A Study on the Effect of Colored LED Lighting on Human Body in Living Room

A Study on the Effect of Colored LED Lighting on Human Body in Living Room - A Study on the Effect of Colored LED Lighting on Human Body in Living Room

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000044063

Enrollment

Registered

2021-07-01

Start date

2020-10-13

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy person

Interventions

2-hours experiment per week will be conducted 7 times. HRV will be measured through the experiment. Saliva will be obtained 5 times per one experiment.

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Students of Tokyo University of Science, aged 20-29. Healthy persons without insomnia, etc. Normal colour sense The meal should be done 2 hours before the experiment. Caffain drink should not be taken from 6 hours before the experiment. Excercise should refrain from 6 hours before the experiment. Alcohol should refrain from 24 hours before the experiment. No habitual use of drugs. HRV measurement and saliva gathering can be approved.

Exclusion criteria

Exclusion criteria: Those who do not satisfy the demands above.

Design outcomes

Primary

Measure	Time frame
HRV will be measured and saliva will be obtained within 2-hours experiment per week, and this section will be repeated 7 times.	—

Countries

Japan

Contacts

Public ContactNozomu Yoshizawa

Tokyo University of Science Department of Architecture, Faculty of Science and Engineering

yoshizawa@rs.tus.ac.jp04-7122-9468

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026