若年男子学生の午前の体育実技授業（水泳）時における自覚症状指標（疲労感、眠気、空腹感）の変化—調査当日の朝食摂取の有無で比較検討した実践的調査—

抄録

[Purpose] The purpose of this study was to investigate the changes of the subjective symptoms in individuals with or without a breakfast during the physical education swim class in morning. [Methods] Nineteen Japanese healthy male students with (＝BH group, n＝12, age : 16±0 years) or without (＝NH group, n＝7, age : 16±0 years) a breakfast volunteered to participate in this study. The content of the physical class was swimming (approximate 400m for 90 minutes) in summer (Temperature : 29.4±1.2°C, Relative humidity : 49.5±5.0%). Participant’s health check (‘‘no concentration’’ and ‘‘no vigor’’) and the indices of subjective symptoms (Fatigue, Sleepiness, Hunger) were measured during resting state in a room before and after (only the subjective symptoms) the first-hour physical education class. [Results & Discussion] Significant increases in Hunger, ‘‘no concentration’’ and ‘‘no vigor’’ in NH group were compared to BH group before the class (p<0.05). Though Hunger in BH group after the class was significantly higher than that of before (p<0.05), no significant difference was found on Hunger between before and after class in NH group. It was observed that the changes in the subjective symptoms before and after the first-hour physical education class varied depending on whether to eat a breakfast.