The effect of artificial sunlight and LED light exposure on blood pressure

The effect of artificial sunlight and LED light exposure on blood pressure - BP modulation by Artificial sunlight

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000052819

Enrollment

Registered

2023-11-17

Start date

2024-08-02

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

Interventions

Artificial sunlight high intensity exposure 6 minutes/artificial sunlight low intensity exposure 6 minutes/near infrared LED light exposure 6 minutes/no light (control) 6 minutes

Eligibility

Sex/Gender

Male

Inclusion criteria

Inclusion criteria: healthy men

Exclusion criteria

Exclusion criteria: anti-hypertensive medication sleep-inducing and anti-anxiety medication. glaucoma that requires treatment (excluding cases after treatment). Color vision abnormalities Diabetes requiring insulin therapy. Persistent arrhythmia Hospitalization within the past 3 months

Design outcomes

Primary

Measure	Time frame
Systolic/diastolic blood pressure	—

Secondary

Measure	Time frame
serum nitric oxide derived metabolites	—

Countries

Japan

Contacts

Public ContactRyoichi Nagatomi

Tohoku University Graduate School of Biomedical Engineering

nagatomi@med.tohoku.ac.jp022-717-8586

Outcome results

None listed

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