The effect of two different type of light-emitting devices on serum vitamin D level in healthy adults

The effect of two attachable light-emitting devices of different wavelengths on serum vitamin D level in healthy adults

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

CRIS

Registry ID

KCT0008207

Enrollment

255

Registered

2023-02-21

Start date

2023-02-10

Completion date

Unknown

Last updated

2023-03-06

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

Conditions

None listed

Interventions

Others(health aids) : We conducted a randomized, single-blind, placebo-controlled parallel study. Healthy adults subjects randomly assigned in a 1:1:1 ratio to either the two different experimental gr

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: (1) Healthy adults, aged 20 to 65 years

Exclusion criteria

Exclusion criteria: (1) history of light therapy or vitamin D supplementation within two months prior to study entry (2) skin diseases including skin cancers and photosensitivity (3) medical illnesses such as malignancy, respiratory diseases, infectious diseases, hepatic or renal impairment, and head trauma (4) psychiatric disorders including mood disorders, anxiety disorders, sleep disorders, and psychotic disorders.

Design outcomes

Primary

Measure	Time frame
Serum 25-hydroxyvitamin D concentration	—

Secondary

Measure	Time frame
Pittsburgh sleep quality index, Insomnia severity index, Epworth sleepiness scale, Fatigue severity scale, Hospital anxiety and depression scale;Sleep onset latency, Total sleep time, Wake after sleep onset, Sleep efficiency	—

Countries

Korea, Republic of

Contacts

Public ContactHyuk Joo Lee

Seoul National University Bundang Hospital

hjlee84.hl@gmail.com+82-31-787-7433

Outcome results