Jeremy Rossi

Jeremy Rossi
Université Jean Monnet · Département des Sciences et Techniques des Activités Physiques et Sportives

PhD

About

76
Publications
40,864
Reads
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501
Citations
Additional affiliations
September 2012 - present
Université Savoie Mont Blanc
Position
  • Research Assistant
September 2012 - present
Université Savoie Mont Blanc
Position
  • Research Assistant
January 2009 - September 2012
Oxylane Research
Position
  • Research & Development Engineer

Publications

Publications (76)
Article
To teach a skilled motor task, it is crucial to understand the characteristics of expertise. The aim of the present study was to compare the kinematics of the hand sewing task between novices (n = 10), intermediates (n = 10) and experts (n = 10). Compared to novices and intermediates, the proximal joint of expert participants was less involved in t...
Article
Full-text available
The purpose of the study was to assess the influence of a preceding mountain ultramarathon on the impact between the foot and the ground and the resulting soft tissue vibrations (STV). Two sessions of measurements were performed on 52 trail runners, before and just after mountain trail running races of various distances (from 40 to 171 km). Triaxia...
Article
Full-text available
The aim of this study was to investigate if acute impairments of the footwear midsole materials could interact with the modifications of the running patterns after a fatiguing trail running race. We hypothesized that introducing a control pair of shoes after the race, would modify running mechanics by partially correcting the alterations generated...
Article
Full-text available
In recent years, there has been a significant expansion in female participation in endurance (road and trail) running. The often reported sex differences in maximal oxygen uptake (VO2max) are not the only differences between sexes during prolonged running. The aim of this narrative review was thus to discuss sex differences in running biomechanics,...
Preprint
Whether the neural control of manual behaviours differs between the dominant and non-dominant hand is poorly understood. This study aimed to determine whether the level of common synaptic input to motor neurons innervating the same or different muscles differs between the dominant and the non-dominant hand. Seventeen participants performed two moto...
Article
Full-text available
Funding Acknowledgements Type of funding sources: Other. Main funding source(s): Doctoral contract 2018-2022 Background Several studies have shown the importance of the relationship between the power-force-velocity profile (PFVP) and sport performance in elite athletes through optimised exercise training.[1] Optimising the training programme is co...
Conference Paper
Background A test battery is recommended after anterior cruciate ligament reconstruction (ACLR) to help decision-making of return to sport (RTS). Running is important in RTS continuum, but it is currently not included in the usual test batteries. Could running pattern asymmetry, which can be observed after ACLR, be considered as a risk factor of AC...
Article
Full-text available
Purpose: 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, so that dynamic evaluation is warranted. The aim of the present study was to compare the magnitude of the decrement of maximal isometric force vs...
Article
Full-text available
Clear decreases in horizontal force production capacity during sprint acceleration have been reported after hamstring injuries (HI) in football players. We hypothesized that lower FH0 is associated with a higher HI occurrence in football players. We aimed to analyze the association between sprint running horizontal force production capacities at lo...
Article
Introduction: Females have been shown to experience less neuromuscular fatigue than males in knee extensors (KE) and less peripheral fatigue in plantar flexors (PF) following ultra-trail running, but it is unknown if these differences exist for shorter trail running races and whether this may impact running economy. The purpose of this study was t...
Conference Paper
Full-text available
Basketball is an intermittent sport were the fast actions such as sprints, jumps or changes of direction are key physical features. Typically, it is in the preseason that these, and the main physical components are emphasized during training to ensure the highest levels of performance in the following competitive period (1). Given that the technica...
Article
The purpose of this study was to evaluate improvements in functional performance through the use of the Limb Symmetry Index of Single and Triple Hop tests between 12 and 52 weeks after anterior cruciate ligament reconstruction, and to compare these values with usual time-based and performance-based criteria used during the return to sport continuum...
Poster
Full-text available
Musculoskeletal models provide a non-invasive method to estimate muscle and joint contact forces to better understand muscle contributions to human movement. Considering that most of the existing generic models were developed based on adult anatomy and muscles architectures. To our knowledge, there is no children-specific muscle parameters in MSKM...
Article
Full-text available
Purpose: Ultramarathon running includes two main types of events: single (SSR) and multi-stage races (MSR). Direct comparison of neuromuscular fatigue and recovery following SSR vs MSR race of comparable distance and elevation have never been performed. The aim of this study was to assess neuromuscular fatigue and recovery following two ultramarat...
Article
Full-text available
Background The force-velocity-power (FVP) profile is used to describe dynamic force production capacities, which is of great interest in training high performance athletes. However, FVP may serve a new additional tool for cardiac rehabilitation (CR) of coronary artery disease (CAD) patients. The aim of this study was to compare the FVP profile betw...
Poster
Full-text available
After anterior cruciate ligament reconstruction (ACLR), a test battery is often performed to allow the 2nd step of Return to Sport (RTS-2) continuum: the return to play. Lower limb force production capacities assessment during sprinting could be interesting because it is safe for the graft, provides complementary information in addition to usual fu...
Article
The purpose of this study was to propose and validate a new simple method for calculation of center of mass work during field running, in order to avoid the use of costly and inconvenient measurement devices. This method relies on spring-mass model and measurements of average horizontal velocity, and contact and flight times during running. Ten mal...
Poster
Full-text available
In order to analyse the severity of sports impacts, time-frequency analysis of tibial acceleration can be performed with wavelet transform. However, a prerequisite to conduct such analysis is the selection of the mother wavelet. This study compared a set of 65 different wavelets on 2,240 tibial accelerations recorded at different speeds and fatigue...
Conference Paper
Full-text available
In order to analyse the severity of sports impacts, time-frequency analysis of tibial acceleration can be performed with wavelet transform. However, a prerequisite to conduct such analysis is the selection of the mother wavelet. This study compared a set of 65 different wavelets on 2,240 tibial accelerations recorded at different speeds and fatigue...
Article
Full-text available
This study investigated the effects of shoe drop on lower limb kinematics and kinetics in female runners. Fifteen healthy female runners ran on a 15-m runway at their preferred speed with three different shoe-drop conditions: 0 (D0), 6 (D6) and 10 (D10) mm. Three-dimensional marker positions and ground reaction forces were recorded to analyse kinet...
Article
Paradisis, GP, Pappas, P, Dallas, G, Zacharogiannis, E, Rossi, J, and Lapole, T. Acute effects of whole-body vibration warm-up on leg and vertical stiffness during running. J Strength Cond Res 35(9): 2433-2438, 2021-Although whole-body vibration (WBV) has been suggested as a suitable and efficient alternative to the classic warm-up routines, it is...
Article
This study aimed to compare the effect of a 40-min submaximal rowing exercise performed on ergometers with fixed and free-floating designs. Heart rate, blood lactate concentration, force and rate of force development (RFD) at the handle, stroke rate, duty factor, movement kinematics of upper and lower limbs, and muscle activity of lumbar spine musc...
Article
Contexte La lésion musculaire des ischio-jambiers est la principale blessure observée dans les sports d’accélérations et de sprints. Il existe un lien entre la pratique du sprint et la lésion des ischio-jambiers. Par ailleurs, les ischio-jambiers jouent un rôle dans la performance en sprint via leur capacité à produire une force horizontale orienté...
Article
Full-text available
Purpose: Our aim was to quantify the mechanical outputs developed during horizontal squat jumps, and notably the movement velocity, in comparison to vertical squat jumps with and without loads. Methods: Thirteen healthy male athletes performed squat jumps without additional loads (SJ0), with a load of ~60% of body mass (SJ60) and during horizont...
Article
Full-text available
Hintzy, F, Gregoire, N, Samozino, P, Chiementin, X, Bertucci, W, and Rossi, J. Effect of thigh-compression shorts on muscle activity and soft-tissue vibration during cycling. J Strength Cond Res 33(8): 2145-2152, 2019-This study examined the effects of different levels of thigh compression (0, 2, 6, and 15 mm Hg) in shorts on both vibration and mus...
Article
Full-text available
Introduction and Aims: The goal of rehabilitation programs after an Anterior Cruciate Ligament Reconstruction (ACLR) is to guide the functional recovery and the safe return to sport without recurrence or secondary pathologies [1]. Functional tests including Hop tests and the subsequent Limb Symmetry Index(LSI) are commonly used to monitore the func...
Article
Full-text available
Introduction Patients with Anterior Cruciate Ligament Reconstruction (ACLR) can return to pivot/cutting activities starting from 6 months post-surgery despite a lack of consensus remains regarding the objective criteria for returning to sport (RtS). It was reported that the return to run may happen between the 3rd and the 4th month post-surgery, an...
Poster
Full-text available
Patients with Anterior Cruciate Ligament Reconstruction (ACLR) can return to pivot/cutting activities starting from 6 months post-surgery despite a lack of consensus remains regarding the objective criteria for returning to sport (RTS). It was reported that the return to run may happen between the 3rd and the 4th month post-surgery, and this activi...
Poster
Full-text available
The goal of rehabilitation programs after an Anterior Cruciate Ligament Reconstruction (ACLR) is to guide the functional recovery and the safe return to sport without recurrence or secondary pathologies [1]. Functional tests including Hop tests and the subsequent Limb Symmetry Index (LSI) are commonly used to monitor the functional recovery [2]. An...
Article
The aim was to determine the position of the one-repetition maximum (1RM) squat point on the force-velocity (F-V) relationship obtained during squat jump (SJ). Ten healthy athletes performed a 1RM squat during which ground reaction force and lower-limb extension velocity were measured, and six loaded SJs to determine individual F-V relationship. Th...
Article
Full-text available
Introduction The decision regarding when to return to sport after an anterior cruciate ligament reconstruction (ACLR) is an important one. Using a variety of subjective and objective parameters, various attempts have been made to determine an optimal timeline for a return to sport after ACLR, but none have been validated. The aim of the present stu...
Article
Full-text available
Introduction Apres une ligamentoplastie du ligament croise anterieur (LCA), le retour au sport de pivots/contacts competition peut se faire a partir de 6 mois. La decision de reprise se fait generalement apres accord medical grâce a de nombreux criteres. Malgre cela on observe de nombreuses blessures pendant cette phase. Mazet et al. [1] ont montre...
Poster
Full-text available
Après une reconstruction du ligament croisé antérieur (LCA), le retour au sport de compétition peut se faire à partir de 6 mois postopératoires. La décision de reprise se fait généralement après accord avec le médecin du sport/chirurgien avec de nombreux critères. Malgré cela il existe de nombreuses blessures pendant cette phase. De plus, Mazet et...
Article
Minimizing musculo-skeletal damage and fatigue is considered paramount for performance in trail running. Our purposes were to investigate the effects of the foot strike pattern and its variability on (a) muscle activity during a downhill trail run and (b) immediate and delayed neuromuscular fatigue. Twenty-three runners performed a 6.5-km run (1264...
Article
Trail runners are exposed to a high number of shocks, including high-intensity shocks on downhill sections leading to greater risk of osseous overuse injury. The type of foot strike pattern (FSP) is known to influence impact severity and lower-limb kinematics. Our purpose was to investigate the influence of FSP on axial and transverse components of...
Article
Downhill sections are highly strenuous likely contributing to the development of neuromuscular fatigue in trail running. Our purpose was to investigate the consequences of an intense downhill trail run (DTR) on peripheral and central neuromuscular fatigue at knee extensors (KE) and plantar flexors (PF). Twenty-three runners performed a 6.5-km DTR (...
Article
Full-text available
The objectives of this study were to investigate the effect of handle shape on the grip force distribution in the hand and on the muscle forces during maximal power grip tasks. Eleven subjects maximally grasped three handles with different external shapes (circular, elliptic and double-frustum). A handle dynamometer, equipped with both a force sens...
Conference Paper
Full-text available
The purpose of the present study was to investigate the influence of foot strike pattern (FSP) on shock severity and attenuation during a downhill trail run. Twenty-three runners performed a 6.5-km downhill run (-1 264 m) equipped with four tri-axial accelerometers placed at tibia, sacrum, heel and metatarsals. FSP was identified using time differe...
Conference Paper
Full-text available
running and the associated eccentric actions generate muscle damage and excitation-contraction coupling failure [1]. A significant part of the peripheral fatigue observed after ultratrail races could be attributed to the downhill sections. Minimizing musculoskeletal damage and muscular fatigue is thus considered as a determinant factor of performan...
Conference Paper
Objectif Il est souvent proposé au patient diabétique neuropathe présentant un mal perforant, de porter une chaussure thérapeutique. L’étude propose d’analyser chez le sujet témoin l’influence d’une chaussure thérapeutique avec ou sans semelle sur la marche et les pressions plantaires. Patients et méthodes Vingt et un témoins (13 femmes, 8 hommes)...
Article
Full-text available
The aim of this study was to compare the physiological responses and rowing efficiency on 2 different rowing ergometers: stationary vs. dynamic ergometers manufactured by Concept2. 11 oarswomen and oarsmen rowed 4 min at 60% and 70% of peak power output on both ergometers (randomized order). Power output, stroke rate, heart rate, oxygen uptake, car...
Conference Paper
Full-text available
Several studies suggested that lateral epicondylitis could potentially develop among tennis players presenting a muscle force imbalance, defined as a functional ratio weakness between agonist and antagonist muscles and/or a predominance of synergic muscles during the movement. Consequently, the measurement of muscle force capability and the assessm...
Article
Full-text available
39th Congress of the Societe-de-Biomecanique, Valenciennes, FRANCE, AUG 27-29, 2014
Article
The effects of tennis racket grip size on the forces exerted by muscles affecting lateral epicondylalgia (LE) were assessed in this study. Grip forces and joint moments applied on the wrist were quantified under three different handle size conditions, with and without induced muscle fatigue for intermediate and advanced players. The obtained experi...
Article
Full-text available
The aim of this study was to estimate muscle and joint forces during a power grip task. Considering the actual lack of quantification of such internal variables, this information would be essential for sports sciences, medicine, and ergonomics. This study also contributed to the advancement of scientific knowledge concerning hand control during pow...
Article
Full-text available
The objective of this study was to analyse the effect of the handle diameter on the grip forces exerted by the hand during a maximal power grip task. A handle ergometer, combining six instrumented beams and a pressure map, was used to determine the forces exerted by the palm side of the hand regrouping data from 10 anatomical sites (fingertips, pha...
Article
This study analyses the finger force sharing using power grip task with adapted experimental conditions. This paradigm limits as much as possible the external constraints when the Index (I), Middle (M), Ring (R) and Little (L) fingers act simultaneously: the thumb did not oppose the other fingers and no secondary moments were applied to the wrist....