Effect of Nap on Daytime Functioning in Primary School Students

Sleep Deprivation Clinical Trial

Official title:

Effects of Short Daytime Nap on Neurocognitive Functioning and Behavior in Chinese Primary School Children

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT04270539
• Other study ID #: EA1807008
• Status: Completed
• Phase: N/A
• Start date: December 1, 2018
• Est. completion date: December 1, 2020

Study information

• Verified date: April 2021
• Source: The University of Hong Kong
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial 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.

Description:

This study is an interventional study testing the effects of short daytime nap on children's cognitive functioning and daytime behaviour. Primary school children will be randomised to either experimental (nap) or control group (no nap) by class. Measurements include parent-report questionnaires, children's self-report questionnaires, and cognitive tasks.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 654
• Est. completion date: December 1, 2020
• Est. primary completion date: May 1, 2020
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 5 Years to 15 Years

Eligibility

Inclusion Criteria:

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

Exclusion Criteria:

• Children ages 4 or younger, ages 15 or older

Related Conditions & MeSH terms

• Sleep Deprivation

Intervention

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

Locations

Country	Name	City	State
Hong Kong	Sleep Research Clinic & Laboratory, Department of Psychology, The University of Hong Kong	Hong Kong

Sponsors (2)

Lead Sponsor	Collaborator
The University of Hong Kong	Chinese University of Hong Kong

Country where clinical trial is conducted

Hong Kong, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	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
Primary	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
Primary	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
Primary	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
Primary	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
Primary	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	Change in daytime sleepiness	Daytime sleepiness as measured by Pediatric Daytime Sleepiness Scale (PDSS). Higher scores suggest more sleepiness.	Day 1 (before napping), Day 1 (after napping), two weeks and two months after intervention
Secondary	Change in daytime behaviour (emotional & behavioural problems)	Daytime behaviors as measured by Strengths and Difficulties Questionnaires (SDQ). Higher scores suggest more emotional and behavioural problems.	Day 1 (before napping), Day 1 (after napping), two weeks and two months after intervention
Secondary	Change in daytime behaviour (ADHD symptoms)	Strengths and Weakness of Attention-Deficit/ Hyperactivity-symptoms and Normal-behaviors (SWAN). Higher scores suggest more severe ADHD symptoms	Day 1 (before napping), Day 1 (after napping), two weeks and two months after intervention