Effects of One Night of Partial Sleep Deprivation upon Diurnal Rhythms of Accuracy and Consistency in Throwing Darts

Sixty subjects were tested five times per waking day on two occasions for accuracy and reliability in throwing 20 darts at a target. Two experimental conditions were investigated: following a normal nocturnal sleep (7–8 h sleep, normal) and after having retired to bed 4 h later than normal the previous night but rising at the normal time (3–4 h sleep, sleep deprivation). Sublingual (core) temperature and subjective estimates of alertness and...