Achraf Ammar
A5091125346- Sports Performance and Training
- Sleep and related disorders
- Dietary Effects on Health
- Sports injuries and prevention
- COVID-19 and Mental Health
- Exercise and Physiological Responses
- Circadian rhythm and melatonin
- Cardiovascular and exercise physiology
- Physical Activity and Health
- Obesity, Physical Activity, Diet
- Muscle metabolism and nutrition
- Sleep and Wakefulness Research
- Children's Physical and Motor Development
- Sleep and Work-Related Fatigue
- Scheduling and Optimization Algorithms
- Sport Psychology and Performance
- Assembly Line Balancing Optimization
- Health and Lifestyle Studies
- Heart Rate Variability and Autonomic Control
- Coffee research and impacts
- Psychological Well-being and Life Satisfaction
- Motivation and Self-Concept in Sports
- Advanced Manufacturing and Logistics Optimization
- Antioxidant Activity and Oxidative Stress
- Muscle activation and electromyography studies
University of Sfax
2016-2025
Institut Supérieur du Sport et de l’Éducation Physique de Sfax
2014-2025
Johannes Gutenberg University Mainz
2003-2025
Université Paris Nanterre
2020-2025
RWTH Aachen University
2025
Institute for Sports Medicine
2024
Université Paris Lumières
2022-2024
Otto-von-Guericke University Magdeburg
2015-2023
Université Internationale de Tunis
2023
University of Applied Sciences Mainz
2023
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...
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.
Abstract Objective Our objective was to explore the training-related knowledge, beliefs, and practices of athletes influence lockdowns in response coronavirus disease 2019 (COVID-19) pandemic caused by severe acute respiratory syndrome 2 (SARS-CoV-2). Methods Athletes ( n = 12,526, comprising 13% world class, 21% international, 36% national, 24% state, 6% recreational) completed an online survey that available from 17 May 5 July 2020 explored their training behaviors (training...
Developmental Coordination Disorder (DCD) is one of the most prevalent neurodevelopmental disorders in childhood. DCD classified as a motor learning deficit because it interferes with ability to learn and automate movement skills. There lack information on how these children acquire complex skills relevant their daily recreational or sports activities. Evidence guide physical trainers, educators, health professionals select an effective type training improve fitness for poor coordination...
Drowsiness detection (DD) has become a relevant area of active research in biomedical signal processing. Recently, various deep learning (DL) researches based on the EEG signals have been proposed to detect fatigue conditions. The presented this paper proposes an classification system for DD DL networks. However, is mainly realized into two procedures; (i) data acquisition and (ii) model analysis. For procedure, key steps are considered, which collection using wearable Emotiv EPOC+ headset...
Parental vaccine hesitancy (VH) remains a barrier to full population inoculation, hence herd immunity against the SARS-CoV-2 virus. We aimed determine parental VH rate, subgroups and influencing factors related BNT162b2 COVID-19 among their young adolescents (12–15 years old) in Qatar. A retrospective, cross-sectional study was conducted from 17 May 3 June using vaccination booking records of 4023 adolescents. Sociodemographic characteristics (i.e., age, sex, nationality), health status were...
COVID-19 home confinement has led to a stressful situation for children around the world and affected their lifestyle. The present study aimed investigate effect of these restrictions on sleep quality, screen time (ST) physical activity (PA) in Tunisian with special focus gender differences. An online survey was launched April 2020. Questions were presented differential format, expected responses related “before” “during” confinement. Participants (52 boys 48 girls, age: 8.66 ± 3.3 years)...
Despite the progress in management of pandemic caused by COVID-19, it is necessary to continue exploring and explaining how this situation affected athlete population around world improve their circumstances reduce negative impact changes lifestyle conditions that were necessitated due pandemic. The aim study was analyze moderating influence physical activity (PA) dietary habits on COVID-19 experience sleep quality elite amateur athletes.A total 1,420 (40.1%) (59.9%) athletes (41% women; 59%...
Objective: Research in sports medicine and exercise science has experienced significant growth over recent years. With this expansion, there been a concomitant rise ethical challenges specific to these disciplines. While various guidelines exist for numerous scientific fields, comprehensive set tailored specifically is lacking. Aiming bridge gap, paper proposes comprehensive, updated of targeted at researchers science, providing them with thorough framework ensure research integrity....
Caffeine (CAF) is among the most extensively researched dietary supplements worldwide. However, little known about relationship between dosage and performance enhancement, particularly in female athletes. This study aimed to explore effects of three different CAF dosages (3 mg·kg−1, 6 9 mg·kg−1) on high-intensity exercise prevalence undesirable side related these doses team-sports All participants (n = 16; age: 16.9 ± 0.6 y; height: 1.64 0.1 m; BMI: 21.6 1.5 kg·m−2) were mild consumers. had...
The aim of this study was to investigate the performance an Olympic-Weightlifting session training at three times day on related biochemical responses. Nine weightlifters (21 ± 0.5 years) performed, in randomised order, (snatch, clean and jerk) sessions (08:00 a.m., 02:00 p. m., 06:00 m.). Blood samples were collected: before, 3 min 48 h after each session. Haematological parameters markers muscle injury assessed. Resting oral temperature rating perceived exertion (RPE) also assessed during...
The aim of this study was to test the hypothesis that pomegranate juice supplementation would blunt acute and delayed oxidative stress responses after a weightlifting training session. Nine elite weightlifters (21.0 ± 1 years) performed two Olympic-Weightlifting sessions ingesting either placebo or supplements. Venous blood samples were collected at rest 3 min 48 h each Compared condition, attenuated increase in malondialdehyde (−12.5%; p < 0.01) enhanced enzymatic (+8.6% for catalase...
Purpose The aim of this study was to investigate the effect natural Pomegranate juice supplementation on performance and acute delayed responses muscle soreness biomarkers damage after a weightlifting training session. Methods Nine elite weightlifters (21±0.5 years) performed two Olympic-Weightlifting-sessions either placebo (PLA) or pomegranate (POMj) supplementations. Heart rate, blood pressure samples (hematological parameters, C-reactive protein (CRP)) were collected at rest, 3min 48h...
Currently, it is well accepted that physical exercise-induced oxidative stress may damage biological structures and impair cellular functions. However, still unclear which type of exercise results in the greatest responses among a healthy untrained population. The aim present study was to compare acute response (i.e., 0 20 min) following different types (anaerobic, aerobic, combined). Ten healthy, males (19.5 ± 1.7 years) performed three randomized bouts: anaerobic (30 s Wingate test),...
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...