This study aimed to assess fatigue among onshore oil rig shift workers in a petroleum company working in swing shifts. The work schedule consisted of 12 h of night shifts for one week followed by 12 h of day shifts for one week. Fatigue was assessed using both subjective and objective measurements which were visual analogue fatigue scale (VAFS) and simple reaction time (SRT) test, respectively. A total of 38 male onshore oil rig shift workers participated in this study. Fatigue assessment was conducted at the start and at the end of workdays on nights 1, 4 and 7, and days 1, 4 and 7. The results showed that there were significant differences of VAFS and SRT at the end of workdays, compared with at the start of workdays (p < 0.001). The fatigue level assessed by both SRT and VAFS was highest on the rotating day (p < 0.001). In conclusion, swing shifts might affect fatigue levels in shift workers. The fatigue level increased over the two-week work period. Further studies on fatigue assessment and management among onshore oil rig shift workers are still needed.

这项研究旨在评估一家从事轮班工作的石油公司的陆上石油钻机班轮工人的疲劳程度。工作计划包括一个星期的夜班12小时，然后一个星期的夜班12小时。使用主观和客观测量来评估疲劳，分别是视觉模拟疲劳量表（VAFS）和简单反应时间（SRT）测试。共有38名男性陆上石油钻机班工人参加了这项研究。在工作日的开始和结束时的第1、4和7晚以及第1、4和7天进行了疲劳评估。结果显示，与工作日结束时相比，VAFS和SRT在工作日结束时有显着差异工作日开始时（p <0.001）。通过SRT和VAFS评估的疲劳水平在轮转日最高（p <0.001）。综上所述，轮班可能会影响轮班工人的疲劳程度。在两周的工作时间内，疲劳程度有所增加。仍然需要对陆上石油钻机转换工人的疲劳评估和管理进行进一步研究。