Relationship between fatigue evaluation method aimed at early detection of fatigue during nighttime work and dietary habits and trace element nutrition

Relationship between fatigue evaluation method aimed at early detection of fatigue during nighttime work and dietary habits and trace element nutrition - Nighttime work fatigue investigation with dietary survey and trace elements

Status

Recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000033679

Enrollment

Registered

2018-08-08

Start date

2017-07-01

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

none

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: For hospital staff, the hospital director is determined to be able to work at night, staff members who are in the shift to night work got cooperation, and informed consent was obtained. For university staff, the judgment result by the industrial physician shall be persons who are regarded as healthy in terms of employment: normal work, medical aspects: or equivalent. For students, the results of health checks shall comply with the judgment standards of staff.

Exclusion criteria

Exclusion criteria: none

Design outcomes

Primary

Measure	Time frame
Before nighttime work, During nighttime work, After nighttime work 1) Objective fatigue evaluation 1)-1 Flicker test 1)-2 Salivary Amylase 1)-3 Salivary Cortisol	—

Secondary

Measure	Time frame
2) Subjective fatigue evaluation 2)-1 Visual Analogue Scale (VAS) 2)-2 Subjective symptoms checkup 3) Trace elements in plasma 4) Fatigue Evaluation and dietary survey	—

Countries

Japan

Contacts

Public ContactSatomi, Kameo

Gunma University Department of Public Health, Graduate School of Medicine

skameo-t@gunma-u.ac.jp027-220-8013

Outcome results