Effect of Nap on Daytime Functioning in Primary School Students

NCT04270539 | Completed

• 1 other identifier: EA1807008
• Study Type: interventional
• Target: 654
• Locations: 1 country
• Sites: 1

Brief Summary

Previous studies showed that insufficient sleep has a negative impact on children's physical and psychological health. Napping was found to decrease sleepiness and improve daytime functioning in adults and adolescents. The effects of napping on children, however, is unknown. The current study aims to test the effects of short daytime classroom naps on daytime functioning and behaviour in elementary school children.

Conditions

Sleep Deprivation

Keywords

primary school children; nap; sleep deprivation

Outcome Measures

Primary Outcomes (6)

• Change in objectively measured cognitive performance (sustained attention)

  Reaction time (ms) in psychomotor vigilance task

  Day 1 (before napping), Day 1 (after napping), two weeks and two months after intervention

• Change in objectively measured cognitive performance (sustained attention)

  Lapses defined by reaction time (RT) more than 500ms in psychomotor vigilance task

  Day 1 (before napping), Day 1 (after napping), two weeks and two months after intervention

• Change in objectively measured cognitive performance (inhibitory control)

  false alarm rate (%) in Go-no go task

  Day 1 (before napping), Day 1 (after napping), two weeks and two months after intervention

• Change in objectively measured cognitive performance (inhibitory control)

  reaction time (ms) in Go-no go task

  Day 1 (before napping), Day 1 (after napping), two weeks and two months after intervention

• Change in objectively measured cognitive performance (working memory)

  reaction time (ms) in match to sample task

  Day 1 (before napping), Day 1 (after napping), two weeks and two months after intervention

• Change in objectively measured cognitive performance (working memory)

  accuracy in match to sample task

  Day 1 (before napping), Day 1 (after napping), two weeks and two months after intervention

Secondary Outcomes (3)

• Change in daytime sleepiness

  Day 1 (before napping), Day 1 (after napping), two weeks and two months after intervention

• Change in daytime behaviour (emotional & behavioural problems)

  Day 1 (before napping), Day 1 (after napping), two weeks and two months after intervention

• Change in daytime behaviour (ADHD symptoms)

  Day 1 (before napping), Day 1 (after napping), two weeks and two months after intervention

Study Arms (2)

Experimental Group (nap)

EXPERIMENTAL

The experimental group will be allowed to take a brief nap daily on school days during the study period.

Behavioral: Nap

Control Group (no nap)

NO INTERVENTION

The control group will not be allowed to take daily nap on school days during the study period.

Interventions

Nap BEHAVIORAL

Participants will be given 20-min nap opportunity in the classroom on a daily basis during school-days.

Experimental Group (nap)

Eligibility Criteria

• Age: 5 Years - 15 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Child (0-17)

You may qualify if:

• Children from grade 1, 2, 3, 5, and 6

You may not qualify if:

• Children ages 4 or younger, ages 15 or older

Sponsors & Collaborators

• The University of Hong Kong: lead
• Chinese University of Hong Kong: collaborator

Study Sites (1)

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

Hong Kong, Hong Kong

Location

MeSH Terms

Conditions

Sleep Deprivation

Condition Hierarchy (Ancestors)

Dyssomnias; Sleep Wake Disorders; Nervous System Diseases; Neurologic Manifestations; Signs and Symptoms; Pathological Conditions, Signs and Symptoms; Mental Disorders

Study Officials

• Shirley X. Li, PhD, DClinPsy

  The University of Hong Kong

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: SINGLE
• Who Masked: OUTCOMES ASSESSOR
• Masking Details: Assessors who are responsible for conducting the cognitive tests are blinded to the group allocation.
• Purpose: TREATMENT
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Assistant Professor

Model Details: Experimental group (with daytime classroom nap) versus control group (without nap)

Study Record Dates

• First Submitted: February 3, 2020
• First Posted: February 17, 2020
• Study Start: December 1, 2018
• Primary Completion: May 1, 2020
• Study Completion: December 1, 2020
• Last Updated: April 27, 2021

Record last verified: 2021-04

Locations

HK (1)