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 consider important factors. We aim 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 screening for chronotype by the Korean versions of the Morningness - Eveningness Questionnaire (MEQ-K). The Pittsburgh Sleep Quality Index (PSQI) and Wingate Anaerobic Test (WAnT) were measurement after screening.Results: PSQI global score, PSQI sleep quality, PSQI sleep onset latency, PSQI sleep disturbance, and PSQI daytime dysfunction were significant differences among the groups. WAnT mean power (W), mean power (W/kg), peak power (W), and peak power (W/kg) were significant differences among the groups. A negative correlation coefficient was found between PSQI score and WAnT 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 chronotype may reduce the athletes’ performance in elite athletes. In addition, the sleep quality is much better in the early-type chronotype than in the late-type chronotype. Moreover, it also the athletic performance was better in the early-type chronotype than in the late-type chronotype.

Relationshp Between Sleep Quality, Mood State, and Performance of Elite Air-Rifle Shooters

“…Sleep and circadian rhythms have a direct relationship with cognitive and metabolic functions (4). In sports science, sleep time and sleep quality (5) are considered to be the key factors affecting athletic ability, recovery after exercise, and sports performance. Recently, an increasing number of studies have investigated the relationship between emotional and mental health and the performance of athletes during competitions (6) .…”