About the Authors

Ryosuke Kawabata

Roles Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Resources, Software, Visualization, Writing – original draft, Writing – review & editing

kawabata-g@hachinohe-ct.ac.jp

Affiliations Department of Social Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori, Japan, Department of General Science Education, National Institute of Technology, Hachinohe College, Hachinohe, Aomori, Japan

Yuki Soma

Roles Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Resources, Software, Writing – original draft, Writing – review & editing

Affiliation Department of Life Science, Morioka Junior College, Iwate Prefectural University, Takizawa, Iwate, Japan

Yutaro Kudo

Roles Data curation, Investigation

Affiliation Department of Social Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori, Japan

Junichi Yokoyama

Roles Data curation, Investigation

Affiliations Department of Social Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori, Japan, Department of Physical Education, Nippon Sport Science University, Setagaya-ku, Tokyo, Japan

Hiroyasu Shimizu

Roles Data curation, Investigation

Affiliation Department of Social Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori, Japan

Arata Akaike

Roles Data curation, Investigation

Affiliation Department of Social Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori, Japan

Daisuke Suzuki

Roles Data curation, Investigation

Affiliation Department of Social Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori, Japan

Yoshihisa Katsuragi

Roles Data curation, Investigation

Affiliations Department of Active Life Promotion Sciences, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori, Japan, Health Care Food Research Laboratories, Kao Corporation, Sumida-ku, Tokyo, Japan

Manabu Totsuka

Roles Data curation, Investigation

Affiliation Department of Education, Hirosaki University, Hirosaki, Aomori, Japan

Shigeyuki Nakaji

Roles Conceptualization, Methodology, Project administration, Supervision, Visualization

Affiliation Department of Social Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori, Japan

Competing Interests

The author Y.K. received funding from Health Care Food Research Laboratories, Kao Corporation, Tokyo, Japan, a commercial company, in the form of salary and research materials. There are no patents, products in development or marketed products to declare. This does not alter our adherence to all the PLOS ONE policies on sharing data and materials.