The Effects of Sleep Variability in Youth

NCT ID: NCT04263428

Last Updated: 2021-05-11

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

41 participants

Study Classification

INTERVENTIONAL

Study Start Date

2019-06-01

Study Completion Date

2021-01-01

Brief Summary

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Daily sleep variability is prevalent in the young populations, yet its effects remain less clear. The experimental study aims to examine the impacts of intraindividual daily sleep variability on sleep characteristics, cardiometabolic regulations and daytime functioning in college students.

Detailed Description

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Conditions

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Sleep Variability

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

NONE

Study Groups

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Irregular sleep

Participants sleep in lab while being monitored with polysomnography for 8 consecutive nights, including an adaptation night and a baseline night of 7.5 h time in bed (0:00-7:30). Afterwards, they are instructed to sleep in bed on a schedule alternated between 6 h, i.e. 1:30-7:30, and 9 h, i.e. 22:30-7:30).

Group Type EXPERIMENTAL

Irregular sleep

Intervention Type BEHAVIORAL

Experimental-induced sleep variability

Regular sleep

Participants sleep in lab while being monitored with polysomnography for 8 consecutive nights of 7.5 h time in bed (0:00-7:30).

Group Type NO_INTERVENTION

No interventions assigned to this group

Interventions

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Irregular sleep

Experimental-induced sleep variability

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

* Habitual sleep duration \> 7 h/day.

Exclusion Criteria

* Extreme morning- nor extreme evening-chronotype
* With sleep problems
* With mood and anxiety problems
* With excessive daytime sleepiness
* Have history of any chronic medical condition and on regular medication.
Minimum Eligible Age

18 Years

Maximum Eligible Age

25 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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The University of Hong Kong

OTHER

Sponsor Role lead

Responsible Party

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Dr. Shirley Xin Li

Director of the Sleep Research Clinic and Laboratory

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Dr. Shirley X. Li

Role: PRINCIPAL_INVESTIGATOR

The University of Hong Kong

Locations

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Sleep Research Clinic & Laboratory, Department of Psychology, The University of Hong Kong

Hong Kong, , Hong Kong

Site Status

Countries

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Hong Kong

Other Identifiers

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EA1708030

Identifier Type: -

Identifier Source: org_study_id

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