1. Faculty of Human Sciences, University of Tsukuba, 3-29-1 Otsuka, Bunkyo-ku, Tokyo 1120012, Japan
2. R & D Center for Working Persons’ Psychological Support, University of Tsukuba, 3-29-1 Otsuka, Bunkyo-ku, Tokyo 1120012, Japan
3. TEKWIND Co., Ltd., 3-19-11 Yushima, Bunkyo-ku, Tokyo 1130034, Japan