A5037837979- Circadian rhythm and melatonin
- Exercise and Physiological Responses
- Muscle metabolism and nutrition
- Cardiovascular and exercise physiology
- Sports Performance and Training
- Travel-related health issues
- SARS-CoV-2 and COVID-19 Research
- COVID-19 and Mental Health
- Dietary Effects on Health
- Sports injuries and prevention
- Sleep and related disorders
- Cardiovascular Effects of Exercise
- COVID-19 epidemiological studies
- Physical Activity and Health
- Thermoregulation and physiological responses
- Health and Lifestyle Studies
- Heart Rate Variability and Autonomic Control
- Long-Term Effects of COVID-19
- Ovarian function and disorders
- Hormonal and reproductive studies
- Reproductive Biology and Fertility
- COVID-19 Clinical Research Studies
- Music Therapy and Health
- Spondyloarthritis Studies and Treatments
- Multiple Sclerosis Research Studies
Hôpital Farhat Hached
2015-2024
University of Sousse
2013-2024
Manouba University
2018-2022
Centre National de la Médecine et des Sciences des Sports
2021
Université Paris Nanterre
2020
Many COVID-19 infected people remain asymptomatic, and hence the diagnosis at first presentation remains a challenge. Assessment in primary care settings is usually done by visual triaging basic clinical examination. This retrospective study involved investigating medical e-records of positive patients who presented to centre Qatar for July 2020. The presence (symptomatic group) or absence (asymptomatic symptoms along with objective vital examination (ie; heart-rate (HR), temperature,...
The COVID-19 outbreak resulted in the shutdown of athletic training facilities. Although effects these restrictions on daily activity and sleep patterns have been widely analyzed, employed tools often lacked accuracy, were based subjective measures. This study assessed home confinement objective physical (PA), physiological parameters active individuals. Sixteen male elite fitness coaches (age: 29±3 years; height: 183±6 cm; body mass: 82±5 kg, mass index: 24.7±1.8 kg/m2) participated this...
COVID-19 Vaccination, Herd Immunity and The Transition Toward Normalcy: Challenges with Upcoming Sports Events
ENWEndNote BIBJabRef, Mendeley RISPapers, Reference Manager, RefWorks, Zotero AMA Dergaa I, Musa S, Romdhani M, et al. FIFA World Cup 2022: What can we learn from the inspiring Tokyo 2020 Olympic Games held in COVID-19 times?. Biology of Sport. 2022;39(4):1073-1080. doi:10.5114/biolsport.2022.113293. APA Dergaa, I., Musa, S., Romdhani, M., Souissi, A., Abdulmalik, M. & Chamari, K. (2022). Sport, 39(4), 1073-1080. https://doi.org/10.5114/biolsport.2022.113293 Chicago Ismail, Sarah Mohamed...
This study assessed the effect of time day (TOD) and listening to music during warm-up on cognitive physical performances after partial sleep deprivation (PSD) normal nights (NSN). In a randomized order, twelve male education students [mean (SD) age 20.3 ± 2.0 y; BMI 22.90 3.57 kg/m2)] completed 30-s Wingate test (i.e., mean (MP) peak powers (PP)), simple (SRT) choice reaction times (CRT), mental rotation (MRT) selective attention test. Measurements were performed at 07:00 h 17:00 NSN PSD...
It is well known that exercise increases the activity of thyroid glands and raises blood level melatonin. The increase melatonin during may be linked to a rise in thyroid-stimulating hormone (TSH). No previous study has investigated combined effects ingestion acute submaximal on hormones' responses. purpose this pilot was explore daytime responses exercise. After 50 min either (6 mg) or placebo ingestion, eight physical education students (mean ± standard deviation age: 22 1 years) were...
AMA Dergaa I, Ben Saad H, Zmijewski P, et al. Large-scale sporting events during the COVID-19 pandemic: insights from FIFA World Cup 2022 in Qatar with an analysis of patterns metrics. Biology Sport. 2023;40(4):1249-1258. doi:10.5114/biolsport.2023.131109. APA Dergaa, I., Saad, H., Zmijewski, P., Farhat, R. A., Romdhani, M., & Souissi, A. (2023). Sport, 40(4), 1249-1258. https://doi.org/10.5114/biolsport.2023.131109 Chicago Ismail, Helmi Piotr Ramdan A Mohamed Amine and Jad Washif 2023....
Exercise mechanical efficiency typically falls within the range of approximately 20 to 25%. This means that a great part metabolic energy converted generate movement is released as heat. Therefore, rise in core temperature during endurance exercise humans proportional generated work. Cutaneous vasodilation occurs when threshold reached. The heart rate response thermal stress cardiovascular increases cardiac output and skin blood flow. complex phenomenon potentially influenced by involvement...
The present study aimed to evaluate the effect of music on short-term exercise performance during different menstrual cycle phases (MCP). In MCP (i.e. phase (MP), luteal (LP), follicular (FP)) and in a randomized order, fourteen female handball players aged between 21-24 years performed (fast-tempo, 140 bpm) no-music conditions following tests: squat jump (SJ) test, countermovement (CMJ), agility T-test (TT), repeated sprint ability (RSA). profile mood states (POMS) questionnaire was...
The combined effect of Ramadan fasting and the time theday on physical performance team-handball players has not yet been fully investigated. This study investigated effects morning–evening difference in team-handball-related short-term maximal performance. With acounterbalanced design, 15 elite female underwent hand grip (HG), ball throwing velocity (BTV), modified agility T-test (MAT), repeated shuttle-sprint jump ability (RSSJA) tests at 07:00 h 17:00 h, one week before (BR), during...
The purpose of this study was to explore the effect time day (TD) on two types exercise protocols [continuous (CP) versus alternated (AP)]. Eleven physical education students (mean ± SD: age = 24.4 1.2 years, aerobic peak power (APP) 290 31.9 W) underwent four sessions. These sessions were performed at 08:00 (AM) and 18:00 (PM) consisted cycling exercises until voluntary exhaustion 90% APP or 70%-105% (AP) with order testing randomly assigned. Time (time limit Tlim) measured from start test...
The specifics of short-term physical exercise are similar to the immediate reaction demands placed on police officers. Identifying physiological predisposition high-intensity in male law enforcement officers will assist understanding their metabolism and make a significant contribution much more personal individualized workout program. This improve fitness individual officers, improving preparedness for such times emergency. cross-sectional study was conducted investigate responses...
The current study sought to investigate the effect of melatonin consumption on cardiovascular response during submaximal exercise in healthy men. For this purpose, eight students (age: 21.8 ± 0.9) were asked run for 45 minutes at intensity after melatonin-(6 mg) or placebo-ingestion, a randomized and counterbalanced order. Heart rate (HR) rectal temperature ( T re ) evolution measured. Blood samples drawn twice (before immediately exercise) determination triglycerides, total cholesterol,...
The circadian clock regulates the function of immune system, replication viruses, and magnitude infections. aim this study was to analyse whether hospital attendance in Coronavirus disease 2019 (COVID-19) patients presents a diurnal variation.Data from electronic medical records 1094 COVID-19 who presented Health Centre Qatar during month July 2020 retrospectively analysed. following demographic (i.e. time day (TOD), sex, age), clinical cycle threshold (CT), temperature, oxy-haemoglobin...
We aimed to evaluate the effect of single 6-mg melatonin (MEL) supplementation on inflammatory response prolonged exercise at a moderate temperature (23°C) and relative humidity 60%. Eight athletes aged between 20 23 years participated in present study. They ran 60% their maximal aerobic speed for 45 min after either MEL (6 mg) or placebo ingestion, randomized order. A blood samples were taken before measure biomarkers. All biomarkers higher end both conditions. Acute did not prevent...
Exogenous melatonin supplementation may enhance endurance performance because of its pre-cooling effect. The present study aimed to evaluate the effect acute ingestion on rectal temperature (Tre) response submaximal exercise performed in moderate temperature. Eight students moderately trained aged between 20–23 years completed two experimental sessions a randomized order. subjects ran treadmill for 45 minutes at 60% their maximal aerobic speed (MAS) after either melatonin-(6mg) or placebo...
Context: Melatonin is a hormone synthesized principally in the pineal gland that has been classically associated with endocrine actions. Exogenous melatonin often used to treat insomnia and enhance sleep quality range of situations, including jet lag. However, benefit safety profile daytime dosing prior exercise are unknown warrant additional exploration. Objectives: We aimed give (i) brief overview beneficial effects exogenous administration on sports performance (ii) some recommendations...
Daytime melatonin ingestion is known to induce sleep at rest, which may affect arousal and vigilance. Physical exercise produce an increase in core temperature circulating cortisol can enhance The effect of submaximal on vigilance following acute has not yet been studied. present study aimed investigating the daytime ingestion.Eight physical education students undertook 45 min (at 60% maximal aerobic speed) a treadmill after melatonin-(6 mg) or placebo ingestion, randomized counterbalanced...
Wet-cupping therapy (WCT) is one of the oldest known medical techniques, used as a traditional and complementary with wide application all around world for general health. Research on effects WCT sports performance are sparse inconsistent. Thus, we aimed to explore repeated sprint ability, wellness, exertion in young active males. Forty-nine adult males (age: [28 ± 5] years; body height [177 8] cm; mass: [79 7] kg; mass index: [25.4 1.8] kg/m