Sleep Disorder Circadian Rhythm, Delayed Sleep Phase Type
Conditions
Keywords
Adolescent, Population-based, Social jetlag, Intervention, Bright light, Motivation, Circadian regulation, Behavioral change
Brief summary
Adolescence associates with alterations in sleep-wake organization, such as later circadian phase preference. Simultaneously external pressures, such as evening-driven social activities increase. These may lead to delayed sleep phase, which may cause serious problems for waking up at socially accepted times, and absenteeism from the school may follow. This project aims at tracking risk factors for later circadian regulation problems, characterizing interconnections of biological, psychological and behavioural mechanisms that maintain or induce poor sleep regulation in adolescence, and building a cost-effective, theoretically-based sleep intervention for adolescents with delayed sleep phase. This randomized control trial capitalizes on a new population-based cohort of 16-17-year olds.
Interventions
BEHAVIORALGamified intervention
A new mobile application for assisting in sleep regulation, duration 4-6 weeks
BEHAVIORALSleep coaching
A new personalized program, duration 4-6 weeks
DEVICEBright light
Morning bright light 10 000 lux maximum duration 4-6 weeks
OTHERControl
Minimal information on sleep timing and advancing the sleep rhythm
OTHERPsychoeducation
An extensive information platform in the internet created for this purpose
Sponsors
Academy of Finland
University of Helsinki
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
15 Years to 18 Years
Healthy volunteers
Yes
Inclusion criteria
* Late bedtime several times per week
Exclusion criteria
* Chronic disease that affects sleep. Ongoing therapeutic treatment relationship if considered overlapping by the participant
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Circadian sleep rhythm | 8 weeks | Actigraphy (brand GeneActiv) |
| Circadian body temperature rhythm | 8 weeks | iButton measurement from the wrist |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Sleep problems | 8 weeks | Pittsburgh Sleep Quality Index |
| Mood | 8 weeks | Experience sampling method, brand Psymate |
| Anxiety | 8 weeks | Generalized Anxiety Disorder questionnaire GAD-7 |
| Depression | 8 weeks | Beck Depression Inventory |
| Insomnia symptoms | 8 weeks | Bergen Insomnia Scale |
Countries
Finland
Outcome results
None listed