View clinical trials related to Sleep Restriction.
Filter by:This research aims to investigate the interplay between menstrual cycles, sleep patterns, and athletic performance. Before experimental sessions, participants will maintain menstrual diaries for three months and complete assessments for sleep disorders and chronotype. Sleep duration will be objectively measured over five nights using actigraphy, complemented by sleep-related data from an actigraph and the Karolinska Sleep Diary. The study involves two sessions: normal sleep (based on habitual duration) and restricted sleep (reduced by 3 hours). Athletes will engage in a simulated match-play game before both sessions, followed by comprehensive performance tests the next day. Blood samples will be collected at three intervals to analyze hormonal profiles (including progesterone, and estradiol), markers of muscle damage, inflammation, stress (such as TNF-α, IL-6, CRP, myoglobin, cortisol, testosterone), and brain-derived neurotrophic factor (BDNF). On Day 1, pre- and post-training blood samples will be obtained, and participants will wear an actigraph, adhere to specified bedtime routines, and report activities (restricted sleep group). Day 2 involves completing a sleep diary, refraining from caffeine, responding to questionnaires assessing readiness to train and mood, and undergoing performance tests followed by self-reporting of pain levels and perceived exertion using established scales (VAS, RPE 6-20).
Chronic sleep restriction is ubiquitous in both the general population and the military. The deleterious effects of sleep loss on human alertness and cognitive performance have been documented in numerous studies dating back to the nineteenth century. Over the past decade, evidence has emerged indicating that chronic sleep restriction may also precipitate deleterious, long lasting neuropathological changes in the brain. The purpose of this study is to determine neuropathological effects of sleep restriction and identify physiological mechanisms that correlate with sleep loss-induced performance impairment.
The study aims is to investigate the effects of sleep restriction on sweet and fat taste perception and preference in both fasted and fed states. This is a randomised crossover trial with sleep restriction (4 hours per night for 2 nights) and normal sleep (at least 8 hours sleep for 2 nights) conditions, with a four-week washout period between conditions.
The purpose of this study is to determine if brief sounds or tones presented within a restricted period of recovery sleep after a period of sleep deprivation will enhance restorative properties and improve performance during a subsequent period of wakefulness.