hrvatski

Adaptacija na smjenski rad: longitudinalno istraživanje

OBJECTIVE European Directive on the organisation of working time (93/104/EC) requires a health assessment for night workers before their assignment to night work and thereafter at regular intervals. This study examined prospective shiftworkers before entering shiftwork and followed them up for nine years in order to find out whether their tolerance to shiftwork changed over the early phase of exposure to shiftwork. METHODS A group of workers, who started shiftwork for the first time at the age of 20 years, was followed. They worked in a rapid forward rotating three-shift system with shift changes at 6, 14 and 22 hours. They were examined before entering shiftwork and followed up five times, after reaching 1.5, 3.5, 5.5, 7.5 and 9.5 years of shiftwork experience. Out of 153 workers who started shiftwork 34 stayed on shifts for nine years. The following indices of tolerance were assessed before start of shiftwork and at each follow-up point: Sleep Quality, Neuroticism, Generally Poor Health, Musculo-Skeletal Complaints, Respiratory Complaints and Psychosomatic-Digestive Complaints. In addition, at each follow-up point the shift-specific indices of tolerance were assessed. These were Night and Morning Shift Tolerance and sleep duration on different days within a shiftwork cycle. Differences between repeated measurements were tested by means of MANOVA. RESULTS Intolerance to night shift, neuroticism, and health complaints (general health, psychosomatic-digestive and musculo-skeletal) increased in the observed period. Only tolerance to morning shift improved. Sleep quality remained high over this early phase of shiftwork exposure. Sleep duration on afternoon shifts, night shifts and days off reduced during the nine-year period, while sleep on morning shifts did not change. CONCLUSIONS This study shows that the effects of shiftwork over the first nine years differ with respect to tolerance measure analysed. Some measures indicate deterioration of coping, other adaptation to work, and some are unaltered by nine-years in shifts.

tolerancija prema smjenskom radu; ritam budnosti i spavanja; kvaliteta spavanja; neurotizam; zdravstveni problemi; tolerancija prema radu u jutarnjoj i noćnoj smjeni

nije evidentirano

engleski

Shiftwork adaptation: a longitudianl study

OBJECTIVE European Directive on the organisation of working time (93/104/EC) requires a health assessment for night workers before their assignment to night work and thereafter at regular intervals. This study examined prospective shiftworkers before entering shiftwork and followed them up for nine years in order to find out whether their tolerance to shiftwork changed over the early phase of exposure to shiftwork. METHODS A group of workers, who started shiftwork for the first time at the age of 20 years, was followed. They worked in a rapid forward rotating three-shift system with shift changes at 6, 14 and 22 hours. They were examined before entering shiftwork and followed up five times, after reaching 1.5, 3.5, 5.5, 7.5 and 9.5 years of shiftwork experience. Out of 153 workers who started shiftwork 34 stayed on shifts for nine years. The following indices of tolerance were assessed before start of shiftwork and at each follow-up point: Sleep Quality, Neuroticism, Generally Poor Health, Musculo-Skeletal Complaints, Respiratory Complaints and Psychosomatic-Digestive Complaints. In addition, at each follow-up point the shift-specific indices of tolerance were assessed. These were Night and Morning Shift Tolerance and sleep duration on different days within a shiftwork cycle. Differences between repeated measurements were tested by means of MANOVA. RESULTS Intolerance to night shift, neuroticism, and health complaints (general health, psychosomatic-digestive and musculo-skeletal) increased in the observed period. Only tolerance to morning shift improved. Sleep quality remained high over this early phase of shiftwork exposure. Sleep duration on afternoon shifts, night shifts and days off reduced during the nine-year period, while sleep on morning shifts did not change. CONCLUSIONS This study shows that the effects of shiftwork over the first nine years differ with respect to tolerance measure analysed. Some measures indicate deterioration of coping, other adaptation to work, and some are unaltered by nine-years in shifts.

shiftwork tolerance; sleep-wake rhythm; sleep quality; neuroticism; health complaints; morning and night shift tolerance

nije evidentirano