A5083507172- Muscle activation and electromyography studies
- Musculoskeletal pain and rehabilitation
- Cerebral Palsy and Movement Disorders
- Balance, Gait, and Falls Prevention
- Spinal Cord Injury Research
- Motor Control and Adaptation
- Stroke Rehabilitation and Recovery
- Lower Extremity Biomechanics and Pathologies
- Transcranial Magnetic Stimulation Studies
- Shoulder Injury and Treatment
- Pain Mechanisms and Treatments
- Foot and Ankle Surgery
- Veterinary Orthopedics and Neurology
- Botulinum Toxin and Related Neurological Disorders
- Ergonomics and Musculoskeletal Disorders
- Sports injuries and prevention
- Sports Performance and Training
- Vestibular and auditory disorders
- Advanced Sensor and Energy Harvesting Materials
- Ophthalmology and Eye Disorders
- Prosthetics and Rehabilitation Robotics
- Nerve Injury and Rehabilitation
- Zebrafish Biomedical Research Applications
- Tactile and Sensory Interactions
- Non-Invasive Vital Sign Monitoring
Centre for Interdisciplinary Research in Rehabilitation
2016-2025
Université Laval
2016-2025
Centre intégré universitaire de santé et de services sociaux de la Capitale-Nationale
2016-2025
Centre Intégré Universitaire de Santé et de Services Sociaux du Centre-Sud-de-l'Île-de-Montréal
2016-2024
Centre Intégré Universitaire de Santé et de Services Sociaux du Saguenay–Lac-Saint-Jean
2016-2024
McGill University
1992-2020
Université de Montréal
1998-2020
Centres Intégré Universitaires de Santé et de Services Sociaux
2017-2020
Quebec Rehabilitation Research Network
2020
Pain and Rehabilitation Medicine
2017
The goal of this study was to evaluate the role hindpaw cutaneous feedback in control locomotion, by cutting some (in one cat) or all 2 cats) nerves bilaterally at ankle level. Kinematic and electromyographic (EMG) recordings were obtained before for several weeks after denervation during level incline (15° up down) treadmill walking. Ladder walking ground reaction forces also documented sporadically. Early (1–3 days), cats could not walk across a ladder, although deficits small Increased...
Design Single-blind randomised clinical trial. Objective To compare the effects of three 8-week rehabilitation programmes on symptoms and functional limitations runners with patellofemoral pain (PFP). Methods Sixty-nine PFP were randomly assigned to one intervention groups: (1) education management training modifications (education); (2) exercise programme in addition (exercises); (3) gait retraining (gait retraining). Symptoms assessed at baseline (T 0 ), after 4, 8 20 weeks 4 , T ) using...
The goal of these experiments was to define the contribution hindpaw cutaneous inputs in expression spinal locomotion cats. In 3 cats, some ( n = 1) or all 2) nerves were cut bilaterally at ankle level before spinalization. This denervation caused small deficits that gradually compensated as reported companion study. After spinalization, completely denervated cats never recovered plantar foot placement weight bearing hindquarters despite more than 35 days treadmill training. Although normal...
Many patients are in pain when they receive gait training during rehabilitation. Based on animal studies, it has been proposed that central sensitization associated to nociception (maladaptive plasticity) and plasticity related the sensorimotor learning (adaptive share similar neural mechanisms compete with each other. The aim of this study was evaluate whether experimental tonic influences motor (acquisition next-day retention) a new locomotor task. Thirty healthy human subjects performed...
Background: Workplace adaptation is the preferred method of intervention to diminish risk factors associated with development work-related shoulder disorders. However, majority workplace assessments performed are subjective (e.g., questionnaires). Quantitative required support adaptations. The aims this study assess concurrent validity inertial measurement units (IMUs; MVN, Xsens) in comparison a motion capture system (Vicon) during lifting tasks, and establish discriminative wireless...
Purpose: This proof of concept study tested the ability a dual task walking protocol using recently developed avatar-based virtual reality (VR) platform to detect differences between military personnel post mild traumatic brain injury (mTBI) and healthy controls.Methods: The VR coordinated motion capture, an interaction rendering system, projection system present first (participant-controlled) third person avatars within context specific patrol scene. A divided attention was also added....
The present study used coherence and directionality analyses to explore whether the motor cortex contributes plantar flexor muscle activity during stance phase push-off gait. Subjects walked on a treadmill, while EEG over leg motorcortex area EMG from medial gastrocnemius soleus muscles was recorded. Corticomuscular intermuscular were calculated pair-wise recordings. Significant EEG-EMG EMG-EMG in beta gamma frequency bands found throughout with largest towards push-off. Analysis of revealed...
Despite the accessibility of several step count measurement systems, accuracy in real environments remains a major challenge. Microelectromechanical systems and pressure sensors seem to present potential solution for accuracy. The purpose this study was equip an insole with test novel potentially more accurate method detecting steps. Methods: Five force-sensitive resistors (FSR) were integrated under heel, first, third, fifth metatarsal heads great toe. This system tested twelve healthy...
Background: Exoskeletons are used in rehabilitation centers for people with spinal cord injuries (SCI) due to the potential benefits they offer locomotor rehabilitation. The acceptability of exoskeletons is crucial promote and ensure a successful implementation this technology. objective was explore overground wearable powered exoskeleton among SCI. Methods: Fourteen individuals SCI (9 men, mean [SD] age 47 years [14.8], majority traumatic thoracic lesion (T6–T12)) who had utilized an Canada...
Pharmacological agents have been shown to be capable of inducing a pattern rhythmic activity recorded in muscle nerves or motoneurons paralyzed spinal cats that closely resembles the locomotor seen intact cats. Further work, using intraperitoneal intrathecal injections, suggests different neurotransmitters may involved various aspects control, e.g., initiation and modulation pattern. Although precursors, agonists themselves several systems investigated (noradrenergic, dopaminergic,...
After lateral gastrocnemius-soleus (LGS) nerve section in intact cats, a rapid locomotor compensation involving synergistic muscles occurs and is accompanied by spinal reflex changes. Only some of these changes are maintained after acute spinalization, indicating the involvement descending pathways functional recovery. Here, we address whether development adaptive dependent on pathways. The left LGS was cut three chronic cats. Combined kinematics electromyographic (EMG) recordings were...
The control of human walking can be temporarily modified by applying forces to the leg. To study neural mechanisms underlying this adaptive capacity, a device delivering controlled and high-velocity displacements ankle was designed. A new solution, involving closed circuit hydraulic system composed two cylinders (master-slave) mutually connected hoses an electric motor preferred over classical mechanical/electrical approaches. slave cylinder delivers desired torques using light weight,...
Human locomotion results from interactions between feedforward (central commands voluntary and automatic drive) feedback (peripheral sensory inputs) mechanisms. Recent studies have shown that can be adapted when an external force is applied to the lower limb. To better understand neural control of this adaptation, present study investigated gait modifications resulting exposure a position-dependent field. Ten subjects walked on treadmill before, during, after field generated by elastic...
Most patients receiving intensive rehabilitation to improve their upper limb function experience pain. Despite this, the impact of pain on ability learn a specific motor task is still unknown. The aim this study was determine whether presence experimental tonic interferes with acquisition and retention stages learning associated training in reaching task. Twenty-nine healthy subjects were randomized either Control or Pain Group (receiving topical capsaicin cream arm during Day 1). On two...