2022, Volume 18
Negative correlation between the sleep qualities and cardiorespiratory fitness in adolescents
Joonyoung Han1, Eunjae Lee2
1Kinesiology, Yeungnam University, Gyeongsan-Si, South Korea
2Center for Sport Science in Incheon, Center for Sport Science in Incheon, Incheon, South Korea
Author for correspondence: Eunjae Lee; Center for Sport Science in Incheon, Center for Sport Science in Incheon, Incheon, South Korea; email: email@example.com
Background & Study Aim: To gain health and fitness benefits from moderate-to-vigorous physical activity, it is advisable to accumulate moderate-to-vigorous physical activity in 30 minutes’ periods in most cases on the recommended days of the week. The role exercise plays affect brain plasticity, physical activity is important for cognitive development, mood state, memory, learning, and concentration in students. The purpose of this study was knowledge about the physical fitness and sleep quality of male high school students participating in regular physical activities.
Material & Methods: Thirty healthy young male participants who were male high school students: 17 good sleep group and 13 poor sleep group. All participants measured body composition, sleep quality, and physical fitness. The Pittsburgh Sleep Quality Index (PSQI) is a self-report questionnaire that assesses sleep quality and quantity.
Results: PSQI global score (p<0.001), sleep quality (p<0.01), sleep onset latency (p<0.01), sleep duration (p<0.001), and daytime dysfunction (p<0.05) were significant difference in two groups. The physical fitness was no significant difference between the two groups. A negative correlation was found between the PSQI global score and VO2max (r = −0.488, p<0.01).
Conclusions: This study indicates an association between poor sleep quality and cardiopulmonary endurance. In addition, shortened sleep duration, longer sleep onset latency, and daytime dysfunction led to poor sleep quality even if participating in regular physical activity. These findings provide preliminary evidence that adolescents who have poor sleep quality are required that necessary to continue exercise or physical activity to improve cardiopulmonary endurance.
Key words: students, physical fitness, cardiopulmonary endurance