A5034305207- Muscle activation and electromyography studies
- Sports injuries and prevention
- Balance, Gait, and Falls Prevention
- Cerebral Palsy and Movement Disorders
- Lower Extremity Biomechanics and Pathologies
- Sports Performance and Training
- Prosthetics and Rehabilitation Robotics
- Motor Control and Adaptation
- Stroke Rehabilitation and Recovery
- Effects of Vibration on Health
- Foot and Ankle Surgery
- Diabetic Foot Ulcer Assessment and Management
- Spinal Cord Injury Research
- Musculoskeletal pain and rehabilitation
- Multiple Sclerosis Research Studies
- Tendon Structure and Treatment
- Scoliosis diagnosis and treatment
- Orthopedic Surgery and Rehabilitation
- Sports Dynamics and Biomechanics
- Shoulder Injury and Treatment
- Peripheral Artery Disease Management
- Transcranial Magnetic Stimulation Studies
- Textile materials and evaluations
- Peripheral Nerve Disorders
- EEG and Brain-Computer Interfaces
Laboratoire d'Automatique, de Mécanique et d'Informatique Industrielles et Humaines
2015-2025
Centre National de la Recherche Scientifique
2015-2025
Université Polytechnique Hauts-de-France
2015-2025
Université Lille Nord de France
2009-2023
Université de Montréal
2023
Institut National des Sciences Appliquées de Rennes
2021
INSA Hauts-de-France
2021
Université de Lille
2010-2019
Université de Bourgogne
2005-2009
Inserm
2005-2009
To obtain a better understanding of the adaptations human tendon to chronic overloading, we examined relationships between these and changes in muscle structure function. Fifteen healthy male subjects (20+/-2 yr) underwent 9 wk knee extension resistance training. Patellar stiffness modulus were assessed with ultrasonography, cross-sectional area (CSA) was determined along entire length by using magnetic resonance imaging. In quadriceps muscles, architecture volume measurements combined...
The effect of aging on mechanical and electromyographic characteristics ankle joint muscles was investigated in 11 young (mean age 24 years) 12 elderly 77 males. Maximal submaximal isometric voluntary torques were measured during plantarflexion dorsiflexion. Electromyographic activities triceps surae tibialis anterior recorded. group developed equal maximal dorsiflexion (42 vs 45 N.m, p >.05), but plantarflexion, the weaker (80 132 <.001) presented a decreased twitch amplitude (11 16 N.m)...
Abstract The aim of this study was to assess, via an electromyographic (EMG) biofeedback method, the mechanical contribution both agonist and antagonist muscles during maximal voluntary contraction (MVC). We compared original method with MVC–EMGmax ratio torque/EMG relationship which are commonly used estimate torque. plantarflexion (PF) dorsiflexion (DF) MVCs were measured simultaneously EMG activity triceps surae (TS) tibialis anterior in 15 young adults (mean age 23 years). Antagonist...
During maximal contractions, the sum of forces exerted by homonymous muscles unilaterally is typically higher than same bilaterally. However, underlying mechanism(s) this phenomenon, which known as bilateral strength deficit, remain equivocal. One potential factor that has received minimal attention contribution body adjustments to and unilateral force production. The purpose study was evaluate plantar-flexors in an innovative dynamometer permitted influence torque from be adapted....
The imposing mass of the trunk in relation to whole body has an important impact on human motion. objective this study is determine influence trunk's natural inclination--forward (FW) or backward (BW) with respect vertical--on kinematics and stance limb kinetics during gait initiation.Twenty-five healthy males were divided based their inclination (FW BW) initiation. Instantaneous speed was calculated at center first heel strike. antero-posterior impulse by integrating ground reaction force...
The aim of this study was to assess, via an EMG bio‐feedback method, the ankle joint angle effect on agonist and antagonist torques in plantar‐ (PF) dorsi‐flexion (DF). isometric PF DF maximal voluntary contractions (MVCs) were measured simultaneously with surface activity triceps surae (TS) tibialis anterior (TA) muscles 12 young adults (mean age 27) at five different angles. Our results showed that: (i) coactivation level does not properly reflect mechanical muscle, (ii) TS torque...
Abstract The purpose of this study was to determine whether strength training could reduce the deficit in plantarflexion (PF) maximal voluntary contraction (MVC) torque observed previous studies older subjects relative young adults. Accordingly, effects a 6‐month program on muscle and neural properties major groups around ankle were examined. PF dorsiflexion (DF) isometric MVC torques measured surface electromyographic activity triceps surae tibialis anterior muscles recorded. very effective...
The aim of this study was to compare, at a given level electromyographic (EMG) activity, the behavior dorsiflexor and plantarflexor muscles as assessed via their architecture (pennation angle fiber length) during agonist or antagonist isometric contractions.Real-time ultrasonography EMG activity gastrocnemius medialis (GM) tibialis anterior (TA) were obtained while young males performed ramp contractions in dorsi- plantarflexion.For both muscles, similar length longer, pennation smaller,...
Brain-computer interfaces (BCIs) have been proven to be useful for stroke rehabilitation, but there are a number of factors that impede the use this technology in rehabilitation clinics and home-use, major including usability costs BCI system. The aims study were develop cheap 3D-printed wrist exoskeleton can controlled by open source (OpenViBE), determine if training with such setup could induce neural plasticity. Eleven healthy volunteers imagined extensions, which detected from...
Nowadays, the better assessment of low back pain (LBP) is an important challenge, as it leading musculoskeletal condition worldwide in terms years disability. The objective this study was to evaluate relevance various machine learning (ML) algorithms and Sample Entropy (SampEn), which assesses complexity motion variability identifying pain. Twenty chronic low-back (CLBP) patients 20 healthy non-LBP participants performed 1-min repetitive bending (flexion) return (extension) trunk movements....
Footwear comfort is essential and pressure distribution on the foot was shown as a relevant objective measurement to assess it. However, asperities sides, especially metatarsals instep, make its evaluation difficult with available equipment. Thus, sock equipped textile sensors designed. Results from mechanical tests showed high linearity of sensor response under incremental loadings allowed determine regression equation convert voltage values into measurements. The also highly repeatable...
Abstract During isometric contractions, the net joint torque stability is modulated with force production phases, i.e ., increasing ( IFP ), holding HFP and decreasing DFP ) phases. It was hypothesized that this modulation results from an altered cortical control of agonist antagonist muscle activations. Eleven healthy participants performed 50 submaximal ankle plantar flexion contractions. The phase effect , assessed on stability, muscles activations, activation, corticomuscular coherence...
The effect of visual feedback on enhancing isometric maximal voluntary contractions (MVC) was evaluated. Twelve adults performed plantar-flexion and dorsi-flexion MVCs in 3 conditions (no feedback, with target). There no significant MVC but there an plantar-flexion. Irrespective whether a target evident, increased by ∼15%. This study highlights the importance optimal to enhance MVC.