6533b82bfe1ef96bd128dc7c

RESEARCH PRODUCT

EFFECTS OF SHIFT WORK ON CARDIOVASCULAR ACTIVITY, SERUM CORTISOL AND WHITE BLOOD CELLS COUNT IN A GROUP OF ITALIAN FISHERMEN

Emanuele CannizzaroCarla CannizzaroDaniela MartoranaSalvatore MoscadiniD. Lo Coco

subject

shift work cortisol leukocyte count heart rate vagal tone job strain circadian rhythmsSettore MED/44 - Medicina Del Lavoro

description

We analyzed the effects of working activity and working shifts on the circadian rhythmicity and circadian phase relations of serum cortisol level, white blood cells count, resting heart rate and systolic/diastolic blood pressure in a group of italian fishermen. We observed a shift-induced displacement of cortisol secretion and a modification in leukocyte count. Moreover, systolic/diastolic blood pressure and resting heart rate were markedly influenced by the night shift, whereas no appreciable changes were observed after the morning and afternoon shifts, compared to pre-working values. These data suggest that the human circadian system is greatly influenced by shift work, and serum cortisol level, leukocyte count, systolic and diastolic blood pressure, and resting heart rate are sensitive indicators of the biological responses to a stress workload in shift workers, especially after a night shift

yearjournalcountryeditionlanguage
2012-01-01
10.3269/1970-5492.2012.7.23http://hdl.handle.net/10447/67645