Webb W B, Agnew H W
Aviat Space Environ Med. 1978 Feb;49(2):384-9.
Six young adult males were assigned to a rapidly rotating shift work schedule (2 d 6 am-4 pm, 2 d 4 pm-10 pm, and 2 d 10 pm-6 am). They lived in the laboratory and completed two rotations. Their nonshift activities were ad libitum including sleep times. The patterns and structure of sleep were analyzed. Shift times systematically affected sleep patterns. Within shifts, Ss slept as late as possible prior to the morning shift, went to bed shortly after the night shift, and slept approximately midway between shifts on the afternoon shift. In transitioning to a new shift, the new shift time tended to determine sleep time. Sleep was significantly longer in transitions between shifts. Sleep structure was not markedly changed.
六名年轻成年男性被安排了快速轮班工作时间表（两天早上6点至下午4点，两天下午4点至晚上10点，两天晚上10点至早上6点）。他们住在实验室里，完成了两轮轮班。他们的非轮班活动不受限制，包括睡眠时间。对睡眠模式和结构进行了分析。轮班时间系统性地影响了睡眠模式。在轮班期间，受试者在早班前尽可能晚睡，夜班后不久上床睡觉，在中班时大约在两轮班的中间时间睡觉。在过渡到新的轮班时，新的轮班时间往往决定睡眠时间。轮班之间的过渡期间睡眠明显更长。睡眠结构没有明显变化。
