Accompanying survey on the effects of a shift change at a plant fire department on well-being, sleep, and health

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

DRKS

Registry ID

DRKS00037710

Enrollment

Registered

2025-09-02

Start date

2025-10-06

Completion date

Unknown

Last updated

2026-06-22

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

Conditions

well being

Interventions

Group 1: Employees of a plant fire department whose shift model is being changed from an 8-hour three-shift system to a 24-hour shift model including work, standby, and rest periods. Examinations 1–5

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: At the time of the preliminary examination (t0), a study participant must have been working for at least 3 months in the current fast-rotating 3-shift system of the Ingolstadt plant fire department and must switch to the new 24-hour single-shift system on the intervention day (shift system change), in which they must remain at least until the time of the final data collection (t2). - Since participation is voluntary, only subjects who have given their consent prior to the start of data collection can take part in the study. - Participants must be of legal age.

Exclusion criteria

Exclusion criteria: Firefighters who do not meet the above-mentioned inclusion criteria or who withdraw their consent will be excluded from the study.

Design outcomes

Secondary

Measure	Time frame
-Well-being, comparing t0 (1–5 weeks before the shift change) to t2 (6–7 months after the shift change) (WHO-5) - Sleep quality (t0 to t1) (PSQI) - Physical activity (t0 to t1) (IPAQ-SF) - Subjective work-life balance (t0 to t1) (TKS-WLB) - Experienced work-family conflict (in both directions) (t0 to t1) (WAFCS) - Changes in eating behavior (t0 to t1) - Changes in blood pressure, heart rate, body weight, body fat percentage, complete blood count (CBC), and metabolic parameters from venous blood as cardiovascular, metabolic, and inflammatory risk factors and indicators of chronic stress (t0 to t1) - Changes in the above-mentioned secondary outcomes between t1 and t2 as well as t0 and t2 (6–7 months after the shift change) to demonstrate long-term effects	—

Measure

Time frame

-Well-being, comparing t0 (1–5 weeks before the shift change) to t2 (6–7 months after the shift change) (WHO-5) - Sleep quality (t0 to t1) (PSQI) - Physical activity (t0 to t1) (IPAQ-SF) - Subjective work-life balance (t0 to t1) (TKS-WLB) - Experienced work-family conflict (in both directions) (t0 to t1) (WAFCS) - Changes in eating behavior (t0 to t1) - Changes in blood pressure, heart rate, body weight, body fat percentage, complete blood count (CBC), and metabolic parameters from venous blood as cardiovascular, metabolic, and inflammatory risk factors and indicators of chronic stress (t0 to t1) - Changes in the above-mentioned secondary outcomes between t1 and t2 as well as t0 and t2 (6–7 months after the shift change) to demonstrate long-term effects

—

Primary

Measure	Time frame
Well-being assessed using the WHO-5 questionnaire, comparing t0 (1–5 weeks before the shift change) to t1 (6–10 weeks after the shift change)	—

Countries

Germany

Contacts

Public ContactAndrea Kaifie-Pechmann

Institut und Poliklinik für Arbeits-, Sozial- und Umweltmedizin Friedrich-Alexander-Universität Erlangen-Nürnberg

andrea.kaifie-pechmann@fau.de+49 9131 85-22312

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Jun 29, 2026