Energy-efficient and Health Promoting Light for Elderly People

Sleep Clinical Trial

— light-age  

Official title:

A Study of Two Different Light Conditions for Healthy Subjects Above 65 Years

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT02216318
• Other study ID #: H-3-2013-085
• Status: Completed
• Phase: N/A
• Start date: October 2013
• Est. completion date: December 2013

Study information

• Verified date: August 2018
• Source: Glostrup University Hospital, Copenhagen
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

to investigate the effect of two lightning conditions on sleep hypothesizing that sleep length is influenced by the color of light during daytime

Description:

Lightning conditions seems to be important for the length and quality of sleep, as light have an influence on the production of the sleep hormone (melatonin) and the the circadian rhythm. Entrainment of the circadian rhythm to the surroundings is accomplished by light-sensitive retinal ganglion cells and these cells are sensitive to blue light.

Based on previous research, blue light early in the day and abscence of blue light during evening is important for the entrainment.

In this study, lightning conditions in the home of healthy subjects are set to either blue enriched or red enriched from 8 a.m to 1. p.m. The lightning condition is based on a randomization protocol in a cross-over study for 3 weeks in each condition, separated by a one week pause.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 29
• Est. completion date: December 2013
• Est. primary completion date: December 2013
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 65 Years to 85 Years

Eligibility

Inclusion Criteria:

• age 65 to 85 years

Exclusion Criteria:

• Conditions which will interfere by the primary endpoint as evaluated by the medical doctor

Related Conditions & MeSH terms

• Sleep

Intervention

Other:
• blue light

Locations

Country	Name	City	State
n/a

Sponsors (9)

Lead Sponsor	Collaborator
Glostrup University Hospital, Copenhagen	AF Lightning, Albertslund Kommune, DTU Fotonik, Elforsk, Gate 21, Philips Healthcare, Statens Byggeforskningsinstitut, VISO systems

Outcome

Type	Measure	Description	Time frame	Safety issue
Other	pupillometry	the pupillary response to blue and red light	the last day of each light period
Other	melatonin	timing of melatonin onset	the last day of each light period
Other	Questionnaire	Questionnaire count	3 weeks
Primary	Sleep length	The mean of sleep length during the last week of each light period	1 week
Secondary	actigraphy	mean sleep efficiency during the last week in each light period	1 week