A5050320804- Sports Performance and Training
- Sports injuries and prevention
- Lower Extremity Biomechanics and Pathologies
- Muscle activation and electromyography studies
- Motor Control and Adaptation
- Cardiovascular and exercise physiology
- Exercise and Physiological Responses
- Effects of Vibration on Health
- Sports Dynamics and Biomechanics
- Winter Sports Injuries and Performance
- Shoulder Injury and Treatment
- Foot and Ankle Surgery
- Diabetic Foot Ulcer Assessment and Management
- Knee injuries and reconstruction techniques
- Total Knee Arthroplasty Outcomes
- Occupational Health and Performance
- Tendon Structure and Treatment
- Mechanics and Biomechanics Studies
- Orthopedic Surgery and Rehabilitation
- EEG and Brain-Computer Interfaces
- Physical Activity and Health
- Mobile Health and mHealth Applications
- Metal and Thin Film Mechanics
- Musicians’ Health and Performance
- Health Systems, Economic Evaluations, Quality of Life
Laboratoire Interuniversitaire de Biologie de la Motricité
2017-2024
Université Claude Bernard Lyon 1
2016-2024
Université Savoie Mont Blanc
2011-2024
Université Jean Monnet
2017-2024
École Normale Supérieure de Rennes
2024
Institut des Sciences du Mouvement Etienne-Jules Marey
2011-2015
Aix-Marseille Université
2012-2015
Centre National de la Recherche Scientifique
2012-2014
Institut des Sciences Moléculaires
2011
The aim of this study was to estimate muscle and joint forces during a power grip task. Considering the actual lack quantification such internal variables, information would be essential for sports sciences, medicine, ergonomics. This also contributed advancement scientific knowledge concerning hand control grip.A specially designed apparatus combining both an instrumented handle pressure map used record at hand/handle interface maximal exertions. Data were processed that exerted on 25...
The objective of this study was to analyse the effect handle diameter on grip forces exerted by hand during a maximal power task. A ergometer, combining six instrumented beams and pressure map, used determine palm side regrouping data from 10 anatomical sites (fingertips, phalanges, thumb, palm…). This methodology provided results giving new insight into hand. First, it appeared that relationship between length/handle ratio force fit U-inverted curve with values observed for measuring 17.9%...
Introduction The decision regarding when to return sport after an anterior cruciate ligament reconstruction (ACLR) is important one. Using a variety of subjective and objective parameters, various attempts have been made determine optimal timeline for ACLR, but none validated. aim the present study therefore which criteria or combination could allow with lowest possible risk reinjury. Methods analysis This prospective cohort, single-centre study, repeated assessments at 6, 9 12 months...
Abstract The aim was to determine the position of one-repetition maximum (1RM) squat point on force-velocity (F-V) relationship obtained during jump (SJ). Ten healthy athletes performed a 1RM which ground reaction force and lower-limb extension velocity were measured, six loaded SJs individual F-V relationship. goodness fit linear with or without tested. vertical horizontal coordinates determined relative theoretical maximal (F0) highest SJ (load 44.5±4.6% 1RM). did not differ condition,...
Downhill sections are highly strenuous likely contributing to the development of neuromuscular fatigue in trail running. Our purpose was investigate consequences an intense downhill run (DTR) on peripheral and central at knee extensors (KE) plantar flexors (PF). Twenty-three runners performed a 6.5-km DTR (1264-m altitude drop) as fast possible. The electromyographic activity vastus lateralis (VL) gastrocnemius (GL) continuously recorded. Neuromuscular functions were assessed Pre-, Post-,...
Clear decreases in horizontal force production capacity during sprint acceleration have been reported after hamstring injuries (HI) football players. We hypothesized that lower
The effects of tennis racket grip size on the forces exerted by muscles affecting lateral epicondylalgia (LE) were assessed in this study. Grip and joint moments applied wrist quantified under three different handle conditions, with without induced muscle fatigue for intermediate advanced players. obtained experimental results then used as input data a biomechanical model hand. This simulation aimed to quantify impact strength modulation experiment extensor forces. Our show that there is an...
Minimizing musculo-skeletal damage and fatigue is considered paramount for performance in trail running. Our purposes were to investigate the effects of foot strike pattern its variability on (a) muscle activity during a downhill run (b) immediate delayed neuromuscular fatigue. Twenty-three runners performed 6.5-km (1264 m negative elevation change). Electromyographic lower-limb muscles was recorded continuously. Heel metatarsal accelerations identify running technique. Peripheral central...
Women have been shown to experience less neuromuscular fatigue than men in knee extensors (KE) and peripheral plantar flexors (PF) after ultratrail running, but it is unknown if these differences exist for shorter trail running races whether this may impact economy. The purpose of study was characterize sex fatigability over a range distances examine possible the postrace alteration cost (Cr).Eighteen pairs women were matched by performance completing different ranging from 40 171 km,...
Whether the neural control of manual behaviors differs between dominant and nondominant hand is poorly understood. This study aimed to determine whether level common synaptic input motor neurons innervating same or different muscles hand. Seventeen participants performed two tasks with distinct mechanical requirements: an isometric pinch rotation a pinched dial. Each task was at 30% maximum effort repeated Motor units were identified from intrinsic (flexor digitorum interosseous thenar) one...
Abstract This study investigated the effects of shoe drop on lower limb kinematics and kinetics in female runners. Fifteen healthy runners ran a 15‐m runway at their preferred speed with three different shoe‐drop conditions: 0 ( D ), 6 ) 10 mm. Three‐dimensional marker positions ground reaction forces were recorded to analyse kinetic kinematic parameters using zero‐ (0D) one‐dimensional (1D) metrics (statistical parametric mapping, SPM). Regarding 0D parameters, significantly higher loading...
The objectives of this study were to investigate the effect handle shape on grip force distribution in hand and muscle forces during maximal power tasks. Eleven subjects maximally grasped 3 handles with different external shapes (circular, elliptic, double-frustum). A dynamometer, equipped both a sensor pressure map, was used record exerted at hand/handle interface. finger wrist joint postures also computed from synchronized kinematic measurement. These processed data then as input...
Ultramarathon running includes two main types of events: single-stage race (SSR) and multistage races (MSR). Direct comparison neuromuscular fatigue recovery after SSR versus MSR comparable distance elevation has never been performed. The aim this study was to assess ultramarathons equal performed either (i) in a single stage or (ii) four successive days.Thirty-one runners participated the study: 17 ran 169 km 14 around 40 km·d over 4 d. were on same course. Neuromuscular function tested...
Besson, T, Pastor, FS, Varesco, G, Berthet, M, Kennouche, D, Dandrieux, P-E, Rossi, J, and Millet, GY. Elite vs. experienced male female trail runners: comparing running economy, biomechanics, strength, power. J Strength Cond Res 37(7): 1470-1478, 2023-The increased participation in (TR) races the emergence of official international have performance level world best runners. The aim this study was to compare cost (Cr) biomechanical neuromuscular characteristics elite runners with their lower...
Sprint running is a critical performance parameter in many sports such as athletics, soccer or rugby that implies large forward acceleration. From mechanical standpoint, previous studies showed t...
"Does handle shape influence prehensile capabilities and muscle coordination?." Computer Methods in Biomechanics Biomedical Engineering, 17(sup1), pp. 172–173
The aim of this study was to determine whether a steady state reached over time in soft-tissue vibrations (STV) when running with different midsole hardness. Kinematics, kinetics and electromyography changes were also investigated an attempt be as comprehensive possible. Forty-five physically active adults (17 females) experience treadmill performed 8.5 minutes trial at self-selected speed soft, medium hard midsoles. STV gastrocnemius muscle, kinetics, kinematics electromyographic activity...
Velocity strength training requires exercise modalities that allow athletes to reach very high movement velocity, which is limited during vertical movements involving body weight. Purpose : To quantify the mechanical outputs developed horizontal squat jumps (HSJs), notably in comparison with (SJs) and without loads. Methods Thirteen healthy male performed SJs additional loads (SJ 0 ) a load of ∼60% mass 60 ), HSJs lying on roller device (assisted HSJ [AHSJ]) (HSJ) rubber-band assistance....
Fatigue has previously been investigated in trail running by comparing maximal isometric force before and after the race. Isometric contractions may not entirely reflect fatigue-induced changes, therefore dynamic evaluation is warranted. The aim of present study was to compare magnitude decrement versus power, force, velocity races ranging from 40 170 km.Nineteen runners completed shorter than 60 km, 21 longer 100 km. voluntary (IMVCs) knee extensors plantar flexors 7-second sprints on a...
ABSTRACT Footwear has the potential to reduce soft‐tissue vibrations (STV) but responses are highly subject‐specific. Recent evidence shows that compressive garments minimizing STV have a beneficial effect on neuromuscular (NM) fatigue. The aim was determine whether an individualized midsole hardness can minimize and NM fatigue during half marathon. Twenty experienced runners were recruited for three visits: familiarization session including identification of maximizing amplitude (MIN MAX,...