Nishida Masaki, Yamamoto Kei, Murata Yusuke, Ichinose Atsushi, Shioda Kohei
Faculty of Sport Sciences, Waseda University, Tokorozawa, Japan.
Sleep Research Institute, Waseda University, Shinjuku-ku, Japan.
Sports Med Int Open. 2021 Sep 15;5(3):E73-E80. doi: 10.1055/a-1551-8054. eCollection 2021 Dec.
This study explored the effect of long naps on handball-related performance and assessed the role of the cardiac autonomic nervous system in this process. Eleven male collegiate handball players performed a repeated sequential trial consisting of a 20-m consecutive turnaround run, 10-m run with a load, and shooting the ball into a target. Participants were allocated randomly and sequentially to have a short (20 minutes) nap, long (60 minutes) nap, or no nap. The Pittsburgh Sleep Quality Index was used to assess regular sleep quality. Subjective sleepiness before and after napping was measured using the Karolinska Sleepiness Scale. Heart rate variability was recorded to assess cardiac autonomic nervous function during napping. The Pittsburgh Sleep Quality Index score was correlated with shot accuracy only after long naps (ρ=0.636, r=0.048). A negative correlation was observed between the root mean square of successive differences and average load run time (ρ=-0.929, p<0.001). Long napping was associated with a significant benefit on performance in athletes with poor sleep quality, implying a role of the autonomic nervous system in this regard. Our findings indicate the effect of sleep quality on the endurance and resistance of handball players.
本研究探讨了长时间午睡对手球相关运动表现的影响，并评估了心脏自主神经系统在此过程中的作用。11名男性大学生手球运动员进行了一项重复顺序试验，包括连续20米折返跑、负重10米跑以及将球射向目标。参与者被随机且顺序地分配进行短（20分钟）午睡、长（60分钟）午睡或不午睡。匹兹堡睡眠质量指数用于评估日常睡眠质量。使用卡罗林斯卡嗜睡量表测量午睡前后的主观嗜睡程度。记录心率变异性以评估午睡期间的心脏自主神经功能。仅在长时间午睡后，匹兹堡睡眠质量指数得分与投篮准确率相关（ρ=0.636，r=0.048）。连续差值的均方根与平均负重跑步时间之间存在负相关（ρ=-0.929，p<0.001）。长时间午睡对睡眠质量差的运动员的运动表现有显著益处，这意味着自主神经系统在这方面发挥了作用。我们的研究结果表明了睡眠质量对手球运动员耐力和抵抗力的影响。
