Establishment of objective index markers for the mental health problem in workers

为明确疲劳状态的客观特征，我们调查了日本东部A市某校207名大学生和430名教职员工以及日本西部某校304名教职员工的主观症状、自主神经功能、体力活动和睡眠参数。大学生的研究表明，自主神经功能与疲劳症状、体力活动和睡眠参数有关。此外，对一所学校教职员工的研究表明，A市和日本西部的工作人员不仅存在严重的疲劳症状，而且还存在交感神经过度活跃、清醒活动不足和醒着时小睡次数增加的现象。这些数据表明，自主神经功能与疲劳症状、体力活动和睡眠参数有明显的相关性，利用这些客观指标建立疲劳状态的诊断算法是可能的。

To clarify the objective features of the fatigue state, we investigated subjective symptoms, autonomic nerve function, physical activities, and sleep parameters in 207 college students and 430 staff members of a school that had been affected by the Great East Japan Earthquake in A-city, and 304 staff members of a school in west Japan. College students study suggests that autonomic nerve function is related to the fatigue symptoms, physical activities, and sleep parameters. Furthermore, the study for the staff members of a school indicates that both members in A-city and west Japan have not only severe fatigue symptoms, but also sympathetic hyperactivity, low awake activity and increase counts of catnaps during waking hours.These data suggests that autonomic nerve function is clearly related to the fatigue symptoms, physical activities, and sleep parameters, and that it is a possible to make a diagnostic algorithm for fatigue state by using these objective index markers.