response to increasing gai...
This study compares the running mechanics of male and female runners. Motion analysis data and plantar pressure data were collected from healthy runners. Statistical analysis showed no significant differences in joint coordination variability or kinetics between healthy male and female runners.
We developed a novel load carriage system that allows weight carried in a backpack to oscillate in the medial-lateral direction while simultaneously generating electricity from the carried weight’s oscillations. We use the energy harvesting capabilities of the device to control carried mass oscill...
Dr. Finley’s research focuses on the neuromechanics and control of healthy and pathological gait. He was the first to demonstrate that learned behaviours observed during adaptation to walking on a split belt treadmill are likely driven by a preference for economical gaits. Here he will present rec...
Subscapularis repair in Reverse Shoulder Arthroplasty is controversial and recent studies showed that it can decrease post-operative clinical scores when used with lateralized glenospheres. In this study a musculoskeletal model was used to investigate how glenosphere lateralization and subscapularis...
Is it your mind or your hand that grasps an idea? Neural and behavioural evidence from the cognitive sciences suggests it may be both due to a theorized bidirectional relationship between cognitive processes and motor control. Yet, this hypothesis has not been approached from a neuromechanical persp...
The effect of a secondary blocking action on the primary long snapping action was tested in this study. Comparison of reaction forces (RFs) and linear impulse revealed that players increased posterior RF while maintaining resultant RF with a secondary blocking action. A larger posterior linear impul...
Grounded running is slow running without a flight phase. When young, athletic men changed their spontaneous running pattern – containing a flight phase – to grounded running, musculoskeletal and impact loading decreased. However, no information is available for runners who spontaneously perform ...
The hand and wrist represent one of the most challenging structures in the study of biomechanics, as well as in the evaluation of many biomechanical principles. Hand and wrist biomechanics has been somewhat underdeveloped in comparison to mainstream biomechanics research over the past century. While...
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