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39 results for “Chronotypes”
Personality and chronotype: a latent variable perspective
<p>This dataset serves as supplementary material for the referenced article.</p>
Students' chronotype predicts performance in a Brazilian full-time middle school
<p>The performance, whether satisfactory or unsatisfactory, achieved in day-to-day tasks may vary according to several environmental synchronizers, such as 24-hour light-dark cycle. For instance, the human performance on physical and/or cognitive demanding activities achieve its best during day, when body temperature reaches a circadian peak. Moreover, individual differences in the circadian peaks in temperature along with individuals’ timing of sleep is referred to as chronotype. Here, we aimed to answer if in a Brazilian full-time school of early start time (a) the chronotypes affect the students’ performance; (b) there are differences between the students’ performance according to their chronotypes. We expected to find (a) a positive effect of the morning chronotype on the students’ performance, particularly in subjects that take place in early morning; (b) while a negative effect of the evening chronotype in that same period. To address the effect of the chronotype on the students’ scholar performance we build a Generalized Linear Mixed Model (GLMM). Results show that the students’ chronotype affects both their subjective and school-declared performance. In sum, we add evidence for the effect that individual chronotypes have on the students’ performance in a Brazilian full-time middle school. Our results shows that evening-type students are expected to have an increase of 0.038 (p = <0.05) log counts on their performance in Portuguese classes compared to other chronotypes. Results also support the hypothesis that the students’ performance is partially because of their chronotype. Distinctive features of the studied Brazilian full-time middle school are discussed.</p>
CHRONOtype-adjusted DIET on Weight Loss
ClinicalTrials.gov study NCT03755674. IPD Sharing: NO. Countries: 0. Publications: 1.
Chrono-ALIGN: A Chronotype-Based Chrono-Nutrition Intervention in Post-Bariatric Patients
ClinicalTrials.gov study NCT07324044. IPD Sharing: NO. Countries: 1. Publications: 0.
Sleep Disorders, Chronotype, and Functional Impairment in the Restrictive ADHD Phenotype
ClinicalTrials.gov study NCT06970418. IPD Sharing: UNDECIDED. Countries: 1. Publications: 0.
The Effect of Chronotype on Motivation and Academic Achievement in Students Trained With a Flipped Learning Approach
ClinicalTrials.gov study NCT07391865. IPD Sharing: NO. Countries: 0. Publications: 0.
Effect of chronotype on motor skills specific to soccer in adolescent players
<p>ABSTRACT</p> <p>Circadian rhythms influence daily behavior, psychological and physiological functions, as well as physical performance. Three chronotypes are distinguished according to the preferences people typically display for activity at certain times of day: Morning, Neither, and Evening types (M-, N- and E-types). The chronotype changes with age: eveningness tends to be stronger in youth and morn- ingness in older age. The progressive shift toward eveningness during adolescence creates misalign- ment with morning society schedules and can lead to a deterioration in intellectual and physical performance. Soccer is one of the world’s most popular sports practiced by adolescents and soccer workouts are usually held after school in the afternoon or evening. Performance in soccer is related to a host of factors, including physiological variables and motor skills that have a circadian variation. The aim of this study was to determine the effect of chronotype on motor skills specific to soccer, specifically whether agility, aerobic endurance, and explosive power differ among the three chron- otypes in relation to the time of day. For this study 141 adolescent soccer players filled in the Morningness-Eveningness Questionnaire (MEQ) for the assessment of chronotype. A subsample of 75 subjects, subdivided in M-types (n= 25), E-types (n= 25), and N-types (n= 25), performed three tests (Sargent Jump Test - SJT, Illinois Agility Test - IAT, and 6-Minutes Run Test - 6MRT) at a morning and an evening training session (9:00 am and 6:00 pm). Mixed ANOVA was used to test the interactions between chronotypes, physical performance, and time. On all tests, better performance during the morning than the evening session was observed for the M-types (p< .05), whereas the E-types performed better in the evening than in the morning session (p< .05), and no differences in test performance were detected for the N-types. These findings underline the importance of a correct chronobiological approach to sports training. Scheduling training sessions according to an athlete’s circadian preferences could be a valid strategy to enhance performance.</p>
Association Between the Individual Chronotype and Body Composition in German Students - The ChroNu Study
ClinicalTrials.gov study NCT04302922. IPD Sharing: UNDECIDED. Countries: 1. Publications: 0.
EAT-Lancet Diet, Chronotype, and Well-Being in Obesity
ClinicalTrials.gov study NCT07168967. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Effects of Exercıse on Chronotype, Sleep Qualıty and Depressıon Symptom Level in Unıversıty Students
ClinicalTrials.gov study NCT06981702. IPD Sharing: NO. Countries: 1. Publications: 0.
Impact of Chronotype-Based Time-Restricted Eating on Visceral Fat and Metabolic Health in Physically Inactive Adults With Central Obesity
ClinicalTrials.gov study NCT07062315. IPD Sharing: NO. Countries: 1. Publications: 0.
Sleep and Chronotype in Children With Type 1 Diabetes
ClinicalTrials.gov study NCT04978662. IPD Sharing: NO. Countries: 1. Publications: 0.
The Influence of Light Exposure on Exercise Performance Dependent on Chronotype.
ClinicalTrials.gov study NCT02203539. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Effects of CBT and BLT in Youth With Unipolar Depression and Evening Chronotype
ClinicalTrials.gov study NCT06092411. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Effect of Continuous Positive Airway Pressure on Chronotype, Dietary Intake, and Cardiovascular Risk Markers
ClinicalTrials.gov study NCT04262960. IPD Sharing: NO. Countries: 1. Publications: 0.
Time-restricted Eating in Morning Chronotype
ClinicalTrials.gov study NCT04618133. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Examining the Relationship Between Physical Activity Levels and Chronotype Tendencies in Individuals With Alcohol Dependence
ClinicalTrials.gov study NCT06850428. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Chronotype and Myofascial Pain Syndrome,
ClinicalTrials.gov study NCT06707675. IPD Sharing: NO. Countries: 0. Publications: 0.
Sex Differences in the Relationship between Chronotype and Eating Behaviour: A Focus on Binge Eating and Food Addiction
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