Mohamed Jarraya
A5005278450- Sport Psychology and Performance
- Sports Performance and Training
- Visual and Cognitive Learning Processes
- COVID-19 and Mental Health
- Tissue Engineering and Regenerative Medicine
- Infectious Aortic and Vascular Conditions
- Wound Healing and Treatments
- Psychological Well-being and Life Satisfaction
- Sleep and related disorders
- Children's Physical and Motor Development
- Sleep and Work-Related Fatigue
- Infective Endocarditis Diagnosis and Management
- Sleep and Wakefulness Research
- Vascular Procedures and Complications
- Action Observation and Synchronization
- Burn Injury Management and Outcomes
- Organ and Tissue Transplantation Research
- Visual perception and processing mechanisms
- Electrospun Nanofibers in Biomedical Applications
- Motivation and Self-Concept in Sports
- Cardiac Valve Diseases and Treatments
- Educational Games and Gamification
- Aortic aneurysm repair treatments
- Retinal Development and Disorders
- Muscle activation and electromyography studies
Institut Supérieur du Sport et de l’Éducation Physique de Sfax
2013-2024
University of Sfax
2006-2024
Assistance Publique – Hôpitaux de Paris
2010-2023
Hôpital Saint-Louis
2010-2021
Massachusetts General Hospital
2021
Harvard University
2021
Centre National de la Médecine et des Sciences des Sports
2011-2020
Institut des Cellules Souches pour le Traitement et l'Étude des Maladies Monogéniques
2019
Association Francaise contre les Myopathies
2019
Hôpital Européen
2017
Background: Public health recommendations and governmental measures during the COVID-19 pandemic have resulted in numerous restrictions on daily living including social distancing, isolation home confinement. While these are imperative to abate spreading of COVID-19, impact behaviours lifestyles at is undefined. Therefore, an international online survey was launched April 2020, seven languages, elucidate behavioural lifestyle consequences restrictions. This report presents results from first...
Public health recommendations and governmental measures during the new coronavirus disease (COVID-19) pandemic have enforced numerous restrictions on daily living including social distancing, isolation, home confinement. While these are imperative to mitigate spreading of COVID-19, impact psychosocial is undefined. Therefore, an international online survey was launched in April 2020 elucidate behavioral lifestyle consequences COVID-19 restrictions. This report presents preliminary results...
AMA Ammar A, Trabelsi K, Brach M, et al. Effects of home confinement on mental health and lifestyle behaviours during the COVID-19 outbreak: Insight from ECLB-COVID19 multicenter study. Biology Sport. 2021;38(1):9-21. doi:10.5114/biolsport.2020.96857. APA Ammar, A., Trabelsi, K., Brach, M., Chtourou, H., Boukhris, O., & Masmoudi, L. (2021). Sport, 38(1), 9-21. https://doi.org/10.5114/biolsport.2020.96857 Chicago Achraf, Khaled Michael Hamdi Omar Liwa Bassem Bouaziz 2021. "Effects study"....
Public health recommendations and government measures during the COVID-19 pandemic have enforced restrictions on daily-living. While these are imperative to abate spreading of COVID-19, impact mental emotional wellbeing is undefined. Therefore, an international online survey (ECLB-COVID19) was launched April 6, 2020 in seven languages elucidate wellbeing.
Symptoms of psychological distress and disorder have been widely reported in people under quarantine during the COVID-19 pandemic; addition to severe disruption peoples' daily activity sleep patterns. This study investigates association between physical-activity levels patterns quarantined individuals. An international Google online survey was launched April 6th, 2020 for 12-weeks. Forty-one research organizations from Europe, North-Africa, Western-Asia, Americas promoted through their...
Background Missed fractures are a common cause of diagnostic discrepancy between initial radiographic interpretation and the final read by board-certified radiologists. Purpose To assess effect assistance artificial intelligence (AI) on performances physicians for radiographs. Materials Methods This retrospective study used multi-reader, multi-case methodology based an external multicenter data set 480 examinations with at least 60 per body region (foot ankle, knee leg, hip pelvis, hand...
The COVID-19 lockdown could engender disruption to lifestyle behaviors, thus impairing mental wellbeing in the general population. This study investigated whether sociodemographic variables, changes physical activity, and sleep quality from pre- during were predictors of change quarantined older adults.
Aims Aortic valve diseases are characterized by pathological remodelling of valvular tissue but the cellular and molecular effectors involved in these processes not well known. The role matrix metalloproteinase (MMP)-2, MMP-9, MMP-3, MMP-7, inhibitor (TIMP)-1 TIMP-2 investigated here.
The cognitive advantage of imagined spatial transformations the human body over that more unfamiliar objects (e.g., Shepard-Metzler [S-M] cubes) is an issue for validating motor theories visual perception. In 6 experiments, authors show providing S-M cubes with characteristics by adding a head to evoke posture) facilitates mapping coordinate system one's onto abstract shape. turn, this embodiment improves object shape matching. Thanks increased cohesiveness posture in people's schema,...
The purpose of this investigation was to assess the effects listening music during warm-up on short-term supramaximal performances 30-s Wingate test in highly trained athletes.Twelve young male athletes (20.6±1.8 yrs, 177±4.4 cm and 72.3±5.3 kg) underwent two tests separate sessions with a recovery period 48 h in-between, either after 10 min (MWU) or without (NMWU) music. High tempo (>120 140bpm) selected for study. Heart rate (HR) perceived exertion (RPE) were recorded (for HR = average...
Human ESC–derived retinal pigment epithelial cell sheets are more effective than suspensions at rescuing photoreceptor loss in rats with dystrophy.
Abstract Myositis ossificans (MO) is an inflammatory pseudotumor of the muscle that may be mistaken clinically and even histologically for a malignant soft tissue tumor. The aim this article to report imaging characteristics MO, emphasis being on early diagnostic clues. USG can used at stage reveal ′zone phenomenon,′ which highly suggestive MO. A short course nonsteroidal anti-inflammatory drug therapy efficient treatment
AbstractThe aim of this study was to investigate the effects time day and partial sleep deprivation on cognitive performances (i.e., attention reaction [RT]) handball goalkeeper (GK). The protocol involved 12 healthy GK volunteer males (age: 18.5 ± 1.7 years, level experience: 8.3 2.4 height: 1.80 5.8 cm; body-mass: 79 4.2 kg). They performed three tasks, i.e. RT test, Stroop barrage respectively, evaluate RT, selective (SA), constant (CA) following two situations deprivation, in beginning...
Abstract Background Public health recommendations and governmental measures during the COVID-19 pandemic have enforced numerous restrictions on daily living including social distancing, isolation home confinement. While these are imperative to abate spreading of COVID-19, impact behaviours lifestyle at is undefined. Therefore, an international online survey was launched in April 2020 seven languages elucidate behavioral consequences restrictions. This report presents preliminary results from...
The aim of this study was to investigate the effects partial sleep deprivation on cognitive performances handball goalkeeper (GK) in terms attention and reaction time (RT). Twelve healthy male volunteers (18.5 ± 1.7 years; 8.3 2.4 years experiment) took part protocol. They performed three tasks, i.e., RT test, Stroop barrage respectively, evaluate RT, selective (SA), constant (CA) following two situations deprivation, at beginning (SDB) end (SDE) night, a control situation (reference night),...
Abstract Background Although recognised as effective measures to curb the spread of COVID-19 outbreak, social distancing and self-isolation, have been suggested generate burden throughout population. To provide scientific data help identify risk-factors for psychosocial strain during an international cross-disciplinary online survey was circulated in April 2020. This report outlines mental, emotional behavioural consequences home confinement. Method Thirty-five research organisations from...
The present study assesses the impact of Kindergarten-based yoga on cognitive performance, visual-motor coordination, and behavior inattention hyperactivity in 5-year-old children. In this randomized controlled trial, 45 children (28 female; 17 male; 5.2 ± 0.4 years) participated. Over 12 weeks, 15 performed Hatha-yoga twice a week for 30 min, another generic physical education (PE) no kind activities, serving as control group (CG). Prior to (T0) after weeks (T1), all participants completed...
The objective of the present study is to analyze effects motor mental imagery training on tennis service performance among athletes who fast during Ramadan. Participants were 38 young male players, randomly divided into two groups: Imaging Training (IMG, n = 18) and control group (CG, 20). CG has watched videos history Olympic Games, while IMG followed a program in imagery. was obtained by product between accuracy speed typing (accuracy × average all shots (km/h)). effect group/time...
The purpose of the current study was to compare effectiveness a video and three different formats static pictures (simultaneous-permanent pictures, sequential-transient sequential-permanent pictures) on acquisition retention complex judo skill in novice young adults. One hundred thirty-three first-year students certificate Physical Education (PE) were randomly assigned either: static-simultaneous-permanent condition (n = 30), static-sequential-transient 29), static-sequential permanent 36)...
Abstract Recent studies exploring the effects of dynamic visualizations on learning compared with static have yielded mixed results. Procedural motor is one few fields in which representations shown to be effective. Many suggested that this advantage mainly due activation “mirror‐neuron system.” This study explores explanation physical education domain and analysed instructional media (video vs. photographs), showing tactical actions basketball, outcomes (i.e., game understanding...
To explore how one night of total sleep deprivation (TSD) could affect cognitive and physical performances, as well subjective experiences in 24 elite Kung-Fu athletes (age: 20.2 ± 1.76 years; body mass: 64.67 6.52 kg; height: 1.71 0.04 m). Participants completed, a randomized counterbalanced order, two tests sessions the late-afternoon (separated by 72-h recovery) under normal (NS) TSD conditions. Specific decision-making skills (decision accuracy (DA) decision time (DT)), various...