Changes in Appetite, Hunger, and Desired Food Intake of the University Students Belonging to an Athletic Club before and after Practices in Summer and Winter

抄録

The purpose of this study was to evaluate changes in the indices of appetite and hunger before and after the practice among university students of the athletic club in summer and winter. The participants were 16 healthy university female students (age: 19.8±1.3 y) who were members of the university basketball team. The survey was conducted once in July and once in February (2 d total). Basketball practice was held after school on both days (around 5:00 p.m. to 8:00 p.m.). The indices of appetite and hunger were measured immediately before and after practice, 15 and 30 min after practice. The indices of appetite and hunger increased significantly after 15 min of practice in winter, and a significant high positive correlation (r=0.88, p<0.05) was found between the appetite and hunger. On the other hand, the index of hunger in summer showed no significant difference between the immediately after practice and the thereafter. Although a significant positive correlation (r=0.50, p<0.05) was found between the appetite and the hunger, the correlation coefficient was significantly lower than that in winter. No significant differences were found between the seasons for both indices. It is thought that physiological responses to energy expenditure and increased heat dissipation increased appetite and hunger after winter practice among the students. After summer practice, the appetite for cold foods increased, however, there was no significant increase in hunger due to the effect of increased water intake.