Adult
Conditions
Interventions
Four-hours light exposure to OLED lighting with less short-wavelength light before bedtime
Four-hours light exposure to OLED lighting before bedtime
Four-hours light exposure to general LED lighting b
Sponsors
KANEKA CORPORATION
Eligibility
Sex/Gender
Male
Inclusion criteria
Inclusion criteria: 1) Healthy Japanese males aged 18 to 35 years old 2) Those whose habitual bedtime is between 23:00 and 25:00 3) Those whose habitual sleep time is 7 to 9 hours
Exclusion criteria
Exclusion criteria: Individuals with 1) Any current medical treatment 2) Current or past psychiatric diseases 3) Sleep disorder 4) Sleep apnea syndrome or aware of sleep apnea 5) Any eye diseases 6) Intake of any medication 7) Intake of any quasi-drugs, health foods or supplements that may affect the study 8) PSQI >=6 9) MEQ <=30 or MEQ >=70 10) BMI >=25 11) AUDIT >=15 12) Current smokers 13) Current night-shift workers or shift workers 14) Traveling to time zone within the past month 15) Participation in other clinical trials within the past month 16) Allergic to metals or sensitive skin
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Objectively measured sleep latency | — |
Secondary
| Measure | Time frame |
|---|---|
| 1) Objectively measured sleep parameters (TST(min); N1, N2, N3, REM (min, %); SE(%); N3 onset latency(min); REM onset latency(min); WASO(min, %)) 2) Changes in sleep parameters (sleep latency(min); TST(min); N1, N2, N3, REM (min, %); SE(%); N3 onset latency(min); REM onset latency(min); WASO(min, %)) from baseline 3) Sleep questionnaire (Ogri-Shirakawa-Azumi sleep inventory MA version) 4) The number of rising during sleep time | — |
Countries
Japan
Contacts
Public ContactTomoki Kubo
KANEKA CORPORATION OLED Business Development Project Business Development Group Applied Technology Team
Outcome results
None listed