View clinical trials related to Adolescence.
Filter by:Anxiety disorders commonly begin during adolescence, and are characterized by deficits in the ability to inhibit or extinguish pathological fear. Recent research has provided new understanding of how fear is learned and can be regulated in the adolescent brain, and how the endocannabinoid system shapes these processes; however, these advances have not yet translated into improved therapeutic outcomes for adolescents with anxiety. This study will test whether a behavioral intervention, acute exercise, can help to improve fear regulation by enhancing brain activity and endocannabinoid signaling. This line of research may ultimately lead to more effect treatments for adolescent anxiety, and to new preventive strategies for at-risk youth.
The present study evaluates the effect of nursing care based on the Self-Care Deficit Nursing Theory on the knowledge and skills related to self-care among adolescents with Cystic Fibrosis.
This observational study is a first orientation on the effects and feasibility of a group training to plan and organize for adolescents with attention deficit disorder (ADHD). This study focuses on the following questions: - Is there an improvement on planning skills after training? - Are there fewer ADHD characteristics after training? - Is there an improvement on self-esteem after training? - How feasible is a group training for adolescents with ADHD? - How satisfied are practitioners and adolescents about the training? Based on the effect-size of the individual training variant, the literature on the effect of group treatment and the adolescent target group, in which the peer group gets more important, the hypothesis is that the group training Plan My Life Together will have a medium to large effect on planning skills. Furthermore, positive effects on ADHD characteristics and self-esteem are also expected. The assumption is that Plan My Life Together is feasible and suitable.
Circadian clocks shift later (delay) with the progression of puberty; this shift contributes to late sleep onsets in older adolescents. Early school start times, however, force teenagers to awaken earlier than their spontaneous wake time and the opportunity for sleep shortens. Chronic circadian misalignment and sleep restriction are at their peak during late adolescence, and are associated with various negative outcomes. Morning bright light exposure from light boxes can shift rhythms earlier (phase advance) to facilitate earlier sleep onset, and reduce circadian misalignment and the associated risks. Studies of adults, however, indicate that restricted sleep and exposure to evening light due to late bedtimes make morning bright light less effective in producing advances. Pilot data collected from adolescents mimic this finding, but also suggest that staying awake late in normal household lighting and the subsequent sleep restriction before and during a 3-day morning bright light regimen, can shift the system in the wrong direction (phase delay). The overarching goal of this study is to examine the dose of sleep restriction and evening household light that prevents the desired phase advance to morning bright light in adolescents aged 14-17 years. Study 1 aims to construct a sleep restriction with normal household evening light dose-response curve to determine the point at which morning bright light begins to lose its effectiveness. The investigators hypothesize that the circadian system will advance with sufficient sleep, but with increasing sleep restriction/evening light, circadian rhythms will not shift or will delay despite the phase advancing morning bright light. Study 2 will test whether reducing evening light exposure by wearing sunglasses before bedtime during sleep restriction can facilitate phase advances. The main outcome measures to build the dose-response curve will be phase shifts of the central circadian clock marked by the dim light melatonin onset (DLMO) and total sleep time measured from actigraphy in the laboratory. Secondary outcomes include cognitive performance, sleepiness, and mood.
In this one arm clinical trial, students of the 6th grade in a primary school participated in the PSAI for 8 weeks. Self-report questionnaires and hair cortisol concentrations were used for the evaluation of the aforementioned variables at baseline and at the end of the intervention.
Chronic circadian misalignment and sleep restriction peak during late adolescence, and are associated with morning daytime sleepiness, poor academic performance, conduct problems, depressed mood, suicidal ideation, substance use, insulin resistance, and obesity. Bright light exposure from light boxes can shift rhythms earlier (phase advance) to facilitate earlier sleep onset and reduce morning circadian misalignment and the associated risks. To phase advance circadian rhythms, the investigators' PRCs showed that the ideal time to begin light exposure was slightly before wake-up time and light should be avoided around bedtime because this is when light produces maximum phase delay shifts. An unexpected finding from these results, however, was a second advancing region in the afternoon (~6 to 9 h after habitual wake-up time) suggesting that afternoon light may have more circadian phase advancing ability than traditionally thought. The overall goal of this mechanistic study is to follow-up on the unexpected PRC findings and test whether individually-timed afternoon light alone and in combination with morning bright light can shift circadian rhythms earlier in older adolescents. Four groups will be compared in a randomized parallel group design: afternoon bright light, morning bright light, morning + afternoon bright light, and a dim room light control. Adolescents will complete a 2-week protocol. After a baseline week with a stable sleep schedule, adolescents will live in the laboratory for 7 days. Sleep/dark and the time of bright light exposure will gradually shift earlier. Bright light (~5000 lux) will be timed individually based on his/her stable baseline sleep schedule. The first 3-h morning bright light exposure will begin 1 h before wake on the first morning. The first 3-h afternoon bright light exposure will begin 5 h after wake. The morning + afternoon exposures will begin at the same times, but each exposure will be 1.5 h so that a total of 3 h of bright light per day will be given to each group except the dim light control group. Phase shifts of the circadian clocks marked by the dim light melatonin onset (DLMO) is the main outcome. Investigators hypothesize that afternoon bright light will work synergistically with morning bright light to produce larger shifts than morning or afternoon bright light alone. These data could challenge the current understanding of how to use bright light to shift circadian rhythms earlier.
The aim is to quantify the effects of one dose of caffeine (compared to placebo) on sleep and wakefulness in adolescents.
The investigators aim to 1) speed up access to and delivery of PrEP to young women, and 2) compare interventions to support and maximize the prevention-effective use of PrEP. Specifically, the investigators aim to answer the following two questions: 1) how can the study use existing community-based platforms to identify and deliver PrEP to those in need? and 2) which adherence support interventions are most likely to engender effective use of PrEP? The investigators propose to answer these questions by leveraging existing community-based HIV testing platforms in South Africa and use a mixed methods approach to optimize the PrEP cascade and evaluate a community-based PrEP adherence program for young women.
This is a prospective study comparing two groups of 48 adolescent women each. The intervention group will receive a contraceptive implant postpartum, prior to discharge from the hospital. The control group will receive a contraceptive implant at the usual 6 week postpartum clinic visit. During prenatal care, participants will be consented and screened for enrollment. After delivery, these women will be assessed and consented for enrollment into the study. Women who consent for enrollment will be randomized. Women will be followed up at 3 months, 6 months, 9 months, and 1 year after contraceptive implant insertion. At each follow up, women will be assessed for continuation of and satisfaction with this method of contraception.
Economic globalisation has been associated with a rise of cross-border migration in Europe. In France, courts commonly demand appropriate medical tests aimed at age estimations of supposed minors without documentation. Determining the age of foreign adolescents may be important in order to define the rights and protection afforded them by law depending on this status, and the conditions in which they may be detained or held in police custody if they are under suspicion. Age estimation is considered to be ideally based on the combination of clinical, skeletal, and dental examinations. A number of forensic physicians do not integrate published recommendations or the results of published studies into their daily practice. Previous studies have shown that medical practice is heterogeneous in this area. Factors determining this heterogeneity are unknown. We hypothesize that the personal and professional development of the physician, as well as the characteristics and the circumstances of medical examination can affect medical response on age determination, beyond clinical and radiological data. The purpose of this study is to identify factors determining medical response to courts.