Sleep Quality and Athletic Performance According to Chronotype

Abstract

Background: When studying the quality of sleep in relation to athletic performance, the athlete's chronotype and habitual time were considered important factors. We aimed to investigate the sleep quality and athletes’ performance according to chronotype in elite athletes. Methods: Three hundred forty elite athletes (males = 261, females = 79) were recruited for the present study. All participants were screened for chronotype. Measurements of the Korean versions of the Morningness - Eveningness Questionnaire (MEQ-K), Pittsburgh Sleep Quality Index (PSQI), and Wingate Anaerobic Test (WAnT). Results: PSQI global score, PSQI sleep quality, PSQI sleep onset latency, PSQI sleep disturbance, and PSQI daytime dysfunction were significantly difference in among the groups. Mean power, and peak power were significantly difference in among the groups. A negative correlation was found between PSQI score and mean power (W), mean power (W/kg), peak power (W), and peak power (W/kg). Conclusions: This study indicates that related poor sleep quality and late type of chronotype may reduce the athletes’ performance in elite athletes. In additional, significant better sleep quality in early type of chronotype more than late type of chronotype. Moreover, also significant higher athletic performance in early type of chronotype more than late type of chronotype.

Biological Rhythm and Chronotype: New Perspectives in Health

“…M-types go to bed and wake up early and achieve their peak mental and physical performance in the early part of the day [ 19 ], whereas E-types get up and retire later and reach their best performance during the second half of the day [ 16 , 17 ]. Chronotype can also influence attitudes, lifestyle, cognitive function, athletic performance, and personality traits [ 20 , 21 , 22 , 23 , 24 , 25 ]. M-types have been suggested to be more conscientious, agreeable, and achievement-oriented.…”