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The effect of time of day on anaerobic performance and blood lactate response in trained men: assessment in relation to chronotype
This study examined the effects of the time of day on anaerobic performance and blood lactate levels in 20 trained male athletes with intermediate type (IT) and close to evening type (CET) chronotypes. The athletes completed vertical jump and repe...
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Prokineticin 2 neurons form diverse subpopulations in the suprachiasmatic nucleus and rely on VPAC2-signaling for diurnal rhythmicity
IntroductionProkineticin 2 (PK2) is believed to function as an output molecule, relaying circadian rhythms of behavior and physiology from the suprachiasmatic nucleus (SCN). The expression of PK2 in the SCN is primarily driven by the molecular clo...
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The modulatory role of short-chain fatty acids on peripheral circadian gene expression: a systematic review
Circadian rhythm disruption significantly impacts health and causes a wide range of metabolic, cardiovascular, and psychiatric disorders. Changes in peripheral circadian clock expression are associated with the gut microbiome, particularly via the...
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Circadian influences on central nervous system barriers and the glymphatic system
The central nervous system (CNS), comprising the brain and spinal cord, is fortified by complex barriers that protect the underlying organs and maintain homeostasis. The importance of proper fortification and homeostatic regulation provided by the...
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Morning vs. evening: the role of exercise timing in enhancing fat oxidation in young men
ObjectiveThis study aimed to investigate the acute effects of exercise timing (morning vs. evening) on fat oxidation and energy expenditure in young men, with a focus on interactions between exercise and meal timing.MethodsEighteen male college st...
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The effect of time of day on visual reaction time performance in boxers: evaluation in terms of chronotype
IntroductionConsidering the impact of individual differences on athletes’ performance, chronotype emerges as a crucial variable in training program design. Chronotype influences an individual’s ability to achieve peak physical and cognitive perfor...
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Heart rate variability with circadian rhythm removed achieved high accuracy for stress assessment across all times throughout the day
BackgroundAssessing real-time stress in individuals to prevent the accumulation of stress is necessary due to the adverse effects of excessive psychological stress on health. Since both stress and circadian rhythms affect the excitability of the n...
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Circadian system coordination: new perspectives beyond classical models
BackgroundThis review examines novel interaction mechanisms contributing to the robustness of circadian rhythms, focusing on enhanced communication between the suprachiasmatic nucleus (SCN) and peripheral clocks. While classical models explain bio...
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