Publications by authors named "Hammouda O"

Background: Endothelial function (EndFx) is a core component of cardiovascular (CV) health and cardioprotection following acute myocardial infarction (AMI) treated with primary percutaneous coronary intervention (PCI).

Hypothesis: AMI patients experience endothelial dysfunction (EndDys), associated with traditional CV risk factors and sleep patterns. EndFx may also predict short and mid-term outcomes.

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Our previous study revealed the benefits of chronic melatonin intake on dynamic postural imbalance and poor walking capacity induced by multiple sclerosis but its impact on muscle weakness and poor manual dexterity related to this disease has not yet been explored. The objective of the current study was to investigate the effectiveness of 12-week melatonin supplementation on motor skills (i.e.

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To examine the effects of self-paced combined high-intensity interval training and resistance training (HIIT-RT) on oxidative stress, inflammation lipid profile and body composition in people with multiple sclerosis (PwMS). Twenty-three PwMS were randomly assigned to either a control group (CG, n = 12) or a training group (TG, n = 11). The TG performed a 12-week self-paced HIIT-RT (3 times/week).

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Aims: To evaluate the effectiveness of a dual approach involving time-restricted eating (TRE) at different times of the day combined with physical activity (PA) on functional capacity and metabolic health in overweight or obese women.

Methods: Random allocation of sixty-one participants into four groups: early time-restricted eating plus physical activity (ETRE-PA, n = 15, 31.8 ± 10.

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Multiple sclerosis (MS) can induce cardiac autonomic dysfunction identified by a decreased heart rate variability (HRV) which was linked to oxidative stress, vitamin D deficiency and sleep disturbance. Previous MS studies revealed the antioxidant and anti-inflammatory effects of exogenous melatonin, as well as its benefits on sleep and vitamin D. We aimed to investigate the change in HRV, oxidative stress, systemic inflammation and sleep following melatonin supplementation in MS patients.

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Background: This study aimed to investigate the effects of intradialytic concurrent (resistance-endurance) training combined with melatonin (MEL) supplementation on oxidative stress, inflammation, and cellular damage in hemodialysis (HD) patients.

Methods: Thirty-two HD patients were randomly assigned to three groups: Exercise (EX)-MEL, EX-Placebo (PLA), and Control (C)-PLA. Participants in the EX-MEL and EX-PLA groups underwent 12 weeks of concurrent training.

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Summary: High-resolution imaging of model organisms allows the quantification of important physiological measurements. In the case of fish with transparent embryos, these videos can visualize key physiological processes, such as heartbeat. High throughput systems can provide enough measurements for the robust investigation of developmental processes as well as the impact of system perturbations on physiological state.

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Studying the effects of self-paced concurrent high-intensity interval training and resistance training (HIIT-RT) on respiratory function, cardiopulmonary fitness and fatigue perception in patients with multiple sclerosis (PwMS). Twenty-three PwMS were randomized into a 12-week training group (three times per week) (TG, n = 11) or a control group (CG, n = 12). Lung function (spirometry), aerobic capacity (graded cardiopulmonary-exercise-testing) and perceived fatigue (Fatigue Severity Scale (FSS)) were evaluated pre- and post-intervention.

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Inconsistent sleep schedules, frequent awakening after sleep onset (WASO), and decreased sleep efficiency (SE) are common issues among adolescent team sports athletes. Moreover, research indicates that sleep problems are enhanced across schooldays. The aim of the present study was to assess sleep patterns of adolescent athletes and compare sleep parameters between schooldays and holidays.

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Objectives: In this study, we aimed to identify sleep patterns, physical fitness, and barriers to physical activity (PA) during Ramadan observance in a cohort of nonfasting individuals with type 1 diabetes (T1D).

Methods: Sixty-one nonfasting individuals with T1D, age 28.34±9.

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Wet-cupping therapy (WCT) is one of the oldest known medical techniques, used as a traditional and complementary therapy with a wide application all around the world for general health. Research on the effects of WCT on sports performance are sparse and inconsistent. Thus, we aimed to explore the effects of WCT on repeated sprint ability, wellness, and exertion in young active males.

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Unlabelled: This study aimed to evaluate the impact of time-restricted eating (TRE) on neuro-physiological parameters, objective and subjective sleep, pulmonary capacity, and postural balance among women with excess body weight.

Methods: Thirty-one participants were assigned to either a TRE group (n = 15, 28.74 ± 9.

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Article Synopsis
  • Persons with multiple sclerosis (PwMS) often face issues like sleep disturbances, fatigue, and pain, which can affect their balance and walking, potentially increasing fall risk.
  • This study investigated the long-term effects of chronic melatonin supplementation on PwMS, comparing a melatonin group with a placebo group over 12 weeks.
  • Results showed improvements in dynamic postural stability, walking performance, sleep quality, fatigue perception, and neuropathic pain in the melatonin group, suggesting it could be beneficial for managing symptoms in PwMS.
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Sleep and autonomic nervous system (ANS) influence each other in a bidirectional fashion. Importantly, it has been proposed that sleep has a beneficial regulatory influence over cardiovascular activity, which is mostly controlled by autonomic regulation through the activity of sympathetic and parasympathetic pathways of the ANS. A well-established method to non-invasively assess cardiac autonomic activity is heart rate variability (HRV) analysis.

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Objectives: In this study, we explore the impact of postprandial exercise timing (morning vs evening) on glycemia in individuals with type 1 diabetes (T1D) during short all-out sprints on a cycle ergometer.

Methods: Ten healthy, physically sedentary male (n=7) and female (n=3) volunteers with T1D, 22.8±2.

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Objective: The purpose of this study was to examine the long-term effects of time-restricted eating (TRE), with or without high intensity functional training (HIFT), on body composition and cardiometabolic biomarkers among inactive women with obesity.

Methods: Sixty-four women (BMI = 35.03 ± 3.

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Nocturnal smartphone use emits blue light, which can adversely affect sleep, leading to a variety of negative effects, particularly in children. Therefore, the present study aimed to determine the effect of acute (AC) (one night) and repeated (RC) (five nights) nocturnal smartphone exposure on sleep, cortisol, and next-day performance in Tunisian children. Thirteen participants (seven girls and six boys, age 9 ± 0.

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Long-term hyperglycemia in individuals with type 2 diabetes (T2D) can detrimentally impact pulmonary function and muscle oxygenation. As a result, these factors can impede the body's adaptation to physical exertion. We aimed to evaluate the oxygen pathway during maximal exercise among overweight/obese individuals with type 2 diabetes free from complications, in comparison with a group of matched overweight/obese individuals without diabetes, specifically concentrating on the effects on pulmonary function and muscle oxygenation.

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The rise of artificial intelligence (AI) applications in healthcare provides new possibilities for personalized health management. AI-based fitness applications are becoming more common, facilitating the opportunity for individualised exercise prescription. However, the use of AI carries the risk of inadequate expert supervision, and the efficacy and validity of such applications have not been thoroughly investigated, particularly in the context of diverse health conditions.

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Background: Decreased endogenous melatonin concentrations in people with multiple sclerosis (PwMS) are associated with fatigue and pain that impair postural balance and muscle strength. Melatonin ingestion had analgesic and anti-fatigue effects. However, the acute effect of exogenous melatonin on dynamic postural stability and muscle strength has not been studied yet in PwMS.

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Article Synopsis
  • - The study aimed to explore the impacts of combining resistance and endurance training with walnut consumption on strength, sleep quality, cognitive performance, and balance in active elderly men.
  • - In a controlled experiment with 20 participants, one group consumed walnuts while undergoing the training, and results were measured before and after the intervention.
  • - Findings showed that both groups improved knee strength and sleep quality, but only the walnut group exhibited enhanced cognitive performance and better postural balance, indicating walnuts may provide additional benefits alongside training.
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Monitoring key physiological metrics, including heart rate and heart rate variability, has been shown to be of value in exercise science, disease management, and overall health. The purpose of this study was to investigate the diurnal variation of physiological responses and physical performances using digital biomarkers as a precise measurement tool during a walking football match (WFM) in higher-weight men. Nineteen males (mean age: 42.

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Article Synopsis
  • - The study investigates how taking melatonin at night influences cognitive and physical performance the next day, particularly in professional soccer players.
  • - Results showed that melatonin improved sleep quality and led to better performances in tests like handgrip strength, squat jump, and reaction time, alongside decreases in perceived exertion and fatigue.
  • - Despite these benefits, levels of blood lactate and glucose remained unchanged after melatonin ingestion, suggesting specific performance enhancements without affecting these metabolic markers.
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