Biomaterial Database

Temporal patterns in psychophysiological activation in rotating shift workers--A follow-up field study one year after an increase in nighttime work. 1981

K Dahlgren

The study concerned the long-term effects of a weekly rotating day-night shift schedule on circadian functions. It was performed 1 h after the introduction of an increase in nighttime work and was a follow-up of a study performed one month after the change of workhours. Fourteen male typesetters were observed in connection with the first, fourth and seventh nightshifts of the "night week" and the two dayshifts of the "day week." Measurements were taken of body temperature and self-rated activation during awake periods, of adrenaline excretion during work and sleep, and of choice-reaction time during work. The results showed that a different pattern of variation in circadian functions was present 1 h after the increase in nighttime work when compared to the pattern one month after the increase. The change in pattern consisted mainly of a general flattening of the curves during both day and night work, although some changes from the beginning to the end of the nightshift week could still be noticed.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D009787	Occupational Medicine	Medical specialty concerned with the promotion and maintenance of the physical and mental health of employees in occupational settings.	Industrial Medicine,Medicine, Industrial,Medicine, Occupational
D010559	Personnel Management	Planning, organizing, and administering all activities related to personnel.	Client-Staff Ratio,Client Staff Ratio,Client-Staff Ratios,Management, Personnel,Ratio, Client-Staff,Ratios, Client-Staff
D010561	Personnel Staffing and Scheduling	The selection, appointing, and scheduling of personnel.	Staffing and Scheduling,Personnel Staffing,Work Schedule,Schedule, Work,Scheduling and Staffing,Staffing, Personnel,Work Schedules
D011930	Reaction Time	The time from the onset of a stimulus until a response is observed.	Response Latency,Response Speed,Response Time,Latency, Response,Reaction Times,Response Latencies,Response Times,Speed, Response,Speeds, Response
D001831	Body Temperature	The measure of the level of heat of a human or animal.	Organ Temperature,Body Temperatures,Organ Temperatures,Temperature, Body,Temperature, Organ,Temperatures, Body,Temperatures, Organ
D002395	Catecholamines	A general class of ortho-dihydroxyphenylalkylamines derived from TYROSINE.	Catecholamine,Sympathin,Sympathins
D002940	Circadian Rhythm	The regular recurrence, in cycles of about 24 hours, of biological processes or activities, such as sensitivity to drugs or environmental and physiological stimuli.	Diurnal Rhythm,Nyctohemeral Rhythm,Twenty-Four Hour Rhythm,Nycthemeral Rhythm,Circadian Rhythms,Diurnal Rhythms,Nycthemeral Rhythms,Nyctohemeral Rhythms,Rhythm, Circadian,Rhythm, Diurnal,Rhythm, Nycthemeral,Rhythm, Nyctohemeral,Rhythm, Twenty-Four Hour,Rhythms, Circadian,Rhythms, Diurnal,Rhythms, Nycthemeral,Rhythms, Nyctohemeral,Rhythms, Twenty-Four Hour,Twenty Four Hour Rhythm,Twenty-Four Hour Rhythms
D005500	Follow-Up Studies	Studies in which individuals or populations are followed to assess the outcome of exposures, procedures, or effects of a characteristic, e.g., occurrence of disease.	Followup Studies,Follow Up Studies,Follow-Up Study,Followup Study,Studies, Follow-Up,Studies, Followup,Study, Follow-Up,Study, Followup