Circadian Rhythm and Health in Heavy Industry Shift Workers
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: Questionnaire-Based Assessment.
- Who it may be relevant to
- Registry conditions: Shift Work Disorder, Shift Work Type Circadian Rhythm Sleep Disorder. Basic parameters: 18 years — 65 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- Turkey (Türkiye)
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
Unsure about the terms? Read our patient guide →
Official title
Investigation of Circadian Rhythm, Musculoskeletal Pain, Sleep Quality, and Quality of Life Among Heavy Industry Shift Workers: A Cross-Sectional Study
Overview
Shift work can disrupt the body's circadian rhythm, which may negatively affect sleep, musculoskeletal health, and quality of life. Heavy industry workers who perform rotating or night shifts may be particularly vulnerable to these health problems. This cross-sectional observational study will evaluate circadian rhythm characteristics, musculoskeletal pain, sleep quality, and quality of life among heavy industry shift workers. Participants will complete validated questionnaires assessing chronotype, musculoskeletal symptoms, sleep quality, and quality of life. The study will examine the associations between chronotype and these health outcomes and compare the results across different chronotype groups. The findings may contribute to a better understanding of the health effects of shift work and support the development of occupational health strategies for shift workers
Interventions
- Other Questionnaire-Based Assessment
Participants will complete validated self-administered questionnaires to assess chronotype, musculoskeletal pain, sleep quality, and quality of life. No therapeutic intervention will be administered.
Primary outcome measures
- Morningness-Eveningness Questionnaire (MEQ) [Time frame: At enrollment (single assessment)]
Secondary outcome measures (3)
- Cornell Musculoskeletal Discomfort Questionnaire (CMDQ) [Time frame: At enrollment (single assessment)]
- Pittsburgh Sleep Quality Index (PSQI) [Time frame: At enrollment (single assessment)]
- World Health Organization Quality of Life-BREF (WHOQOL-BREF) [Time frame: At enrollment (single assessment)]
Eligibility criteria
Inclusion criteria
- Ages 18-65
- Working in a shift system for at least 3 months
- Agreeing to participate in the work voluntarily
- Being a shift worker
Exclusion criteria
- Presence of using any medication that may affect alertness or muscle activity
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Study design
- Observational model
- Other
Study locations
Turkey (Türkiye) · 1 center
- Istanbul Gedik University — Istanbul
Identifiers
NCT: NCT07702344 · E-10840098-50.04-3312