TY - JOUR PY - 1994// TI - Older workers and longer work days: are they compatible? JO - International journal of industrial ergonomics A1 - Keran, C. M. A1 - Duchon, J. C. A1 - Smith, T. J. SP - 113 EP - 123 VL - 13 IS - 2 N2 - As part of a larger shiftwork project, the U.S. Bureau of Mines conducted an extended workday study at an underground North American metal mine. A group of 25 underground shiftworkers changed from a 7-by-2, 8-hour shift schedule to a 4-by-4, 12-hour shift schedule. Data collected for both schedules consisted of subjective, psychomotor and physiological measures. The focus of this paper is to determine whether older workers (mean age = 49.6) manifest increased levels of fatigue compared to younger workers (mean age = 26.5) on 8-hour and 12-hour schedules. Results indicate that worker age influences all three types of measures for both schedules. However, these age differences do not appear to be more pronounced on the 12-hour relative to the 8-hour schedule. It can be argued, therefore, that older workers have no more difficulties with a 12-hour than with an 8-hour schedule.

LA - SN - 0169-8141 UR - http://dx.doi.org/ ID - ref1 ER -