Diet is an essential element in maintaining the physical condition of firefighters and emergency medical service crews. The purpose of this study was to clarify their nutrient and food intake status through a dietary survey using a photographic recording method and to organize the nutritional issues in terms of occupational health. The results showed that their intake of nutrients and foods during working days when they were dispatched more than once tended to be similar to that reported as the general population in the National Health and Nutrition Survey, showing low intake of energy, dietary fiber, vitamin, and mineral. As future issues, examining the amount of salt intake for preventing heatstroke and the desired timing of dietary intake and napping should be focused on. Future research for harmonizing nutritional issues with system components such as workability, human capability, work conditions, and work environments is warranted.

We examined whether hyperacute disaster medical resilience training can be applied to the sports field. The participants were 25 sports/nursing university students who participated in two trials of hyperacute disaster medical resilience training “Treasure Hunting”. In the first trial （n＝12）, we used the Group Effectiveness Scale and the Group Process Maturity Scale to determine whether the “Treasure Hunting” provided opportunities for participants to learn group effectiveness. In the second trial （n＝13）, based on the responses to the web survey, we examined whether “Treasure hunting” could be applied to the training of sports teams. Teams that performed well in the “Treasure Hunting” rated themselves higher in sharing goals, expressing emotions, leadership, decision-making processes, trust, mechanisms for obtaining feedback, cooperation, and clear communication. Moreover, the second trial showed that “Treasure hunting” has the applicability to sports that teamwork is the key to winning. Disaster response for recovery and sports have the process in common as leading the next action by obtaining limited information effectively from the uncertain fluid situation. The “Treasure Hunting” that made teams build high score strategies from limited information was thought to be useful in the sports field as well.

Through the experiences of a lot of natural disasters, good practices for disaster prevention education have been accumulated in Japan. Especially, good practices using the strategies of gamification are valuable to enhance participants’ motivation and educational effects. Hence, this study designed the problem-solving game aimed at disaster prevention education and examined its educational effects based on the AEIOU framework of science communication: Awareness, Enjoyment, Interest, Opinion formation, and Understanding. The participants were 26 Japanese university students （male＝12, female＝14）. To examine the educational effects, this study measured their pre/post literacy levels of disaster prevention using original items arranging the Scale for Science Edu-Communication Utilizing Awareness, Enjoyment, Interest, Opinion formation, and Understanding Dimensions. According to the results of the paired t-test, the scores of the “awareness,” “enjoyment” and “interest” on the post-test were significantly higher than those of the pre-test. In a total of 42.2％ participants, their “opinion formation” about the situations of disaster prevention were changed after intervention. Meanwhile, the scores of “understating” were not increased significantly after intervention. In conclusion, this study succeeded to design a new tool to increase their disaster prevention literacies by applying the strategy of gamification. To enhance the educational effects of this game, it is necessary not only to take other elements of gamification, but to refine the contents, and to improve the facilitation as well.

This study evaluated psycho-physiological effects of high carbon dioxide （CO₂） level in human. The subjects were 11 females aged from 21 to 23 years. They were exposed three CO₂ levels （atmospheric level, 2000 ppm and 4000 ppm） for 45 minutes in the experimental chamber. Psycho-physiological measurements were recorded before and after the CO₂ exposure. For mental arithmetic task, the numbers of correct answers after the CO₂ exposure were significantly decreased compared to that before the exposure under 2000 ppm and 4000 ppm CO₂ levels. P300 latencies were significantly delayed after the high CO₂ levels. They also increase subjective sleepiness significantly. These findings suggest that more than 2000 ppm CO₂ level on the room decrease arousal level and mental performance.

In order to detect deviations from an arousal level suitable for driving in the direction of strong tension, we attempted to utilize information on heart rate and respiration, which are easy to measure. Since physiological changes vary from person to person, physiological indices（ valid indices） suitable for estimating strong tension were selected for each individual, and judgments were made for each individual using the selected valid indices. The results of the judgments were in good agreement with the results of the subjective arousal evaluation. In addition, in the time difference between the judgments of strong tension and the subjective evaluation of high arousal, 89％ of the subjective evaluation had the judgment within 45 seconds, and 53％ of the judgement had the subjective evaluation within 45 seconds.